{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:SNKCRWJYSDNXIJVIOMNFER2IAD","short_pith_number":"pith:SNKCRWJY","canonical_record":{"source":{"id":"1406.0488","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T19:34:55Z","cross_cats_sorted":[],"title_canon_sha256":"e4d239918b665084495d7620c14be77aefeefbd8da27ddc9c9ccbc2e343dcf1e","abstract_canon_sha256":"ae82d4f3341b8547cc60ec88f5838dbc795340ef4cbe55d5d1612ebef139ffce"},"schema_version":"1.0"},"canonical_sha256":"935428d93890db7426a8731a52474800d77906818638bab1699a7054a6306aa6","source":{"kind":"arxiv","id":"1406.0488","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.0488","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"arxiv_version","alias_value":"1406.0488v1","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.0488","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"pith_short_12","alias_value":"SNKCRWJYSDNX","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SNKCRWJYSDNXIJVI","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SNKCRWJY","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:SNKCRWJYSDNXIJVIOMNFER2IAD","target":"record","payload":{"canonical_record":{"source":{"id":"1406.0488","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T19:34:55Z","cross_cats_sorted":[],"title_canon_sha256":"e4d239918b665084495d7620c14be77aefeefbd8da27ddc9c9ccbc2e343dcf1e","abstract_canon_sha256":"ae82d4f3341b8547cc60ec88f5838dbc795340ef4cbe55d5d1612ebef139ffce"},"schema_version":"1.0"},"canonical_sha256":"935428d93890db7426a8731a52474800d77906818638bab1699a7054a6306aa6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:02.828349Z","signature_b64":"/TZD7j9+OXOE7oajr1x8QxU+mPdmP+CF2P/5OAStZjUYkAvcQpzv8fMIGX01Vdp7jprm3nTnEQ8Cp9np8CdMBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"935428d93890db7426a8731a52474800d77906818638bab1699a7054a6306aa6","last_reissued_at":"2026-05-18T01:43:02.827981Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:02.827981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1406.0488","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":"2026-05-18T01:43:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mgeZYaahMgy0TABSA6jPTDXpXyik4Lifl+RPKMRuP3WdBw6tOkdWPQW/hq29aUxpAG8hASvfYyz8wl+nMrFjCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:57:38.574661Z"},"content_sha256":"40a4996b2e9cdb5f0d43ace476bd24f2f638118356b0ad64a82b8a338ed6e99f","schema_version":"1.0","event_id":"sha256:40a4996b2e9cdb5f0d43ace476bd24f2f638118356b0ad64a82b8a338ed6e99f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:SNKCRWJYSDNXIJVIOMNFER2IAD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A 1.05 $M_\\odot$ Companion to PSR J2222-0137: The Coolest Known White Dwarf?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Adam T. Deller, Bart H. Dunlap, David L. Kaplan, Duncan R. Lorimer, Jason Boyles, Maura A. McLaughlin, Scott M. Ransom, Shriharsh P. Tendulkar","submitted_at":"2014-06-02T19:34:55Z","abstract_excerpt":"The recycled pulsar PSR J2222-0137 is one of the closest known neutron stars, with a parallax distance of $267_{-0.9}^{+1.2}\\,$pc and an edge-on orbit. We measure the Shapiro delay in the system through pulsar timing with the Green Bank Telescope, deriving a low pulsar mass ($1.20\\pm0.14$ $M_\\odot$) and a high companion mass ($1.05\\pm0.06$ $M_\\odot$) consistent with either a low-mass neutron star or a high-mass white dwarf. We can largely reject the neutron star hypothesis on the basis of the system's extremely low eccentricity (3e-4) - too low to have been the product of two supernovae under "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.0488","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":"2026-05-18T01:43:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ycdx9dMftRt3oI7+dl8lSfVySzqu45e/c3Cpc3hLSFYh61W1/dC/Q9OzfcMB+bBKYpcv1j+gwzN/mI0hdEuAAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:57:38.575130Z"},"content_sha256":"2e7f49b2765a4d44dbb00968dc5362d1c3cb72949f2cd60f333a5dd1d9454b87","schema_version":"1.0","event_id":"sha256:2e7f49b2765a4d44dbb00968dc5362d1c3cb72949f2cd60f333a5dd1d9454b87"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SNKCRWJYSDNXIJVIOMNFER2IAD/bundle.json","state_url":"https://pith.science/pith/SNKCRWJYSDNXIJVIOMNFER2IAD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SNKCRWJYSDNXIJVIOMNFER2IAD/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":"2026-05-28T07:57:38Z","links":{"resolver":"https://pith.science/pith/SNKCRWJYSDNXIJVIOMNFER2IAD","bundle":"https://pith.science/pith/SNKCRWJYSDNXIJVIOMNFER2IAD/bundle.json","state":"https://pith.science/pith/SNKCRWJYSDNXIJVIOMNFER2IAD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SNKCRWJYSDNXIJVIOMNFER2IAD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:SNKCRWJYSDNXIJVIOMNFER2IAD","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":"ae82d4f3341b8547cc60ec88f5838dbc795340ef4cbe55d5d1612ebef139ffce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T19:34:55Z","title_canon_sha256":"e4d239918b665084495d7620c14be77aefeefbd8da27ddc9c9ccbc2e343dcf1e"},"schema_version":"1.0","source":{"id":"1406.0488","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.0488","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"arxiv_version","alias_value":"1406.0488v1","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.0488","created_at":"2026-05-18T01:43:02Z"},{"alias_kind":"pith_short_12","alias_value":"SNKCRWJYSDNX","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SNKCRWJYSDNXIJVI","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SNKCRWJY","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:2e7f49b2765a4d44dbb00968dc5362d1c3cb72949f2cd60f333a5dd1d9454b87","target":"graph","created_at":"2026-05-18T01:43:02Z","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 recycled pulsar PSR J2222-0137 is one of the closest known neutron stars, with a parallax distance of $267_{-0.9}^{+1.2}\\,$pc and an edge-on orbit. We measure the Shapiro delay in the system through pulsar timing with the Green Bank Telescope, deriving a low pulsar mass ($1.20\\pm0.14$ $M_\\odot$) and a high companion mass ($1.05\\pm0.06$ $M_\\odot$) consistent with either a low-mass neutron star or a high-mass white dwarf. We can largely reject the neutron star hypothesis on the basis of the system's extremely low eccentricity (3e-4) - too low to have been the product of two supernovae under ","authors_text":"Adam T. Deller, Bart H. Dunlap, David L. Kaplan, Duncan R. Lorimer, Jason Boyles, Maura A. McLaughlin, Scott M. Ransom, Shriharsh P. Tendulkar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T19:34:55Z","title":"A 1.05 $M_\\odot$ Companion to PSR J2222-0137: The Coolest Known White Dwarf?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.0488","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":"sha256:40a4996b2e9cdb5f0d43ace476bd24f2f638118356b0ad64a82b8a338ed6e99f","target":"record","created_at":"2026-05-18T01:43:02Z","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":"ae82d4f3341b8547cc60ec88f5838dbc795340ef4cbe55d5d1612ebef139ffce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-02T19:34:55Z","title_canon_sha256":"e4d239918b665084495d7620c14be77aefeefbd8da27ddc9c9ccbc2e343dcf1e"},"schema_version":"1.0","source":{"id":"1406.0488","kind":"arxiv","version":1}},"canonical_sha256":"935428d93890db7426a8731a52474800d77906818638bab1699a7054a6306aa6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"935428d93890db7426a8731a52474800d77906818638bab1699a7054a6306aa6","first_computed_at":"2026-05-18T01:43:02.827981Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:02.827981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/TZD7j9+OXOE7oajr1x8QxU+mPdmP+CF2P/5OAStZjUYkAvcQpzv8fMIGX01Vdp7jprm3nTnEQ8Cp9np8CdMBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:02.828349Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.0488","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40a4996b2e9cdb5f0d43ace476bd24f2f638118356b0ad64a82b8a338ed6e99f","sha256:2e7f49b2765a4d44dbb00968dc5362d1c3cb72949f2cd60f333a5dd1d9454b87"],"state_sha256":"4acea9babbee5dba2c218dc9193dd950e4fe6465cc46da48453b07888ec0e52f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ir0zo0VcmsHk/AUfrZYhuXpLBFRBTOPcAlok2kLt623yDHpXz38uAPVRdQNNqPSIAnUHJ34QwBB1CzrkoIYjCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:57:38.577275Z","bundle_sha256":"d152129fb27ef0e18e98369cfebba733e181bbeb4f346e1b04e886725c90e8bc"}}