{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:TL5Q4JVJPLIU2FEC6NIOF52NLO","short_pith_number":"pith:TL5Q4JVJ","canonical_record":{"source":{"id":"1504.06517","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-24T14:13:20Z","cross_cats_sorted":[],"title_canon_sha256":"06be566b286edddd4dae42c7356fc768851fae493aa8ab4176e6e7951fdc9889","abstract_canon_sha256":"ae84bedd2026e485b7016ef3e6cb75682921640cd96c7447cef0974298f643de"},"schema_version":"1.0"},"canonical_sha256":"9afb0e26a97ad14d1482f350e2f74d5bafb24fffab969bd02c655598e28b55b0","source":{"kind":"arxiv","id":"1504.06517","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.06517","created_at":"2026-05-18T02:17:53Z"},{"alias_kind":"arxiv_version","alias_value":"1504.06517v1","created_at":"2026-05-18T02:17:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.06517","created_at":"2026-05-18T02:17:53Z"},{"alias_kind":"pith_short_12","alias_value":"TL5Q4JVJPLIU","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"TL5Q4JVJPLIU2FEC","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"TL5Q4JVJ","created_at":"2026-05-18T12:29:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:TL5Q4JVJPLIU2FEC6NIOF52NLO","target":"record","payload":{"canonical_record":{"source":{"id":"1504.06517","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-24T14:13:20Z","cross_cats_sorted":[],"title_canon_sha256":"06be566b286edddd4dae42c7356fc768851fae493aa8ab4176e6e7951fdc9889","abstract_canon_sha256":"ae84bedd2026e485b7016ef3e6cb75682921640cd96c7447cef0974298f643de"},"schema_version":"1.0"},"canonical_sha256":"9afb0e26a97ad14d1482f350e2f74d5bafb24fffab969bd02c655598e28b55b0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:53.416141Z","signature_b64":"K6SosWVy8I8dXJGSjZfqj7hAMsOe8mUyTy7AhpEyvFwZ3Co36jw9FYpMHD67hwrq8UuRiLnHp13KJsG8KNYmCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9afb0e26a97ad14d1482f350e2f74d5bafb24fffab969bd02c655598e28b55b0","last_reissued_at":"2026-05-18T02:17:53.415575Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:53.415575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.06517","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":"2026-05-18T02:17:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z95KwzOlz7E96wEfiAB1/PunVd2YPzwXdprcX1EB9Dzrnjqi3/EHxCbUpLxSvkxsdB7m/N3IqoNqhw4ff7fYBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:07:20.479968Z"},"content_sha256":"de296d3601863632c9509ce10b114854ae6a48d2466435e3964e38280eeab90a","schema_version":"1.0","event_id":"sha256:de296d3601863632c9509ce10b114854ae6a48d2466435e3964e38280eeab90a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:TL5Q4JVJPLIU2FEC6NIOF52NLO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-energy Emission Processes in M 87","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Gros, A. Tramacere, S. de Jong, S. Soldi, V. Beckmann","submitted_at":"2015-04-24T14:13:20Z","abstract_excerpt":"We study the contribution of thermal and non-thermal processes to the inverse Compton emission of the radio galaxy M 87 by modelling its broad-band emission. Through this we aim to derive insight into where within the AGN the X-ray, gamma-ray, and VHE emission is produced. We have analysed all available INTEGRAL IBIS/ISGRI data on M 87, spanning almost 10 years, to set an upper limit to the average hard X-ray flux of $f(20 - 60 \\rm \\, keV) < 3\\times 10^{-12}$ $\\rm \\, erg \\, cm^{-2} \\, s^{-1}$, using several techniques beyond the standard analysis which are also presented here. We also analysed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.06517","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":""},"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":"2026-05-18T02:17:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"58AsjARh2WrDNFKmV+/kvYSy0k5plGs+rADVRh0c/CnkcfBxcUvAVoDLWa/dFouZIjBQFJlCjvfXGOc556v+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:07:20.480310Z"},"content_sha256":"8d95a2c33fe80d2a5e01a0b169a7680a58d040029f868210a077adcc1bd2a98e","schema_version":"1.0","event_id":"sha256:8d95a2c33fe80d2a5e01a0b169a7680a58d040029f868210a077adcc1bd2a98e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TL5Q4JVJPLIU2FEC6NIOF52NLO/bundle.json","state_url":"https://pith.science/pith/TL5Q4JVJPLIU2FEC6NIOF52NLO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TL5Q4JVJPLIU2FEC6NIOF52NLO/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":"2026-05-30T13:07:20Z","links":{"resolver":"https://pith.science/pith/TL5Q4JVJPLIU2FEC6NIOF52NLO","bundle":"https://pith.science/pith/TL5Q4JVJPLIU2FEC6NIOF52NLO/bundle.json","state":"https://pith.science/pith/TL5Q4JVJPLIU2FEC6NIOF52NLO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TL5Q4JVJPLIU2FEC6NIOF52NLO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:TL5Q4JVJPLIU2FEC6NIOF52NLO","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":"ae84bedd2026e485b7016ef3e6cb75682921640cd96c7447cef0974298f643de","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-24T14:13:20Z","title_canon_sha256":"06be566b286edddd4dae42c7356fc768851fae493aa8ab4176e6e7951fdc9889"},"schema_version":"1.0","source":{"id":"1504.06517","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.06517","created_at":"2026-05-18T02:17:53Z"},{"alias_kind":"arxiv_version","alias_value":"1504.06517v1","created_at":"2026-05-18T02:17:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.06517","created_at":"2026-05-18T02:17:53Z"},{"alias_kind":"pith_short_12","alias_value":"TL5Q4JVJPLIU","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"TL5Q4JVJPLIU2FEC","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"TL5Q4JVJ","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:8d95a2c33fe80d2a5e01a0b169a7680a58d040029f868210a077adcc1bd2a98e","target":"graph","created_at":"2026-05-18T02:17:53Z","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":"We study the contribution of thermal and non-thermal processes to the inverse Compton emission of the radio galaxy M 87 by modelling its broad-band emission. Through this we aim to derive insight into where within the AGN the X-ray, gamma-ray, and VHE emission is produced. We have analysed all available INTEGRAL IBIS/ISGRI data on M 87, spanning almost 10 years, to set an upper limit to the average hard X-ray flux of $f(20 - 60 \\rm \\, keV) < 3\\times 10^{-12}$ $\\rm \\, erg \\, cm^{-2} \\, s^{-1}$, using several techniques beyond the standard analysis which are also presented here. We also analysed","authors_text":"A. Gros, A. Tramacere, S. de Jong, S. Soldi, V. Beckmann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-24T14:13:20Z","title":"High-energy Emission Processes in M 87"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.06517","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:de296d3601863632c9509ce10b114854ae6a48d2466435e3964e38280eeab90a","target":"record","created_at":"2026-05-18T02:17:53Z","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":"ae84bedd2026e485b7016ef3e6cb75682921640cd96c7447cef0974298f643de","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-24T14:13:20Z","title_canon_sha256":"06be566b286edddd4dae42c7356fc768851fae493aa8ab4176e6e7951fdc9889"},"schema_version":"1.0","source":{"id":"1504.06517","kind":"arxiv","version":1}},"canonical_sha256":"9afb0e26a97ad14d1482f350e2f74d5bafb24fffab969bd02c655598e28b55b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9afb0e26a97ad14d1482f350e2f74d5bafb24fffab969bd02c655598e28b55b0","first_computed_at":"2026-05-18T02:17:53.415575Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:53.415575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K6SosWVy8I8dXJGSjZfqj7hAMsOe8mUyTy7AhpEyvFwZ3Co36jw9FYpMHD67hwrq8UuRiLnHp13KJsG8KNYmCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:53.416141Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.06517","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de296d3601863632c9509ce10b114854ae6a48d2466435e3964e38280eeab90a","sha256:8d95a2c33fe80d2a5e01a0b169a7680a58d040029f868210a077adcc1bd2a98e"],"state_sha256":"c065cfb62cca8af8e97365435f4ae9d8a519304cf5b4755eef634ad97fd4b998"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5H6cI2gNIXdWSJpfhhFvBJ2MY8tFJ6uyAGULMJ7NfXa1uXMSnspgoplxhIwxUpJ03Pb0dEOUFf9uEB/p7s1hAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T13:07:20.482257Z","bundle_sha256":"44f9c747c7fe1f72dc5c0452860e1f4b8689048a005e232daa0a27ed3ff99b73"}}