{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:BJC7V4B2NCKABIRE3OHJSYNVVO","short_pith_number":"pith:BJC7V4B2","canonical_record":{"source":{"id":"1605.05914","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-19T12:23:10Z","cross_cats_sorted":[],"title_canon_sha256":"f4d8e201606161c17c6ec340bb93f7d3d6478e73438cda3a3c511c698fc2ee01","abstract_canon_sha256":"a6bc567726ed725f9d042b09b86ed2c8912410b99a3d8c6dbbdc9d59729597c3"},"schema_version":"1.0"},"canonical_sha256":"0a45faf03a689400a224db8e9961b5ababd7675194411db219e44c1bb40602d4","source":{"kind":"arxiv","id":"1605.05914","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.05914","created_at":"2026-05-18T00:56:20Z"},{"alias_kind":"arxiv_version","alias_value":"1605.05914v2","created_at":"2026-05-18T00:56:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.05914","created_at":"2026-05-18T00:56:20Z"},{"alias_kind":"pith_short_12","alias_value":"BJC7V4B2NCKA","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"BJC7V4B2NCKABIRE","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"BJC7V4B2","created_at":"2026-05-18T12:30:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:BJC7V4B2NCKABIRE3OHJSYNVVO","target":"record","payload":{"canonical_record":{"source":{"id":"1605.05914","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-19T12:23:10Z","cross_cats_sorted":[],"title_canon_sha256":"f4d8e201606161c17c6ec340bb93f7d3d6478e73438cda3a3c511c698fc2ee01","abstract_canon_sha256":"a6bc567726ed725f9d042b09b86ed2c8912410b99a3d8c6dbbdc9d59729597c3"},"schema_version":"1.0"},"canonical_sha256":"0a45faf03a689400a224db8e9961b5ababd7675194411db219e44c1bb40602d4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:56:20.575865Z","signature_b64":"5DYkRKsoqcFHOB8AOcBWycBTXdf+RKwLqDOiJYBWRSreDecacfWma9/c/upOCTEEIKLT+BqhKP9nOmQm2nWDAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a45faf03a689400a224db8e9961b5ababd7675194411db219e44c1bb40602d4","last_reissued_at":"2026-05-18T00:56:20.575090Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:56:20.575090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.05914","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":"2026-05-18T00:56:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qyC+2/ew2+h5N3wR8k4atPPp8Fux2Un47WKz53dkMMaecQr82Me1+GOaB6RRhe3M5GoC2cJbwpbLRjq/v0KaBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:52:07.590377Z"},"content_sha256":"d9abb2f309ab2a8554dd0e12dc22b1fe76e66f68b205bbae543a7474b64cb343","schema_version":"1.0","event_id":"sha256:d9abb2f309ab2a8554dd0e12dc22b1fe76e66f68b205bbae543a7474b64cb343"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:BJC7V4B2NCKABIRE3OHJSYNVVO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of gamma rays of likely jet origin in Cygnus X-1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Alba Fern\\'andez-Barral, Daniel Galindo, Emma de O\\~na-Wilhelmi, Felix Aharonian, Oscar Blanch, Roberta Zanin, Valent\\'i Bosch-Ramon","submitted_at":"2016-05-19T12:23:10Z","abstract_excerpt":"Aims: Probe the high-energy ($>$60 MeV) emission from the black hole X-ray binary system, Cygnus X-1, and investigate its origin. Methods: We analysed 7.5 yr of data by Fermi/LAT with the latest PASS8 software version. Results: We report the detection of a signal at $\\sim$8 $\\sigma$ statistical significance spatially coincident with Cygnus X-1 and a luminosity above 60 MeV of 5.5$\\times$10$^{33}$ erg s$^{-1}$. The signal is correlated with the hard X-ray flux: the source is observed at high energies only during the hard X-ray spectral state, when the source is known to display persistent, rela"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.05914","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":"2026-05-18T00:56:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j0139mKukWgPbYGh8KhGN8zYBwHrOqquJ8eal2eX3ljVPxiD3dncrwDynznjvWlja6EgkYke0y9eVW1mt7csCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:52:07.591038Z"},"content_sha256":"0dfe2b9ba59ff29f3cd42f8cff9ac18180a6397a83f04a541c21c5968e843a1d","schema_version":"1.0","event_id":"sha256:0dfe2b9ba59ff29f3cd42f8cff9ac18180a6397a83f04a541c21c5968e843a1d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BJC7V4B2NCKABIRE3OHJSYNVVO/bundle.json","state_url":"https://pith.science/pith/BJC7V4B2NCKABIRE3OHJSYNVVO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BJC7V4B2NCKABIRE3OHJSYNVVO/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":"2026-05-27T05:52:07Z","links":{"resolver":"https://pith.science/pith/BJC7V4B2NCKABIRE3OHJSYNVVO","bundle":"https://pith.science/pith/BJC7V4B2NCKABIRE3OHJSYNVVO/bundle.json","state":"https://pith.science/pith/BJC7V4B2NCKABIRE3OHJSYNVVO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BJC7V4B2NCKABIRE3OHJSYNVVO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:BJC7V4B2NCKABIRE3OHJSYNVVO","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":"a6bc567726ed725f9d042b09b86ed2c8912410b99a3d8c6dbbdc9d59729597c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-19T12:23:10Z","title_canon_sha256":"f4d8e201606161c17c6ec340bb93f7d3d6478e73438cda3a3c511c698fc2ee01"},"schema_version":"1.0","source":{"id":"1605.05914","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.05914","created_at":"2026-05-18T00:56:20Z"},{"alias_kind":"arxiv_version","alias_value":"1605.05914v2","created_at":"2026-05-18T00:56:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.05914","created_at":"2026-05-18T00:56:20Z"},{"alias_kind":"pith_short_12","alias_value":"BJC7V4B2NCKA","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"BJC7V4B2NCKABIRE","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"BJC7V4B2","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:0dfe2b9ba59ff29f3cd42f8cff9ac18180a6397a83f04a541c21c5968e843a1d","target":"graph","created_at":"2026-05-18T00:56:20Z","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":"Aims: Probe the high-energy ($>$60 MeV) emission from the black hole X-ray binary system, Cygnus X-1, and investigate its origin. Methods: We analysed 7.5 yr of data by Fermi/LAT with the latest PASS8 software version. Results: We report the detection of a signal at $\\sim$8 $\\sigma$ statistical significance spatially coincident with Cygnus X-1 and a luminosity above 60 MeV of 5.5$\\times$10$^{33}$ erg s$^{-1}$. The signal is correlated with the hard X-ray flux: the source is observed at high energies only during the hard X-ray spectral state, when the source is known to display persistent, rela","authors_text":"Alba Fern\\'andez-Barral, Daniel Galindo, Emma de O\\~na-Wilhelmi, Felix Aharonian, Oscar Blanch, Roberta Zanin, Valent\\'i Bosch-Ramon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-19T12:23:10Z","title":"Detection of gamma rays of likely jet origin in Cygnus X-1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.05914","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:d9abb2f309ab2a8554dd0e12dc22b1fe76e66f68b205bbae543a7474b64cb343","target":"record","created_at":"2026-05-18T00:56:20Z","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":"a6bc567726ed725f9d042b09b86ed2c8912410b99a3d8c6dbbdc9d59729597c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-19T12:23:10Z","title_canon_sha256":"f4d8e201606161c17c6ec340bb93f7d3d6478e73438cda3a3c511c698fc2ee01"},"schema_version":"1.0","source":{"id":"1605.05914","kind":"arxiv","version":2}},"canonical_sha256":"0a45faf03a689400a224db8e9961b5ababd7675194411db219e44c1bb40602d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a45faf03a689400a224db8e9961b5ababd7675194411db219e44c1bb40602d4","first_computed_at":"2026-05-18T00:56:20.575090Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:56:20.575090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5DYkRKsoqcFHOB8AOcBWycBTXdf+RKwLqDOiJYBWRSreDecacfWma9/c/upOCTEEIKLT+BqhKP9nOmQm2nWDAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:56:20.575865Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.05914","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9abb2f309ab2a8554dd0e12dc22b1fe76e66f68b205bbae543a7474b64cb343","sha256:0dfe2b9ba59ff29f3cd42f8cff9ac18180a6397a83f04a541c21c5968e843a1d"],"state_sha256":"b2702e34330e28f47b211f572cf5bc39cc060cb3da3005d440a0529789784dce"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JrFRW0JJdoTP0/DhLlPJRCkQ+VUnjYSZzUk5hsEVkTUwvwMK/RhWsXY9yPjSJI1kIG3Gb7MC3x92MnuL1UlpDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T05:52:07.594420Z","bundle_sha256":"dafc846c6189ef1da3275fc513e4d4a83c5da9675f31f289e4593d1bd8942bc0"}}