{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:56OQJHOB72ORGZHKAZW74Y2PMP","short_pith_number":"pith:56OQJHOB","canonical_record":{"source":{"id":"1206.5149","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-06-22T14:01:02Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"3d524a1dd6374927de0f5a56ec645627652e62273743088e35d6cddff3f321cf","abstract_canon_sha256":"a7d99e1f74aa34728bd602e624707bc9a86957f2472a6ab1e7ee61647e4558c8"},"schema_version":"1.0"},"canonical_sha256":"ef9d049dc1fe9d1364ea066dfe634f63c3df7ede30236b40fbaa5481fa791fc7","source":{"kind":"arxiv","id":"1206.5149","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.5149","created_at":"2026-05-18T02:59:45Z"},{"alias_kind":"arxiv_version","alias_value":"1206.5149v1","created_at":"2026-05-18T02:59:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.5149","created_at":"2026-05-18T02:59:45Z"},{"alias_kind":"pith_short_12","alias_value":"56OQJHOB72OR","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"56OQJHOB72ORGZHK","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"56OQJHOB","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:56OQJHOB72ORGZHKAZW74Y2PMP","target":"record","payload":{"canonical_record":{"source":{"id":"1206.5149","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-06-22T14:01:02Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"3d524a1dd6374927de0f5a56ec645627652e62273743088e35d6cddff3f321cf","abstract_canon_sha256":"a7d99e1f74aa34728bd602e624707bc9a86957f2472a6ab1e7ee61647e4558c8"},"schema_version":"1.0"},"canonical_sha256":"ef9d049dc1fe9d1364ea066dfe634f63c3df7ede30236b40fbaa5481fa791fc7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:59:45.201050Z","signature_b64":"Mq2e/vigX+QsNi6LEgbMv10uD2XNsthMh0YczXHZW+ZElVCtDzkzNsIE7kjZ9T5/svMcmnaTKtpwJwln/28IDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ef9d049dc1fe9d1364ea066dfe634f63c3df7ede30236b40fbaa5481fa791fc7","last_reissued_at":"2026-05-18T02:59:45.200190Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:59:45.200190Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.5149","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":"2026-05-18T02:59:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1iuD1l9iUIABBNWqy2/ZhLkz7+lKhQEZ7eDCcvbY0Eypxbf7bMDVcZOJqztQh4dq2CvrHIkb4YdArkwb4YkaBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T08:31:42.915514Z"},"content_sha256":"b732f9954da8ef35abf125de808ef3ab5a22eb1d664247ea8f86bbf1acff5ccb","schema_version":"1.0","event_id":"sha256:b732f9954da8ef35abf125de808ef3ab5a22eb1d664247ea8f86bbf1acff5ccb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:56OQJHOB72ORGZHKAZW74Y2PMP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical observations of PSR J1357-6429 field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Aida Kirichenko, Andrey Danilenko, Dmitry Zyuzin, George Pavlov, Ronald E. Mennickent, Sergey Zharikov, Yury Shibanov","submitted_at":"2012-06-22T14:01:02Z","abstract_excerpt":"PSR J1357-6429 is a Vela-like radio pulsar that has been recently detected with Chandra and Fermi, which, like Vela, powers a compact X-ray pulsar wind nebula and X-ray-radio plerion associated with an extended TeV source. We present our deep optical observations with the Very Large Telescope to search for an optical counterpart of the pulsar and its nebula. We detected a point-like source in V, R, and I bands whose position is in agreement with the X-ray position of the pulsar, and whose colours are distinct from those of ordinary stars. The tentative optical luminosity and efficiency of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.5149","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":"2026-05-18T02:59:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WfqV9cbN40yQOBDpxgwoorekPpJ+dHTmAUL0KiIOkC+wXT7tdOKGDI64iZ1PLnL7XcEwZmVlRTSbTOhTpSVVBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T08:31:42.916198Z"},"content_sha256":"fa90f3fa132e1da3966ecb327a5aa5d91e9778c346948cce61ad3c43bff8e1cf","schema_version":"1.0","event_id":"sha256:fa90f3fa132e1da3966ecb327a5aa5d91e9778c346948cce61ad3c43bff8e1cf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/56OQJHOB72ORGZHKAZW74Y2PMP/bundle.json","state_url":"https://pith.science/pith/56OQJHOB72ORGZHKAZW74Y2PMP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/56OQJHOB72ORGZHKAZW74Y2PMP/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":"2026-05-23T08:31:42Z","links":{"resolver":"https://pith.science/pith/56OQJHOB72ORGZHKAZW74Y2PMP","bundle":"https://pith.science/pith/56OQJHOB72ORGZHKAZW74Y2PMP/bundle.json","state":"https://pith.science/pith/56OQJHOB72ORGZHKAZW74Y2PMP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/56OQJHOB72ORGZHKAZW74Y2PMP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:56OQJHOB72ORGZHKAZW74Y2PMP","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":"a7d99e1f74aa34728bd602e624707bc9a86957f2472a6ab1e7ee61647e4558c8","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-06-22T14:01:02Z","title_canon_sha256":"3d524a1dd6374927de0f5a56ec645627652e62273743088e35d6cddff3f321cf"},"schema_version":"1.0","source":{"id":"1206.5149","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.5149","created_at":"2026-05-18T02:59:45Z"},{"alias_kind":"arxiv_version","alias_value":"1206.5149v1","created_at":"2026-05-18T02:59:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.5149","created_at":"2026-05-18T02:59:45Z"},{"alias_kind":"pith_short_12","alias_value":"56OQJHOB72OR","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"56OQJHOB72ORGZHK","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"56OQJHOB","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:fa90f3fa132e1da3966ecb327a5aa5d91e9778c346948cce61ad3c43bff8e1cf","target":"graph","created_at":"2026-05-18T02:59:45Z","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":"PSR J1357-6429 is a Vela-like radio pulsar that has been recently detected with Chandra and Fermi, which, like Vela, powers a compact X-ray pulsar wind nebula and X-ray-radio plerion associated with an extended TeV source. We present our deep optical observations with the Very Large Telescope to search for an optical counterpart of the pulsar and its nebula. We detected a point-like source in V, R, and I bands whose position is in agreement with the X-ray position of the pulsar, and whose colours are distinct from those of ordinary stars. The tentative optical luminosity and efficiency of the ","authors_text":"Aida Kirichenko, Andrey Danilenko, Dmitry Zyuzin, George Pavlov, Ronald E. Mennickent, Sergey Zharikov, Yury Shibanov","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-06-22T14:01:02Z","title":"Optical observations of PSR J1357-6429 field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.5149","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:b732f9954da8ef35abf125de808ef3ab5a22eb1d664247ea8f86bbf1acff5ccb","target":"record","created_at":"2026-05-18T02:59:45Z","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":"a7d99e1f74aa34728bd602e624707bc9a86957f2472a6ab1e7ee61647e4558c8","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-06-22T14:01:02Z","title_canon_sha256":"3d524a1dd6374927de0f5a56ec645627652e62273743088e35d6cddff3f321cf"},"schema_version":"1.0","source":{"id":"1206.5149","kind":"arxiv","version":1}},"canonical_sha256":"ef9d049dc1fe9d1364ea066dfe634f63c3df7ede30236b40fbaa5481fa791fc7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef9d049dc1fe9d1364ea066dfe634f63c3df7ede30236b40fbaa5481fa791fc7","first_computed_at":"2026-05-18T02:59:45.200190Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:59:45.200190Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mq2e/vigX+QsNi6LEgbMv10uD2XNsthMh0YczXHZW+ZElVCtDzkzNsIE7kjZ9T5/svMcmnaTKtpwJwln/28IDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:59:45.201050Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.5149","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b732f9954da8ef35abf125de808ef3ab5a22eb1d664247ea8f86bbf1acff5ccb","sha256:fa90f3fa132e1da3966ecb327a5aa5d91e9778c346948cce61ad3c43bff8e1cf"],"state_sha256":"a298850762ddc2dee2ad08a7cc9ee096bbcafa7ec85c743d8d0959b04f2ca746"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Oi1IdAtelpujB3GcJyEV5miztszR3ZiV3r2fVwYaav+Iqgts3cJGupCB5HVI9FyaTctuoQEaPIbEKGzXLLTyAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T08:31:42.919770Z","bundle_sha256":"ef5375f06e6cb2b2a0eb765d6c9b75b6217206f82322f3bd8393fcb6511634ef"}}