{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:T3ESK3GZYAL5JJMOR65BP6ALYC","short_pith_number":"pith:T3ESK3GZ","canonical_record":{"source":{"id":"1202.4881","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-22T11:08:49Z","cross_cats_sorted":[],"title_canon_sha256":"d80971d5d300f85cac1398682359c5f22df1650b9d120d90380f7dd7431d2d0b","abstract_canon_sha256":"56a1ea8788b31d20a5b3585258c80d87f901216412cdae8fb8746ea7cb36fa90"},"schema_version":"1.0"},"canonical_sha256":"9ec9256cd9c017d4a58e8fba17f80bc0b248166ea5673dda4743271fdfb19d2c","source":{"kind":"arxiv","id":"1202.4881","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.4881","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"arxiv_version","alias_value":"1202.4881v1","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4881","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"pith_short_12","alias_value":"T3ESK3GZYAL5","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"T3ESK3GZYAL5JJMO","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"T3ESK3GZ","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:T3ESK3GZYAL5JJMOR65BP6ALYC","target":"record","payload":{"canonical_record":{"source":{"id":"1202.4881","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-22T11:08:49Z","cross_cats_sorted":[],"title_canon_sha256":"d80971d5d300f85cac1398682359c5f22df1650b9d120d90380f7dd7431d2d0b","abstract_canon_sha256":"56a1ea8788b31d20a5b3585258c80d87f901216412cdae8fb8746ea7cb36fa90"},"schema_version":"1.0"},"canonical_sha256":"9ec9256cd9c017d4a58e8fba17f80bc0b248166ea5673dda4743271fdfb19d2c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:22.493799Z","signature_b64":"ZruoOgiBPSGYOPbPrvkulyP72xSxrrXG+NEig0u8HKx6/SUvxpxir9MaySYJxmiPo0BggdOqit9wD5YG4yZTAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9ec9256cd9c017d4a58e8fba17f80bc0b248166ea5673dda4743271fdfb19d2c","last_reissued_at":"2026-05-18T01:58:22.493180Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:22.493180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.4881","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":"2026-05-18T01:58:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CziyeK2yTnpYqe2kZU9Y7ao2gQiax5km8mzoy6tmGPcnfd4QLGGtmxoT88X+FuFNpgvu5iEwTD83k37nwlndBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T14:20:34.617575Z"},"content_sha256":"2a061522990ae07f5a59083b553278f653e1fb45ead81137871b6273df55fdaf","schema_version":"1.0","event_id":"sha256:2a061522990ae07f5a59083b553278f653e1fb45ead81137871b6273df55fdaf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:T3ESK3GZYAL5JJMOR65BP6ALYC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Joint spectral-timing modelling of the hard lags in GX 339-4: constraints on reflection models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Joern Wilms, Juri Poutanen, Pablo Cassatella, Phil Uttley","submitted_at":"2012-02-22T11:08:49Z","abstract_excerpt":"The X-ray variations of hard state black hole X-ray binaries above 2 keV show 'hard lags', in that the variations at harder energies follow variations at softer energies, with a time-lag \\tau depending on frequency \\nu approximately as \\tau \\propto \\nu^{-0.7}. Several models have so far been proposed to explain this time delay, including fluctuations propagating through an accretion flow, spectral variations during coronal flares, Comptonisation in the extended hot corona or a jet, or time-delays due to large-scale reflection from the accretion disc. In principle these models can be used to pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4881","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":"2026-05-18T01:58:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X/vrKWRannRNGqQFvwIqaEe4rnfNHi6xsWJBuDUmJNum0Kq/BowvEsBiEOvlhj4Z/BoSQ3aRuJ3a88DZ0spJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T14:20:34.617922Z"},"content_sha256":"522e1841e7ebf2ef1d7fccfa582bb9ed0b0a5cef6dce73f6ead2243816a40f62","schema_version":"1.0","event_id":"sha256:522e1841e7ebf2ef1d7fccfa582bb9ed0b0a5cef6dce73f6ead2243816a40f62"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T3ESK3GZYAL5JJMOR65BP6ALYC/bundle.json","state_url":"https://pith.science/pith/T3ESK3GZYAL5JJMOR65BP6ALYC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T3ESK3GZYAL5JJMOR65BP6ALYC/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":"2026-06-03T14:20:34Z","links":{"resolver":"https://pith.science/pith/T3ESK3GZYAL5JJMOR65BP6ALYC","bundle":"https://pith.science/pith/T3ESK3GZYAL5JJMOR65BP6ALYC/bundle.json","state":"https://pith.science/pith/T3ESK3GZYAL5JJMOR65BP6ALYC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T3ESK3GZYAL5JJMOR65BP6ALYC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:T3ESK3GZYAL5JJMOR65BP6ALYC","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":"56a1ea8788b31d20a5b3585258c80d87f901216412cdae8fb8746ea7cb36fa90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-22T11:08:49Z","title_canon_sha256":"d80971d5d300f85cac1398682359c5f22df1650b9d120d90380f7dd7431d2d0b"},"schema_version":"1.0","source":{"id":"1202.4881","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.4881","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"arxiv_version","alias_value":"1202.4881v1","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4881","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"pith_short_12","alias_value":"T3ESK3GZYAL5","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"T3ESK3GZYAL5JJMO","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"T3ESK3GZ","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:522e1841e7ebf2ef1d7fccfa582bb9ed0b0a5cef6dce73f6ead2243816a40f62","target":"graph","created_at":"2026-05-18T01:58:22Z","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":"The X-ray variations of hard state black hole X-ray binaries above 2 keV show 'hard lags', in that the variations at harder energies follow variations at softer energies, with a time-lag \\tau depending on frequency \\nu approximately as \\tau \\propto \\nu^{-0.7}. Several models have so far been proposed to explain this time delay, including fluctuations propagating through an accretion flow, spectral variations during coronal flares, Comptonisation in the extended hot corona or a jet, or time-delays due to large-scale reflection from the accretion disc. In principle these models can be used to pr","authors_text":"Joern Wilms, Juri Poutanen, Pablo Cassatella, Phil Uttley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-22T11:08:49Z","title":"Joint spectral-timing modelling of the hard lags in GX 339-4: constraints on reflection models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4881","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":"sha256:2a061522990ae07f5a59083b553278f653e1fb45ead81137871b6273df55fdaf","target":"record","created_at":"2026-05-18T01:58:22Z","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":"56a1ea8788b31d20a5b3585258c80d87f901216412cdae8fb8746ea7cb36fa90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-02-22T11:08:49Z","title_canon_sha256":"d80971d5d300f85cac1398682359c5f22df1650b9d120d90380f7dd7431d2d0b"},"schema_version":"1.0","source":{"id":"1202.4881","kind":"arxiv","version":1}},"canonical_sha256":"9ec9256cd9c017d4a58e8fba17f80bc0b248166ea5673dda4743271fdfb19d2c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9ec9256cd9c017d4a58e8fba17f80bc0b248166ea5673dda4743271fdfb19d2c","first_computed_at":"2026-05-18T01:58:22.493180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:22.493180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZruoOgiBPSGYOPbPrvkulyP72xSxrrXG+NEig0u8HKx6/SUvxpxir9MaySYJxmiPo0BggdOqit9wD5YG4yZTAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:22.493799Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.4881","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a061522990ae07f5a59083b553278f653e1fb45ead81137871b6273df55fdaf","sha256:522e1841e7ebf2ef1d7fccfa582bb9ed0b0a5cef6dce73f6ead2243816a40f62"],"state_sha256":"8872993c3731c745623d6f21c652f2b7cbc5a101dd1a12296900eb6bc4802784"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UHY/SRzqXniub+bCLyN3FB0k7kTI1OoSb50Rw37UAy2VDXzaErPJZ7ry/rliDeLbVNligqH+WYtvCuS/Ze9sDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T14:20:34.619836Z","bundle_sha256":"da96ca68f0ac4b6ee9c7b4b7287a902ec504756d3a79a2ff22af0d5448416d7a"}}