{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:3FBICFQRC3GI6YXKPSDCIN72EW","short_pith_number":"pith:3FBICFQR","canonical_record":{"source":{"id":"1212.6815","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-31T04:04:52Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"ce891af2aa786327a7b4fbb50f4ac33664997052f62175446f898536938ea460","abstract_canon_sha256":"e3f45b216af83338c0f7a359da4accd4306400a6fd596748ea232e3e4100bbac"},"schema_version":"1.0"},"canonical_sha256":"d94281161116cc8f62ea7c862437fa25be13266e6b079ad73cf6eaa44d11c82c","source":{"kind":"arxiv","id":"1212.6815","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.6815","created_at":"2026-05-18T03:26:08Z"},{"alias_kind":"arxiv_version","alias_value":"1212.6815v2","created_at":"2026-05-18T03:26:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.6815","created_at":"2026-05-18T03:26:08Z"},{"alias_kind":"pith_short_12","alias_value":"3FBICFQRC3GI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3FBICFQRC3GI6YXK","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3FBICFQR","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:3FBICFQRC3GI6YXKPSDCIN72EW","target":"record","payload":{"canonical_record":{"source":{"id":"1212.6815","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-31T04:04:52Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"ce891af2aa786327a7b4fbb50f4ac33664997052f62175446f898536938ea460","abstract_canon_sha256":"e3f45b216af83338c0f7a359da4accd4306400a6fd596748ea232e3e4100bbac"},"schema_version":"1.0"},"canonical_sha256":"d94281161116cc8f62ea7c862437fa25be13266e6b079ad73cf6eaa44d11c82c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:26:08.660541Z","signature_b64":"PFcAqY/xR/3b+zioO3LBahHpIVX5Rtpfs6JYJc6HbG7OBJ/P2Q5fNk9njdEHEhrE05iAXDHAtb7X3kyju1d5DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d94281161116cc8f62ea7c862437fa25be13266e6b079ad73cf6eaa44d11c82c","last_reissued_at":"2026-05-18T03:26:08.659940Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:26:08.659940Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.6815","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":"2026-05-18T03:26:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QIP5CCEix1s9ZReAO9kpwDU3C0zKYOBYx5teR1ocpsjt4/UG7OLY6u836F1EaUvUOCr1+oxhA9o0bYGbw4+qCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:52:03.706926Z"},"content_sha256":"d75350b426153c3d4b2ea66186b06fc31353080a9d283ee4ea737cd886e7da4f","schema_version":"1.0","event_id":"sha256:d75350b426153c3d4b2ea66186b06fc31353080a9d283ee4ea737cd886e7da4f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:3FBICFQRC3GI6YXKPSDCIN72EW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraints on thawing scalar field models from fundamental constants","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Qing Gao, Yungui Gong","submitted_at":"2012-12-31T04:04:52Z","abstract_excerpt":"We consider a dark energy model with a relation between the equation of state parameter $w$ and the energy density parameter $\\Omega_\\phi$ derived from thawing scalar field models. Assuming the variation of the fine structure constant is caused by dark energy, we use the observational data of the variation of the fine structure constant to constrain the current value of $w_0$ and $\\Omega_{\\phi 0}$ for the dark energy model. At the $1\\sigma$ level, the observational data excluded some areas around $w_0=-1$, which explains the positive detection of the variation of the fine structure constant at"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.6815","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":"2026-05-18T03:26:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uxWmgiGygollUiJ6JCzoA9NpGIBZQcXYh2HgLT1ODWL1YlNbr9RzSv1wKrUUvm2VXmHfmgkvfJtuBYLYEicsAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:52:03.707304Z"},"content_sha256":"51160480a2beef2c233bf5c63835f2a14623ef7a44b36aa1407b1b7e682e5d81","schema_version":"1.0","event_id":"sha256:51160480a2beef2c233bf5c63835f2a14623ef7a44b36aa1407b1b7e682e5d81"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3FBICFQRC3GI6YXKPSDCIN72EW/bundle.json","state_url":"https://pith.science/pith/3FBICFQRC3GI6YXKPSDCIN72EW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3FBICFQRC3GI6YXKPSDCIN72EW/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":"2026-05-26T07:52:03Z","links":{"resolver":"https://pith.science/pith/3FBICFQRC3GI6YXKPSDCIN72EW","bundle":"https://pith.science/pith/3FBICFQRC3GI6YXKPSDCIN72EW/bundle.json","state":"https://pith.science/pith/3FBICFQRC3GI6YXKPSDCIN72EW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3FBICFQRC3GI6YXKPSDCIN72EW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:3FBICFQRC3GI6YXKPSDCIN72EW","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":"e3f45b216af83338c0f7a359da4accd4306400a6fd596748ea232e3e4100bbac","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-31T04:04:52Z","title_canon_sha256":"ce891af2aa786327a7b4fbb50f4ac33664997052f62175446f898536938ea460"},"schema_version":"1.0","source":{"id":"1212.6815","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.6815","created_at":"2026-05-18T03:26:08Z"},{"alias_kind":"arxiv_version","alias_value":"1212.6815v2","created_at":"2026-05-18T03:26:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.6815","created_at":"2026-05-18T03:26:08Z"},{"alias_kind":"pith_short_12","alias_value":"3FBICFQRC3GI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"3FBICFQRC3GI6YXK","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"3FBICFQR","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:51160480a2beef2c233bf5c63835f2a14623ef7a44b36aa1407b1b7e682e5d81","target":"graph","created_at":"2026-05-18T03:26:08Z","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":"We consider a dark energy model with a relation between the equation of state parameter $w$ and the energy density parameter $\\Omega_\\phi$ derived from thawing scalar field models. Assuming the variation of the fine structure constant is caused by dark energy, we use the observational data of the variation of the fine structure constant to constrain the current value of $w_0$ and $\\Omega_{\\phi 0}$ for the dark energy model. At the $1\\sigma$ level, the observational data excluded some areas around $w_0=-1$, which explains the positive detection of the variation of the fine structure constant at","authors_text":"Qing Gao, Yungui Gong","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-31T04:04:52Z","title":"Constraints on thawing scalar field models from fundamental constants"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.6815","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:d75350b426153c3d4b2ea66186b06fc31353080a9d283ee4ea737cd886e7da4f","target":"record","created_at":"2026-05-18T03:26:08Z","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":"e3f45b216af83338c0f7a359da4accd4306400a6fd596748ea232e3e4100bbac","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-12-31T04:04:52Z","title_canon_sha256":"ce891af2aa786327a7b4fbb50f4ac33664997052f62175446f898536938ea460"},"schema_version":"1.0","source":{"id":"1212.6815","kind":"arxiv","version":2}},"canonical_sha256":"d94281161116cc8f62ea7c862437fa25be13266e6b079ad73cf6eaa44d11c82c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d94281161116cc8f62ea7c862437fa25be13266e6b079ad73cf6eaa44d11c82c","first_computed_at":"2026-05-18T03:26:08.659940Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:26:08.659940Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PFcAqY/xR/3b+zioO3LBahHpIVX5Rtpfs6JYJc6HbG7OBJ/P2Q5fNk9njdEHEhrE05iAXDHAtb7X3kyju1d5DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:26:08.660541Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.6815","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d75350b426153c3d4b2ea66186b06fc31353080a9d283ee4ea737cd886e7da4f","sha256:51160480a2beef2c233bf5c63835f2a14623ef7a44b36aa1407b1b7e682e5d81"],"state_sha256":"8036f6ded3908b2b7c189357f3fe2f5f98c54e4cc645e76ca4198290ee505bcd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kN2QPum5Hx79jdyntlbhHRUKwWRsPVpDB5lYNAJUG9dgV3dvQseTxSPjH/YoKe33NbzC+2xJ60IeXq4RYpRKDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T07:52:03.709632Z","bundle_sha256":"9fb604921edfe7972ba181fea0ce68cb786e3390b550b53eaaa0d027e0a264dc"}}