{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:WPCFRJ5O2N2AWNJNRRP3XG25AV","short_pith_number":"pith:WPCFRJ5O","canonical_record":{"source":{"id":"1805.00034","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-30T18:00:31Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"title_canon_sha256":"a127f723880b370b9d84214f321b4cb5d3a4ba11a10abf9d97a1f241a1f13203","abstract_canon_sha256":"ecfc911e87e25d53c69ea30157f7d77d9232ec87ebb3c87b8190d06e0704be23"},"schema_version":"1.0"},"canonical_sha256":"b3c458a7aed3740b352d8c5fbb9b5d055090a5c2bc2bf36e866e7f121167020e","source":{"kind":"arxiv","id":"1805.00034","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.00034","created_at":"2026-05-17T23:56:48Z"},{"alias_kind":"arxiv_version","alias_value":"1805.00034v2","created_at":"2026-05-17T23:56:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.00034","created_at":"2026-05-17T23:56:48Z"},{"alias_kind":"pith_short_12","alias_value":"WPCFRJ5O2N2A","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WPCFRJ5O2N2AWNJN","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WPCFRJ5O","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:WPCFRJ5O2N2AWNJNRRP3XG25AV","target":"record","payload":{"canonical_record":{"source":{"id":"1805.00034","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-30T18:00:31Z","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"title_canon_sha256":"a127f723880b370b9d84214f321b4cb5d3a4ba11a10abf9d97a1f241a1f13203","abstract_canon_sha256":"ecfc911e87e25d53c69ea30157f7d77d9232ec87ebb3c87b8190d06e0704be23"},"schema_version":"1.0"},"canonical_sha256":"b3c458a7aed3740b352d8c5fbb9b5d055090a5c2bc2bf36e866e7f121167020e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:48.033026Z","signature_b64":"rfnwAFfaSR7CfFff3ldJ39ckcOaRHiA1T8MojZWSVbZL2CMHUFcPBlnHZzwZrb/qlg1m+TptqFgT1GBnI0r8BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b3c458a7aed3740b352d8c5fbb9b5d055090a5c2bc2bf36e866e7f121167020e","last_reissued_at":"2026-05-17T23:56:48.032623Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:48.032623Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.00034","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:56:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d7nTZJkxpD9sMdKk1ahUFeOqQkqU5HIjOWyK7JmqqvEYzH37gcI3ub5/t5UfJGqlOH7RjUsnU+jX/v/QTsAXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:50:23.040368Z"},"content_sha256":"1603ef257cb0a9a8a1d676a0836d79a21f4e0a07ed91900e53cac1215b1eb787","schema_version":"1.0","event_id":"sha256:1603ef257cb0a9a8a1d676a0836d79a21f4e0a07ed91900e53cac1215b1eb787"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:WPCFRJ5O2N2AWNJNRRP3XG25AV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-thermal pressure support in X-COP galaxy clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"C. Tchernin, D. Eckert, E. Pointecouteau, E. Rasia, F. Gastaldello, F. Vazza, H. Bourdin, M. Gaspari, M. Roncarelli, M. Rossetti, S. De Grandi, S. Ettori, S. Ghizzardi, S. Molendi, V. Biffi, V. Ghirardini","submitted_at":"2018-04-30T18:00:31Z","abstract_excerpt":"Galaxy clusters are the endpoints of structure formation and are continuously growing through the merging and accretion of smaller structures. Numerical simulations predict that a fraction of their energy content is not yet thermalized, mainly in the form of kinetic motions (turbulence, bulk motions). Measuring the level of non-thermal pressure support is necessary to understand the processes leading to the virialization of the gas within the potential well of the main halo and to calibrate the biases in hydrostatic mass estimates. We present high-quality measurements of hydrostatic masses and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.00034","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:56:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5oK0OinrTJ4Q2Vs3P1L7/KPmdXcehxS7CIb85nIsogbVsCVIBZSNWkoCW5xTBQ4mXVQZjJhI3kie3Abit5g1Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:50:23.041004Z"},"content_sha256":"da2d13676bed696a9735861cd653cffdb984a94a7ed45b9f34dbfc5e2de778d3","schema_version":"1.0","event_id":"sha256:da2d13676bed696a9735861cd653cffdb984a94a7ed45b9f34dbfc5e2de778d3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WPCFRJ5O2N2AWNJNRRP3XG25AV/bundle.json","state_url":"https://pith.science/pith/WPCFRJ5O2N2AWNJNRRP3XG25AV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WPCFRJ5O2N2AWNJNRRP3XG25AV/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":"2026-05-26T16:50:23Z","links":{"resolver":"https://pith.science/pith/WPCFRJ5O2N2AWNJNRRP3XG25AV","bundle":"https://pith.science/pith/WPCFRJ5O2N2AWNJNRRP3XG25AV/bundle.json","state":"https://pith.science/pith/WPCFRJ5O2N2AWNJNRRP3XG25AV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WPCFRJ5O2N2AWNJNRRP3XG25AV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:WPCFRJ5O2N2AWNJNRRP3XG25AV","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":"ecfc911e87e25d53c69ea30157f7d77d9232ec87ebb3c87b8190d06e0704be23","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-30T18:00:31Z","title_canon_sha256":"a127f723880b370b9d84214f321b4cb5d3a4ba11a10abf9d97a1f241a1f13203"},"schema_version":"1.0","source":{"id":"1805.00034","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.00034","created_at":"2026-05-17T23:56:48Z"},{"alias_kind":"arxiv_version","alias_value":"1805.00034v2","created_at":"2026-05-17T23:56:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.00034","created_at":"2026-05-17T23:56:48Z"},{"alias_kind":"pith_short_12","alias_value":"WPCFRJ5O2N2A","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WPCFRJ5O2N2AWNJN","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WPCFRJ5O","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:da2d13676bed696a9735861cd653cffdb984a94a7ed45b9f34dbfc5e2de778d3","target":"graph","created_at":"2026-05-17T23:56:48Z","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":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Galaxy clusters are the endpoints of structure formation and are continuously growing through the merging and accretion of smaller structures. Numerical simulations predict that a fraction of their energy content is not yet thermalized, mainly in the form of kinetic motions (turbulence, bulk motions). Measuring the level of non-thermal pressure support is necessary to understand the processes leading to the virialization of the gas within the potential well of the main halo and to calibrate the biases in hydrostatic mass estimates. We present high-quality measurements of hydrostatic masses and","authors_text":"C. Tchernin, D. Eckert, E. Pointecouteau, E. Rasia, F. Gastaldello, F. Vazza, H. Bourdin, M. Gaspari, M. Roncarelli, M. Rossetti, S. De Grandi, S. Ettori, S. Ghizzardi, S. Molendi, V. Biffi, V. Ghirardini","cross_cats":["astro-ph.GA","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-30T18:00:31Z","title":"Non-thermal pressure support in X-COP galaxy clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.00034","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1603ef257cb0a9a8a1d676a0836d79a21f4e0a07ed91900e53cac1215b1eb787","target":"record","created_at":"2026-05-17T23:56:48Z","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":"ecfc911e87e25d53c69ea30157f7d77d9232ec87ebb3c87b8190d06e0704be23","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-30T18:00:31Z","title_canon_sha256":"a127f723880b370b9d84214f321b4cb5d3a4ba11a10abf9d97a1f241a1f13203"},"schema_version":"1.0","source":{"id":"1805.00034","kind":"arxiv","version":2}},"canonical_sha256":"b3c458a7aed3740b352d8c5fbb9b5d055090a5c2bc2bf36e866e7f121167020e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3c458a7aed3740b352d8c5fbb9b5d055090a5c2bc2bf36e866e7f121167020e","first_computed_at":"2026-05-17T23:56:48.032623Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:48.032623Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rfnwAFfaSR7CfFff3ldJ39ckcOaRHiA1T8MojZWSVbZL2CMHUFcPBlnHZzwZrb/qlg1m+TptqFgT1GBnI0r8BA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:48.033026Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.00034","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1603ef257cb0a9a8a1d676a0836d79a21f4e0a07ed91900e53cac1215b1eb787","sha256:da2d13676bed696a9735861cd653cffdb984a94a7ed45b9f34dbfc5e2de778d3"],"state_sha256":"d2437883ce7dcdc7a84a641bf6d7bf532a9677cf860b3a3ac06cb30dab68754c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Efz+mfq0IPFfs6ADvSxkurHk/BAtnHL35bgZKaOmVn/4CHBmkKzqe/NkwwA3mYxaUytBImSK2SQfeBPuDgQAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T16:50:23.043900Z","bundle_sha256":"4dfa65ae5d9412232835570a746479f589e4d4451d16560f677974f53f608d99"}}