{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ESME3LXHOGJ2CDP4SRUEXO44VW","short_pith_number":"pith:ESME3LXH","canonical_record":{"source":{"id":"1912.02622","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-12-05T14:57:00Z","cross_cats_sorted":["astro-ph.HE","gr-qc"],"title_canon_sha256":"059b25d7fa3f7df69c54de616cb7f4ecd300aa454129ad4291b201c2772b508e","abstract_canon_sha256":"f645b43cdc4e408076e722a637fae7cc70146c744be338f42bde2e2c88bb66d7"},"schema_version":"1.0"},"canonical_sha256":"24984daee77193a10dfc94684bbb9cadba9cb7b821c3485a29b7a3780381d8db","source":{"kind":"arxiv","id":"1912.02622","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.02622","created_at":"2026-05-17T23:38:49Z"},{"alias_kind":"arxiv_version","alias_value":"1912.02622v4","created_at":"2026-05-17T23:38:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.02622","created_at":"2026-05-17T23:38:49Z"},{"alias_kind":"pith_short_12","alias_value":"ESME3LXHOGJ2","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"ESME3LXHOGJ2CDP4","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"ESME3LXH","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ESME3LXHOGJ2CDP4SRUEXO44VW","target":"record","payload":{"canonical_record":{"source":{"id":"1912.02622","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-12-05T14:57:00Z","cross_cats_sorted":["astro-ph.HE","gr-qc"],"title_canon_sha256":"059b25d7fa3f7df69c54de616cb7f4ecd300aa454129ad4291b201c2772b508e","abstract_canon_sha256":"f645b43cdc4e408076e722a637fae7cc70146c744be338f42bde2e2c88bb66d7"},"schema_version":"1.0"},"canonical_sha256":"24984daee77193a10dfc94684bbb9cadba9cb7b821c3485a29b7a3780381d8db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:38:49.648623Z","signature_b64":"5cj4uNNL9Qd17sYVZJHiKPYnJMJhZAhiojdW+9cRflf7GhUM26v32kGfA5gEhqy9l7D8RhsnKdtCjfIcuNxuCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"24984daee77193a10dfc94684bbb9cadba9cb7b821c3485a29b7a3780381d8db","last_reissued_at":"2026-05-17T23:38:49.648130Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:38:49.648130Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1912.02622","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:38:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XMOHBmgySsnEFfCSrtiuIdkHwGf2ihuhgMPg5P5YYyWf0a4lg/xQH/Gz2ufrDDcbO0IIlCQ/045iq3ejoVwpCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T14:11:25.120042Z"},"content_sha256":"0918c41257e5a149926d1e06aa04521660cf8d1896a616404021b293a6dc3af8","schema_version":"1.0","event_id":"sha256:0918c41257e5a149926d1e06aa04521660cf8d1896a616404021b293a6dc3af8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ESME3LXHOGJ2CDP4SRUEXO44VW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Science Case for the Einstein Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"The Einstein Telescope will explore the universe with gravitational waves up to cosmological distances and open pathways to discoveries in astrophysics, cosmology, and fundamental physics.","cross_cats":["astro-ph.HE","gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Angelo Ricciardone, Chris Van Den Broeck, Cristiano Palomba, Daniele Bertacca, Enis Belgacem, Jan Harms, Juan Garc\\'ia-Bellido, Mairi Sakellariadou, Marco Peloso, Marica Branchesi, Marie Anne Bizouard, Michele Maggiore, Nicola Bartolo, Sabino Matarrese, Sebastien Clesse, Stefan Grimm, Stefano Foffa, Tanja Hinderer","submitted_at":"2019-12-05T14:57:00Z","abstract_excerpt":"The Einstein Telescope (ET), a proposed European ground-based gravitational-wave detector of third-generation, is an evolution of second-generation detectors such as Advanced LIGO, Advanced Virgo, and KAGRA which could be operating in the mid 2030s. ET will explore the universe with gravitational waves up to cosmological distances. We discuss its main scientific objectives and its potential for discoveries in astrophysics, cosmology and fundamental physics."},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"ET will explore the universe with gravitational waves up to cosmological distances and has potential for discoveries in astrophysics, cosmology and fundamental physics.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The projected sensitivity and operational performance of the detector will be achieved as modeled, allowing access to the assumed population of sources at cosmological distances.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"The Einstein Telescope will enable gravitational-wave observations up to cosmological distances, opening avenues for discoveries in astrophysics, cosmology, and fundamental physics.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"The Einstein Telescope will explore the universe with gravitational waves up to cosmological distances and open pathways to discoveries in astrophysics, cosmology, and fundamental physics.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"233efc907ce97cafd10c91f0fad2182cf4936a19492347cd3e4472adedcf0e09"},"source":{"id":"1912.02622","kind":"arxiv","version":4},"verdict":{"id":"965cc842-923c-4ea3-853e-58008a2500d5","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-16T00:09:33.500438Z","strongest_claim":"ET will explore the universe with gravitational waves up to cosmological distances and has potential for discoveries in astrophysics, cosmology and fundamental physics.","one_line_summary":"The Einstein Telescope will enable gravitational-wave observations up to cosmological distances, opening avenues for discoveries in astrophysics, cosmology, and fundamental physics.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The projected sensitivity and operational performance of the detector will be achieved as modeled, allowing access to the assumed population of sources at cosmological distances.","pith_extraction_headline":"The Einstein Telescope will explore the universe with gravitational waves up to cosmological distances and open pathways to discoveries in astrophysics, cosmology, and fundamental physics."},"references":{"count":238,"sample":[{"doi":"","year":2016,"title":"Observation of Gravitational Waves from a Binary Black Hole Merger","work_id":"ab878228-151c-4a29-8026-a4308b076d30","ref_index":1,"cited_arxiv_id":"1602.03837","is_internal_anchor":true},{"doi":"","year":2017,"title":"GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral","work_id":"a19136e8-99c2-49be-b029-60af2e20c6ee","ref_index":2,"cited_arxiv_id":"1710.05832","is_internal_anchor":true},{"doi":"","year":2017,"title":"Goldsteinet al., An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM De- tection of GRB 170817A, Astrophys","work_id":"a5a4dda4-5c1d-4aa6-82d8-5ec84ea1f929","ref_index":3,"cited_arxiv_id":"1710.05446","is_internal_anchor":true},{"doi":"","year":2017,"title":"INTEGRAL Detection of the First Prompt Gamma-Ray Signal Coincident with the Gravitational Wave Event GW170817","work_id":"91b5c734-9c3e-479a-bca9-a45f5a8dcb3b","ref_index":4,"cited_arxiv_id":"1710.05449","is_internal_anchor":true},{"doi":"","year":2017,"title":"Gravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A","work_id":"698d844c-7eca-45ec-8b87-a02243aaec15","ref_index":5,"cited_arxiv_id":"1710.05834","is_internal_anchor":true}],"resolved_work":238,"snapshot_sha256":"ca49facaf9517b53eca19ea9e2465f46e4f298471af8285722e32fcaecc7b3ae","internal_anchors":146},"formal_canon":{"evidence_count":2,"snapshot_sha256":"503416fb9fb43c00180b9cf559eaaef1a83c041071c328a6ac3b54923c80af5b"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":"965cc842-923c-4ea3-853e-58008a2500d5"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:38:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2ruM2KI7uCfHft7J+MkPag/40v7YGroVh+rDmkPwMiamU3M8eYFn6buq2yRKZYHUMb7M6vQbhuL0WbjRhL+XBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T14:11:25.120678Z"},"content_sha256":"f57118490d7c4eb2f74bb738fc0064cac152b04135b58352de8343c370778bc7","schema_version":"1.0","event_id":"sha256:f57118490d7c4eb2f74bb738fc0064cac152b04135b58352de8343c370778bc7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ESME3LXHOGJ2CDP4SRUEXO44VW/bundle.json","state_url":"https://pith.science/pith/ESME3LXHOGJ2CDP4SRUEXO44VW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ESME3LXHOGJ2CDP4SRUEXO44VW/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-19T14:11:25Z","links":{"resolver":"https://pith.science/pith/ESME3LXHOGJ2CDP4SRUEXO44VW","bundle":"https://pith.science/pith/ESME3LXHOGJ2CDP4SRUEXO44VW/bundle.json","state":"https://pith.science/pith/ESME3LXHOGJ2CDP4SRUEXO44VW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ESME3LXHOGJ2CDP4SRUEXO44VW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ESME3LXHOGJ2CDP4SRUEXO44VW","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"f645b43cdc4e408076e722a637fae7cc70146c744be338f42bde2e2c88bb66d7","cross_cats_sorted":["astro-ph.HE","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-12-05T14:57:00Z","title_canon_sha256":"059b25d7fa3f7df69c54de616cb7f4ecd300aa454129ad4291b201c2772b508e"},"schema_version":"1.0","source":{"id":"1912.02622","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.02622","created_at":"2026-05-17T23:38:49Z"},{"alias_kind":"arxiv_version","alias_value":"1912.02622v4","created_at":"2026-05-17T23:38:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.02622","created_at":"2026-05-17T23:38:49Z"},{"alias_kind":"pith_short_12","alias_value":"ESME3LXHOGJ2","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"ESME3LXHOGJ2CDP4","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"ESME3LXH","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:f57118490d7c4eb2f74bb738fc0064cac152b04135b58352de8343c370778bc7","target":"graph","created_at":"2026-05-17T23:38:49Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"ET will explore the universe with gravitational waves up to cosmological distances and has potential for discoveries in astrophysics, cosmology and fundamental physics."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The projected sensitivity and operational performance of the detector will be achieved as modeled, allowing access to the assumed population of sources at cosmological distances."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"The Einstein Telescope will enable gravitational-wave observations up to cosmological distances, opening avenues for discoveries in astrophysics, cosmology, and fundamental physics."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"The Einstein Telescope will explore the universe with gravitational waves up to cosmological distances and open pathways to discoveries in astrophysics, cosmology, and fundamental physics."}],"snapshot_sha256":"233efc907ce97cafd10c91f0fad2182cf4936a19492347cd3e4472adedcf0e09"},"formal_canon":{"evidence_count":2,"snapshot_sha256":"503416fb9fb43c00180b9cf559eaaef1a83c041071c328a6ac3b54923c80af5b"},"paper":{"abstract_excerpt":"The Einstein Telescope (ET), a proposed European ground-based gravitational-wave detector of third-generation, is an evolution of second-generation detectors such as Advanced LIGO, Advanced Virgo, and KAGRA which could be operating in the mid 2030s. ET will explore the universe with gravitational waves up to cosmological distances. We discuss its main scientific objectives and its potential for discoveries in astrophysics, cosmology and fundamental physics.","authors_text":"Angelo Ricciardone, Chris Van Den Broeck, Cristiano Palomba, Daniele Bertacca, Enis Belgacem, Jan Harms, Juan Garc\\'ia-Bellido, Mairi Sakellariadou, Marco Peloso, Marica Branchesi, Marie Anne Bizouard, Michele Maggiore, Nicola Bartolo, Sabino Matarrese, Sebastien Clesse, Stefan Grimm, Stefano Foffa, Tanja Hinderer","cross_cats":["astro-ph.HE","gr-qc"],"headline":"The Einstein Telescope will explore the universe with gravitational waves up to cosmological distances and open pathways to discoveries in astrophysics, cosmology, and fundamental physics.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-12-05T14:57:00Z","title":"Science Case for the Einstein Telescope"},"references":{"count":238,"internal_anchors":146,"resolved_work":238,"sample":[{"cited_arxiv_id":"1602.03837","doi":"","is_internal_anchor":true,"ref_index":1,"title":"Observation of Gravitational Waves from a Binary Black Hole Merger","work_id":"ab878228-151c-4a29-8026-a4308b076d30","year":2016},{"cited_arxiv_id":"1710.05832","doi":"","is_internal_anchor":true,"ref_index":2,"title":"GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral","work_id":"a19136e8-99c2-49be-b029-60af2e20c6ee","year":2017},{"cited_arxiv_id":"1710.05446","doi":"","is_internal_anchor":true,"ref_index":3,"title":"Goldsteinet al., An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM De- tection of GRB 170817A, Astrophys","work_id":"a5a4dda4-5c1d-4aa6-82d8-5ec84ea1f929","year":2017},{"cited_arxiv_id":"1710.05449","doi":"","is_internal_anchor":true,"ref_index":4,"title":"INTEGRAL Detection of the First Prompt Gamma-Ray Signal Coincident with the Gravitational Wave Event GW170817","work_id":"91b5c734-9c3e-479a-bca9-a45f5a8dcb3b","year":2017},{"cited_arxiv_id":"1710.05834","doi":"","is_internal_anchor":true,"ref_index":5,"title":"Gravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A","work_id":"698d844c-7eca-45ec-8b87-a02243aaec15","year":2017}],"snapshot_sha256":"ca49facaf9517b53eca19ea9e2465f46e4f298471af8285722e32fcaecc7b3ae"},"source":{"id":"1912.02622","kind":"arxiv","version":4},"verdict":{"created_at":"2026-05-16T00:09:33.500438Z","id":"965cc842-923c-4ea3-853e-58008a2500d5","model_set":{"reader":"grok-4.3"},"one_line_summary":"The Einstein Telescope will enable gravitational-wave observations up to cosmological distances, opening avenues for discoveries in astrophysics, cosmology, and fundamental physics.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"The Einstein Telescope will explore the universe with gravitational waves up to cosmological distances and open pathways to discoveries in astrophysics, cosmology, and fundamental physics.","strongest_claim":"ET will explore the universe with gravitational waves up to cosmological distances and has potential for discoveries in astrophysics, cosmology and fundamental physics.","weakest_assumption":"The projected sensitivity and operational performance of the detector will be achieved as modeled, allowing access to the assumed population of sources at cosmological distances."}},"verdict_id":"965cc842-923c-4ea3-853e-58008a2500d5"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:0918c41257e5a149926d1e06aa04521660cf8d1896a616404021b293a6dc3af8","target":"record","created_at":"2026-05-17T23:38:49Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"f645b43cdc4e408076e722a637fae7cc70146c744be338f42bde2e2c88bb66d7","cross_cats_sorted":["astro-ph.HE","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-12-05T14:57:00Z","title_canon_sha256":"059b25d7fa3f7df69c54de616cb7f4ecd300aa454129ad4291b201c2772b508e"},"schema_version":"1.0","source":{"id":"1912.02622","kind":"arxiv","version":4}},"canonical_sha256":"24984daee77193a10dfc94684bbb9cadba9cb7b821c3485a29b7a3780381d8db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"24984daee77193a10dfc94684bbb9cadba9cb7b821c3485a29b7a3780381d8db","first_computed_at":"2026-05-17T23:38:49.648130Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:38:49.648130Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5cj4uNNL9Qd17sYVZJHiKPYnJMJhZAhiojdW+9cRflf7GhUM26v32kGfA5gEhqy9l7D8RhsnKdtCjfIcuNxuCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:38:49.648623Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.02622","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0918c41257e5a149926d1e06aa04521660cf8d1896a616404021b293a6dc3af8","sha256:f57118490d7c4eb2f74bb738fc0064cac152b04135b58352de8343c370778bc7"],"state_sha256":"7ffddf556fc0ad4610075778963bbd358d3ec43ecd502f914d8a7bf66c68b78f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C1ReYRZLRHy8gPTTDzI07H2gYt6rIgIJ+W3kdjRDIzS2d+MBbVze4CVo4TSmT9NrsT+iaaqs0Mp5qUWaako1Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T14:11:25.124532Z","bundle_sha256":"1e21cbd5e0b27b221df07d23fc087b9469da91a4e6c506ca57c5591b4e061654"}}