{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:QV2CP6GUIMEX7JSDFZVTMJO5KT","short_pith_number":"pith:QV2CP6GU","canonical_record":{"source":{"id":"1111.2877","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-11-11T22:46:26Z","cross_cats_sorted":[],"title_canon_sha256":"eea15136f90a6c4c8baddbe79588073e19477b825a2d959d91380ec22edd6be7","abstract_canon_sha256":"396edbe37896fecb8f50982f78440e3cbe687eed93fa2506f36a071ef94f91bd"},"schema_version":"1.0"},"canonical_sha256":"857427f8d443097fa6432e6b3625dd54d1153b2f4829c7574f4ae07d0c7e149c","source":{"kind":"arxiv","id":"1111.2877","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.2877","created_at":"2026-05-18T01:59:39Z"},{"alias_kind":"arxiv_version","alias_value":"1111.2877v2","created_at":"2026-05-18T01:59:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.2877","created_at":"2026-05-18T01:59:39Z"},{"alias_kind":"pith_short_12","alias_value":"QV2CP6GUIMEX","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QV2CP6GUIMEX7JSD","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QV2CP6GU","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:QV2CP6GUIMEX7JSDFZVTMJO5KT","target":"record","payload":{"canonical_record":{"source":{"id":"1111.2877","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-11-11T22:46:26Z","cross_cats_sorted":[],"title_canon_sha256":"eea15136f90a6c4c8baddbe79588073e19477b825a2d959d91380ec22edd6be7","abstract_canon_sha256":"396edbe37896fecb8f50982f78440e3cbe687eed93fa2506f36a071ef94f91bd"},"schema_version":"1.0"},"canonical_sha256":"857427f8d443097fa6432e6b3625dd54d1153b2f4829c7574f4ae07d0c7e149c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:39.893686Z","signature_b64":"mB9FYQbWpr9KPkLVNcaeNbrINkj6JueFfmdGVER9yK7WPFh3IcCDPlHlfhHuWzHcgfGfL3ygL7dE2355GeoiBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"857427f8d443097fa6432e6b3625dd54d1153b2f4829c7574f4ae07d0c7e149c","last_reissued_at":"2026-05-18T01:59:39.893003Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:39.893003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.2877","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":"2026-05-18T01:59:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vZld9QZ/1KYD6RTfdBO+G9O81xPSXqkqTZ6pA9z773dhwLQIDolOOrwpDhUCVfsjE01GHoe0A5xjlRBI38kMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:47:50.456558Z"},"content_sha256":"71fe7e981b198b29219c0babdd52425aec2a6804dc872470d45600ba413fccdf","schema_version":"1.0","event_id":"sha256:71fe7e981b198b29219c0babdd52425aec2a6804dc872470d45600ba413fccdf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:QV2CP6GUIMEX7JSDFZVTMJO5KT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The X-ray Counterpart of the High-B Pulsar PSR J0726-2612","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"2), (2) Harvard College, 3), (3) corresponding author, (4) University of Toronto), D. L. Kaplan (1, J. S. Speagle (1, M. H. van Kerkwijk (4) ((1) University of Wisconsin-Milwaukee","submitted_at":"2011-11-11T22:46:26Z","abstract_excerpt":"Middle-aged, cooling neutron stars are observed both as relatively rapidly spinning radio pulsars and as more slowly spinning, strongly magnetized isolated neutron stars (INSs), which stand out by their thermal X-ray spectra. The difference between the two classes may be that the INSs initially had much stronger magnetic fields, which decayed. To test this, we used the Chandra X-ray Observatory to observe 1RXS J072559.8-261229, a possible X-ray counterpart to PSR J0726-2612, which, with its 3.44s period and 3e13G inferred magnetic field strength, is the nearest and least extincted among the po"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.2877","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":"2026-05-18T01:59:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"43o2DJ0lea3F/SLcIOM9wg+oQPHH/YYXHRmqjcROhI1U1BulcDmoIJQdWpifGJfnB4d4d8bsiiLA80aDEq5CBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:47:50.457309Z"},"content_sha256":"d2c914a3ce26de3c88c28facb9488427b5680db7e91f62b5af1d6a2ea63bb8f3","schema_version":"1.0","event_id":"sha256:d2c914a3ce26de3c88c28facb9488427b5680db7e91f62b5af1d6a2ea63bb8f3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QV2CP6GUIMEX7JSDFZVTMJO5KT/bundle.json","state_url":"https://pith.science/pith/QV2CP6GUIMEX7JSDFZVTMJO5KT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QV2CP6GUIMEX7JSDFZVTMJO5KT/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":"2026-05-25T16:47:50Z","links":{"resolver":"https://pith.science/pith/QV2CP6GUIMEX7JSDFZVTMJO5KT","bundle":"https://pith.science/pith/QV2CP6GUIMEX7JSDFZVTMJO5KT/bundle.json","state":"https://pith.science/pith/QV2CP6GUIMEX7JSDFZVTMJO5KT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QV2CP6GUIMEX7JSDFZVTMJO5KT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:QV2CP6GUIMEX7JSDFZVTMJO5KT","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":"396edbe37896fecb8f50982f78440e3cbe687eed93fa2506f36a071ef94f91bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-11-11T22:46:26Z","title_canon_sha256":"eea15136f90a6c4c8baddbe79588073e19477b825a2d959d91380ec22edd6be7"},"schema_version":"1.0","source":{"id":"1111.2877","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.2877","created_at":"2026-05-18T01:59:39Z"},{"alias_kind":"arxiv_version","alias_value":"1111.2877v2","created_at":"2026-05-18T01:59:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.2877","created_at":"2026-05-18T01:59:39Z"},{"alias_kind":"pith_short_12","alias_value":"QV2CP6GUIMEX","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QV2CP6GUIMEX7JSD","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QV2CP6GU","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:d2c914a3ce26de3c88c28facb9488427b5680db7e91f62b5af1d6a2ea63bb8f3","target":"graph","created_at":"2026-05-18T01:59:39Z","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":"Middle-aged, cooling neutron stars are observed both as relatively rapidly spinning radio pulsars and as more slowly spinning, strongly magnetized isolated neutron stars (INSs), which stand out by their thermal X-ray spectra. The difference between the two classes may be that the INSs initially had much stronger magnetic fields, which decayed. To test this, we used the Chandra X-ray Observatory to observe 1RXS J072559.8-261229, a possible X-ray counterpart to PSR J0726-2612, which, with its 3.44s period and 3e13G inferred magnetic field strength, is the nearest and least extincted among the po","authors_text":"2), (2) Harvard College, 3), (3) corresponding author, (4) University of Toronto), D. L. Kaplan (1, J. S. Speagle (1, M. H. van Kerkwijk (4) ((1) University of Wisconsin-Milwaukee","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-11-11T22:46:26Z","title":"The X-ray Counterpart of the High-B Pulsar PSR J0726-2612"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.2877","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":"sha256:71fe7e981b198b29219c0babdd52425aec2a6804dc872470d45600ba413fccdf","target":"record","created_at":"2026-05-18T01:59:39Z","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":"396edbe37896fecb8f50982f78440e3cbe687eed93fa2506f36a071ef94f91bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-11-11T22:46:26Z","title_canon_sha256":"eea15136f90a6c4c8baddbe79588073e19477b825a2d959d91380ec22edd6be7"},"schema_version":"1.0","source":{"id":"1111.2877","kind":"arxiv","version":2}},"canonical_sha256":"857427f8d443097fa6432e6b3625dd54d1153b2f4829c7574f4ae07d0c7e149c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"857427f8d443097fa6432e6b3625dd54d1153b2f4829c7574f4ae07d0c7e149c","first_computed_at":"2026-05-18T01:59:39.893003Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:39.893003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mB9FYQbWpr9KPkLVNcaeNbrINkj6JueFfmdGVER9yK7WPFh3IcCDPlHlfhHuWzHcgfGfL3ygL7dE2355GeoiBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:39.893686Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.2877","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:71fe7e981b198b29219c0babdd52425aec2a6804dc872470d45600ba413fccdf","sha256:d2c914a3ce26de3c88c28facb9488427b5680db7e91f62b5af1d6a2ea63bb8f3"],"state_sha256":"dfb96e1246db158d0c3fb62e47e76badfa7b068476ef6aa2db93c661d2734f0f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4A5Tmt8SwTkQfkvlJWNQ4QbDsem+nS5veaYKm3pAJBucYim0XQioA8/qY+RSPo+/VDUwtPilqgjQ3kMnQMO8Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:47:50.461773Z","bundle_sha256":"54a752513aa3a38ae22443de7716fc55bd4da67706b07aedbb130a78c7738e74"}}