{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:NYU5344AQNYQUALPZAJJECK5M5","short_pith_number":"pith:NYU5344A","canonical_record":{"source":{"id":"1412.3418","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-10T19:19:29Z","cross_cats_sorted":[],"title_canon_sha256":"42c247e08b3fc77b0c4c3c27d2542599e3a7ea67b14629333221b4e53546dca9","abstract_canon_sha256":"7214c5b2d4d73c5704a4829aef55992688a2899af9211658ef7e3f5b178e26ab"},"schema_version":"1.0"},"canonical_sha256":"6e29ddf38083710a016fc81292095d6768f23bb23b872835c3f5d0a694492084","source":{"kind":"arxiv","id":"1412.3418","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3418","created_at":"2026-05-18T02:18:13Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3418v2","created_at":"2026-05-18T02:18:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3418","created_at":"2026-05-18T02:18:13Z"},{"alias_kind":"pith_short_12","alias_value":"NYU5344AQNYQ","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NYU5344AQNYQUALP","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NYU5344A","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:NYU5344AQNYQUALPZAJJECK5M5","target":"record","payload":{"canonical_record":{"source":{"id":"1412.3418","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-10T19:19:29Z","cross_cats_sorted":[],"title_canon_sha256":"42c247e08b3fc77b0c4c3c27d2542599e3a7ea67b14629333221b4e53546dca9","abstract_canon_sha256":"7214c5b2d4d73c5704a4829aef55992688a2899af9211658ef7e3f5b178e26ab"},"schema_version":"1.0"},"canonical_sha256":"6e29ddf38083710a016fc81292095d6768f23bb23b872835c3f5d0a694492084","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:18:13.425692Z","signature_b64":"PZVgbFGljCvRT3Lqklf9QWsMOiF2rmS9c3jcC0JOjNTkbcPikLTkOjeLFYluSs5qh21bVbq7S0+tPqmfTiOiBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e29ddf38083710a016fc81292095d6768f23bb23b872835c3f5d0a694492084","last_reissued_at":"2026-05-18T02:18:13.425304Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:18:13.425304Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.3418","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":"2026-05-18T02:18:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HwIi9Wbq1lMAIBPn56wzYusNG1e2G+Bhuch7xGqCbbnuFIpsYYWK0qzwLfolWwwlw3sJ72nYX18USWfS2in+CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T18:43:28.762144Z"},"content_sha256":"e7565cb19221cea22435808bb1e657918d5fb0b0b2c4eca795ed49a8ea1cc455","schema_version":"1.0","event_id":"sha256:e7565cb19221cea22435808bb1e657918d5fb0b0b2c4eca795ed49a8ea1cc455"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:NYU5344AQNYQUALPZAJJECK5M5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The variation of the fine structure constant: testing the dipole model with thermonuclear supernovae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Carolina Negrelli, Enrique Garc\\'ia-Berro, Lucila Kraiselburd, Susana J. Landau","submitted_at":"2014-12-10T19:19:29Z","abstract_excerpt":"The large-number hypothesis conjectures that fundamental constants may vary. Accordingly, the spacetime variation of fundamental constants has been an active subject of research for decades. Recently, using data obtained with large telescopes a phenomenological model in which the fine structure constant might vary spatially has been proposed. We test whether this hypothetical spatial variation of {\\alpha}, which follows a dipole law, is compatible with the data of distant thermonuclear supernovae. Unlike previous works, in our calculations we consider not only the variation of the luminosity d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3418","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":"2026-05-18T02:18:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k6R7eAUUwZCeyh2LX4Zq+JP1gDtBZB2CaXZ/xUgReFHOCst35jyteSeBijYM+ihkmVrDy78NCXwA+N94uCf/CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T18:43:28.762696Z"},"content_sha256":"578fe51f4fc3ad30d2de7a8f983e329addcf46076e4de65bae1585a34174330d","schema_version":"1.0","event_id":"sha256:578fe51f4fc3ad30d2de7a8f983e329addcf46076e4de65bae1585a34174330d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NYU5344AQNYQUALPZAJJECK5M5/bundle.json","state_url":"https://pith.science/pith/NYU5344AQNYQUALPZAJJECK5M5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NYU5344AQNYQUALPZAJJECK5M5/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":"2026-06-07T18:43:28Z","links":{"resolver":"https://pith.science/pith/NYU5344AQNYQUALPZAJJECK5M5","bundle":"https://pith.science/pith/NYU5344AQNYQUALPZAJJECK5M5/bundle.json","state":"https://pith.science/pith/NYU5344AQNYQUALPZAJJECK5M5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NYU5344AQNYQUALPZAJJECK5M5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:NYU5344AQNYQUALPZAJJECK5M5","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":"7214c5b2d4d73c5704a4829aef55992688a2899af9211658ef7e3f5b178e26ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-10T19:19:29Z","title_canon_sha256":"42c247e08b3fc77b0c4c3c27d2542599e3a7ea67b14629333221b4e53546dca9"},"schema_version":"1.0","source":{"id":"1412.3418","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3418","created_at":"2026-05-18T02:18:13Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3418v2","created_at":"2026-05-18T02:18:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3418","created_at":"2026-05-18T02:18:13Z"},{"alias_kind":"pith_short_12","alias_value":"NYU5344AQNYQ","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NYU5344AQNYQUALP","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NYU5344A","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:578fe51f4fc3ad30d2de7a8f983e329addcf46076e4de65bae1585a34174330d","target":"graph","created_at":"2026-05-18T02:18:13Z","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 large-number hypothesis conjectures that fundamental constants may vary. Accordingly, the spacetime variation of fundamental constants has been an active subject of research for decades. Recently, using data obtained with large telescopes a phenomenological model in which the fine structure constant might vary spatially has been proposed. We test whether this hypothetical spatial variation of {\\alpha}, which follows a dipole law, is compatible with the data of distant thermonuclear supernovae. Unlike previous works, in our calculations we consider not only the variation of the luminosity d","authors_text":"Carolina Negrelli, Enrique Garc\\'ia-Berro, Lucila Kraiselburd, Susana J. Landau","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-10T19:19:29Z","title":"The variation of the fine structure constant: testing the dipole model with thermonuclear supernovae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3418","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:e7565cb19221cea22435808bb1e657918d5fb0b0b2c4eca795ed49a8ea1cc455","target":"record","created_at":"2026-05-18T02:18:13Z","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":"7214c5b2d4d73c5704a4829aef55992688a2899af9211658ef7e3f5b178e26ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-10T19:19:29Z","title_canon_sha256":"42c247e08b3fc77b0c4c3c27d2542599e3a7ea67b14629333221b4e53546dca9"},"schema_version":"1.0","source":{"id":"1412.3418","kind":"arxiv","version":2}},"canonical_sha256":"6e29ddf38083710a016fc81292095d6768f23bb23b872835c3f5d0a694492084","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e29ddf38083710a016fc81292095d6768f23bb23b872835c3f5d0a694492084","first_computed_at":"2026-05-18T02:18:13.425304Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:13.425304Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PZVgbFGljCvRT3Lqklf9QWsMOiF2rmS9c3jcC0JOjNTkbcPikLTkOjeLFYluSs5qh21bVbq7S0+tPqmfTiOiBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:13.425692Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.3418","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e7565cb19221cea22435808bb1e657918d5fb0b0b2c4eca795ed49a8ea1cc455","sha256:578fe51f4fc3ad30d2de7a8f983e329addcf46076e4de65bae1585a34174330d"],"state_sha256":"a983f1ec3d08315f484b5cf751367e022f3ad69f681ac7eb10e3a1ab82b32f3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Y4UkRHaGbQRdaP4HmBT2aPdknJZtEiRcVOHzy6c31GVCzbi2DbCf+uCcVHFOYNK6n5tUyxTq782oqzbh1IxCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T18:43:28.766349Z","bundle_sha256":"89cf6eaa411cda3216286b38acd472024a4dbf82d47da905178216a450ad8382"}}