{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:SLR5NLFILZV5FK2WEQW6GC2K44","short_pith_number":"pith:SLR5NLFI","canonical_record":{"source":{"id":"2202.09453","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2022-02-18T22:19:35Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"f0ab957d50f4f60fde3979c1059b4e1c550264959ca6236a21126124e146305d","abstract_canon_sha256":"bbd0e464cc22fe29fe636d1e01c5e7f5132a0e5f1b29c7665c004f52b2b29920"},"schema_version":"1.0"},"canonical_sha256":"92e3d6aca85e6bd2ab56242de30b4ae70f1ee37b0b451fd5a8cf20d9657ea07e","source":{"kind":"arxiv","id":"2202.09453","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.09453","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"2202.09453v1","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.09453","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"SLR5NLFILZV5","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"pith_short_16","alias_value":"SLR5NLFILZV5FK2W","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"pith_short_8","alias_value":"SLR5NLFI","created_at":"2026-07-05T04:52:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:SLR5NLFILZV5FK2WEQW6GC2K44","target":"record","payload":{"canonical_record":{"source":{"id":"2202.09453","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2022-02-18T22:19:35Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"f0ab957d50f4f60fde3979c1059b4e1c550264959ca6236a21126124e146305d","abstract_canon_sha256":"bbd0e464cc22fe29fe636d1e01c5e7f5132a0e5f1b29c7665c004f52b2b29920"},"schema_version":"1.0"},"canonical_sha256":"92e3d6aca85e6bd2ab56242de30b4ae70f1ee37b0b451fd5a8cf20d9657ea07e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:52:48.946477Z","signature_b64":"egrqL4Sv5A4TdQrd0jd8tRdz+asaBQNbPtZmNB2ZthKLK6jMOiNt2O2i5pFSIEVmKZddwLqH3nkvHgIvfri+AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"92e3d6aca85e6bd2ab56242de30b4ae70f1ee37b0b451fd5a8cf20d9657ea07e","last_reissued_at":"2026-07-05T04:52:48.946033Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:52:48.946033Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2202.09453","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":"2026-07-05T04:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8YXT9cYj5MERRiYoWbG39o4FRiQLhIVS8F/6seVhfWUUcEoka+KEi2IPjS4wHbJMIVoQP8L3I3ufQEhUMfQuDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T09:32:39.911853Z"},"content_sha256":"420727ac76b9b99987f06f1ed753c71f9467b5f8dd0e206443c739717f4b688f","schema_version":"1.0","event_id":"sha256:420727ac76b9b99987f06f1ed753c71f9467b5f8dd0e206443c739717f4b688f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:SLR5NLFILZV5FK2WEQW6GC2K44","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cosmic acceleration in Regge-Teitelboim gravity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"A. Stern, Chuang Xu, S. Fabi","submitted_at":"2022-02-18T22:19:35Z","abstract_excerpt":"The Regge-Teitelboim formulation of gravity, which utilizes dynamical embeddings in a background space, effectively introduces source terms in the standard Einstein equations that are not attributable to the energy-momentum tensor. We show that for a simple class of embeddings of the Robertson-Walker metric, these source terms naturally generate cosmic acceleration."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.09453","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2202.09453/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:52:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Mj+6v9udi2Vc7lubiDvn6dZJ5Bp7/4IBSigiKcbSphW1Ac6WWfTXyT2+s8SLTc/rarnApUK2dCkdN9qogZUCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T09:32:39.912354Z"},"content_sha256":"1db5455d5163c3797600738b9e0d88add8771352ee3ec9970c0c9dc465c23467","schema_version":"1.0","event_id":"sha256:1db5455d5163c3797600738b9e0d88add8771352ee3ec9970c0c9dc465c23467"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SLR5NLFILZV5FK2WEQW6GC2K44/bundle.json","state_url":"https://pith.science/pith/SLR5NLFILZV5FK2WEQW6GC2K44/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SLR5NLFILZV5FK2WEQW6GC2K44/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":"2026-08-10T09:32:39Z","links":{"resolver":"https://pith.science/pith/SLR5NLFILZV5FK2WEQW6GC2K44","bundle":"https://pith.science/pith/SLR5NLFILZV5FK2WEQW6GC2K44/bundle.json","state":"https://pith.science/pith/SLR5NLFILZV5FK2WEQW6GC2K44/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SLR5NLFILZV5FK2WEQW6GC2K44/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:SLR5NLFILZV5FK2WEQW6GC2K44","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":"bbd0e464cc22fe29fe636d1e01c5e7f5132a0e5f1b29c7665c004f52b2b29920","cross_cats_sorted":["hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2022-02-18T22:19:35Z","title_canon_sha256":"f0ab957d50f4f60fde3979c1059b4e1c550264959ca6236a21126124e146305d"},"schema_version":"1.0","source":{"id":"2202.09453","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.09453","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"arxiv_version","alias_value":"2202.09453v1","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.09453","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"pith_short_12","alias_value":"SLR5NLFILZV5","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"pith_short_16","alias_value":"SLR5NLFILZV5FK2W","created_at":"2026-07-05T04:52:48Z"},{"alias_kind":"pith_short_8","alias_value":"SLR5NLFI","created_at":"2026-07-05T04:52:48Z"}],"graph_snapshots":[{"event_id":"sha256:1db5455d5163c3797600738b9e0d88add8771352ee3ec9970c0c9dc465c23467","target":"graph","created_at":"2026-07-05T04:52:48Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2202.09453/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Regge-Teitelboim formulation of gravity, which utilizes dynamical embeddings in a background space, effectively introduces source terms in the standard Einstein equations that are not attributable to the energy-momentum tensor. We show that for a simple class of embeddings of the Robertson-Walker metric, these source terms naturally generate cosmic acceleration.","authors_text":"A. Stern, Chuang Xu, S. Fabi","cross_cats":["hep-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2022-02-18T22:19:35Z","title":"Cosmic acceleration in Regge-Teitelboim gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.09453","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":"sha256:420727ac76b9b99987f06f1ed753c71f9467b5f8dd0e206443c739717f4b688f","target":"record","created_at":"2026-07-05T04:52:48Z","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":"bbd0e464cc22fe29fe636d1e01c5e7f5132a0e5f1b29c7665c004f52b2b29920","cross_cats_sorted":["hep-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2022-02-18T22:19:35Z","title_canon_sha256":"f0ab957d50f4f60fde3979c1059b4e1c550264959ca6236a21126124e146305d"},"schema_version":"1.0","source":{"id":"2202.09453","kind":"arxiv","version":1}},"canonical_sha256":"92e3d6aca85e6bd2ab56242de30b4ae70f1ee37b0b451fd5a8cf20d9657ea07e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92e3d6aca85e6bd2ab56242de30b4ae70f1ee37b0b451fd5a8cf20d9657ea07e","first_computed_at":"2026-07-05T04:52:48.946033Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:52:48.946033Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"egrqL4Sv5A4TdQrd0jd8tRdz+asaBQNbPtZmNB2ZthKLK6jMOiNt2O2i5pFSIEVmKZddwLqH3nkvHgIvfri+AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:52:48.946477Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.09453","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:420727ac76b9b99987f06f1ed753c71f9467b5f8dd0e206443c739717f4b688f","sha256:1db5455d5163c3797600738b9e0d88add8771352ee3ec9970c0c9dc465c23467"],"state_sha256":"fa297520844132dfc056ea08d3abec50186f4f1d27ec9f710f6b5587445aabec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7os3jJhQrxurzk4nFr7rWhLigB97qiW+Q/SoK51lXDVGWNi6UDB73e3J7MP9x442nTw1AASR6EFR2ChZRyHrBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T09:32:39.917712Z","bundle_sha256":"6791aa4361c44c07c41786b9df0a4624e370604dba8a4dffaf6caa7bdae97b62"}}