{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:O4BCM3SY6LCQ4VVCPFRLEDQA7U","short_pith_number":"pith:O4BCM3SY","canonical_record":{"source":{"id":"2012.13302","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-24T15:59:00Z","cross_cats_sorted":[],"title_canon_sha256":"915b28bb7106f2a4861c921ee4aa8ed512c5d81867d4724bcb8d2446b5196ab1","abstract_canon_sha256":"088bf45a8a0b686facda5d9940412f63562f2ff9944b823cc922f24001e0c028"},"schema_version":"1.0"},"canonical_sha256":"7702266e58f2c50e56a27962b20e00fd0cb8af6f3877823358baa9cf7322eba4","source":{"kind":"arxiv","id":"2012.13302","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.13302","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"arxiv_version","alias_value":"2012.13302v1","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.13302","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"pith_short_12","alias_value":"O4BCM3SY6LCQ","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"pith_short_16","alias_value":"O4BCM3SY6LCQ4VVC","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"pith_short_8","alias_value":"O4BCM3SY","created_at":"2026-07-05T02:01:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:O4BCM3SY6LCQ4VVCPFRLEDQA7U","target":"record","payload":{"canonical_record":{"source":{"id":"2012.13302","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-24T15:59:00Z","cross_cats_sorted":[],"title_canon_sha256":"915b28bb7106f2a4861c921ee4aa8ed512c5d81867d4724bcb8d2446b5196ab1","abstract_canon_sha256":"088bf45a8a0b686facda5d9940412f63562f2ff9944b823cc922f24001e0c028"},"schema_version":"1.0"},"canonical_sha256":"7702266e58f2c50e56a27962b20e00fd0cb8af6f3877823358baa9cf7322eba4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:01:57.010084Z","signature_b64":"jP1myQ7ScrKGj86lNfE+XyogGrGIYo771gudqXmv8U6seY3FtYo703fl/+7hUymbsfwnKhqrJMEXS6AnBxF3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7702266e58f2c50e56a27962b20e00fd0cb8af6f3877823358baa9cf7322eba4","last_reissued_at":"2026-07-05T02:01:57.009708Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:01:57.009708Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.13302","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:01:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OroFJc83OMhoDt3K3PdoiQQ8HIurYALVxWKIdB4R+x9xP58Y7LwHIOqfNzBIe+OLs3uIS+HZ1r5WmgJWwMmYBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T11:12:28.359121Z"},"content_sha256":"e451e4428f2675af4697c074f518dd78593cc1198f7e42db25ee289b75a372fb","schema_version":"1.0","event_id":"sha256:e451e4428f2675af4697c074f518dd78593cc1198f7e42db25ee289b75a372fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:O4BCM3SY6LCQ4VVCPFRLEDQA7U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Leptonic and Hadronic Radiative Processes in Supermassive-Black-Hole Jets","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Matteo Cerruti","submitted_at":"2020-12-24T15:59:00Z","abstract_excerpt":"Supermassive black holes lying in the center of galaxies can launch relativistic jets of plasma along their polar axis. The physics of black-hole jets is a very active research topic in astrophysics, owing to the fact that many questions remain open on the physical mechanisms of jet launching, of particle acceleration in the jet, and on the radiative processes. In this work I focus on the last item, and present a review of the current understanding of radiative emission processes in supermassive-black-hole jets."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.13302","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2012.13302/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:01:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mi6mbNvpe4Bb2uapVeBIyslhj5TJX82DwHsab0nmhII1kq8hChuYe+KWWy0JpqeBPoOrFWEZkf7DMwnc19EcBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T11:12:28.359612Z"},"content_sha256":"6eb7d04796b57958e73f1122f59f5dcdb20109d338431132f57d4baf640e2706","schema_version":"1.0","event_id":"sha256:6eb7d04796b57958e73f1122f59f5dcdb20109d338431132f57d4baf640e2706"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O4BCM3SY6LCQ4VVCPFRLEDQA7U/bundle.json","state_url":"https://pith.science/pith/O4BCM3SY6LCQ4VVCPFRLEDQA7U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O4BCM3SY6LCQ4VVCPFRLEDQA7U/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":"2026-08-08T11:12:28Z","links":{"resolver":"https://pith.science/pith/O4BCM3SY6LCQ4VVCPFRLEDQA7U","bundle":"https://pith.science/pith/O4BCM3SY6LCQ4VVCPFRLEDQA7U/bundle.json","state":"https://pith.science/pith/O4BCM3SY6LCQ4VVCPFRLEDQA7U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O4BCM3SY6LCQ4VVCPFRLEDQA7U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:O4BCM3SY6LCQ4VVCPFRLEDQA7U","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":"088bf45a8a0b686facda5d9940412f63562f2ff9944b823cc922f24001e0c028","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-24T15:59:00Z","title_canon_sha256":"915b28bb7106f2a4861c921ee4aa8ed512c5d81867d4724bcb8d2446b5196ab1"},"schema_version":"1.0","source":{"id":"2012.13302","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.13302","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"arxiv_version","alias_value":"2012.13302v1","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.13302","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"pith_short_12","alias_value":"O4BCM3SY6LCQ","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"pith_short_16","alias_value":"O4BCM3SY6LCQ4VVC","created_at":"2026-07-05T02:01:57Z"},{"alias_kind":"pith_short_8","alias_value":"O4BCM3SY","created_at":"2026-07-05T02:01:57Z"}],"graph_snapshots":[{"event_id":"sha256:6eb7d04796b57958e73f1122f59f5dcdb20109d338431132f57d4baf640e2706","target":"graph","created_at":"2026-07-05T02:01:57Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2012.13302/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Supermassive black holes lying in the center of galaxies can launch relativistic jets of plasma along their polar axis. The physics of black-hole jets is a very active research topic in astrophysics, owing to the fact that many questions remain open on the physical mechanisms of jet launching, of particle acceleration in the jet, and on the radiative processes. In this work I focus on the last item, and present a review of the current understanding of radiative emission processes in supermassive-black-hole jets.","authors_text":"Matteo Cerruti","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-24T15:59:00Z","title":"Leptonic and Hadronic Radiative Processes in Supermassive-Black-Hole Jets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.13302","kind":"arxiv","version":1},"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:e451e4428f2675af4697c074f518dd78593cc1198f7e42db25ee289b75a372fb","target":"record","created_at":"2026-07-05T02:01:57Z","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":"088bf45a8a0b686facda5d9940412f63562f2ff9944b823cc922f24001e0c028","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-12-24T15:59:00Z","title_canon_sha256":"915b28bb7106f2a4861c921ee4aa8ed512c5d81867d4724bcb8d2446b5196ab1"},"schema_version":"1.0","source":{"id":"2012.13302","kind":"arxiv","version":1}},"canonical_sha256":"7702266e58f2c50e56a27962b20e00fd0cb8af6f3877823358baa9cf7322eba4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7702266e58f2c50e56a27962b20e00fd0cb8af6f3877823358baa9cf7322eba4","first_computed_at":"2026-07-05T02:01:57.009708Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:01:57.009708Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jP1myQ7ScrKGj86lNfE+XyogGrGIYo771gudqXmv8U6seY3FtYo703fl/+7hUymbsfwnKhqrJMEXS6AnBxF3DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:01:57.010084Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.13302","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e451e4428f2675af4697c074f518dd78593cc1198f7e42db25ee289b75a372fb","sha256:6eb7d04796b57958e73f1122f59f5dcdb20109d338431132f57d4baf640e2706"],"state_sha256":"062370abe409be05d8eb22ffe357cd673446d6412c4dba35413e26bcc04f055a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YVnmeuYbXQLDC3qHClxubVU2SAbFPyO3f0FcREVaDA5fZvJ9HcmvzORn3b86gk84qZD38j46NUYf1cr3RmWcBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T11:12:28.364565Z","bundle_sha256":"c6da9256b5d19f850a20a205796d2004eb9884cb4b9adda032196c3cde755f0a"}}