{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:VBUTBXSEBSMPF4FQBPBPWKG4BR","short_pith_number":"pith:VBUTBXSE","canonical_record":{"source":{"id":"1310.1574","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-06T11:23:00Z","cross_cats_sorted":[],"title_canon_sha256":"6eae078ac742669eeb15a4e5a8951d5585f00df489ac57c53efc5ece2f54417f","abstract_canon_sha256":"313098429a5b6917102fb4bf5be485afc847b520b6b609ea888d97f3ad8c3164"},"schema_version":"1.0"},"canonical_sha256":"a86930de440c98f2f0b00bc2fb28dc0c5f6d76ae00a4fda890024c7164a23d34","source":{"kind":"arxiv","id":"1310.1574","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.1574","created_at":"2026-05-18T01:47:14Z"},{"alias_kind":"arxiv_version","alias_value":"1310.1574v1","created_at":"2026-05-18T01:47:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.1574","created_at":"2026-05-18T01:47:14Z"},{"alias_kind":"pith_short_12","alias_value":"VBUTBXSEBSMP","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VBUTBXSEBSMPF4FQ","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VBUTBXSE","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:VBUTBXSEBSMPF4FQBPBPWKG4BR","target":"record","payload":{"canonical_record":{"source":{"id":"1310.1574","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-06T11:23:00Z","cross_cats_sorted":[],"title_canon_sha256":"6eae078ac742669eeb15a4e5a8951d5585f00df489ac57c53efc5ece2f54417f","abstract_canon_sha256":"313098429a5b6917102fb4bf5be485afc847b520b6b609ea888d97f3ad8c3164"},"schema_version":"1.0"},"canonical_sha256":"a86930de440c98f2f0b00bc2fb28dc0c5f6d76ae00a4fda890024c7164a23d34","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:14.714709Z","signature_b64":"2KKYPQasva5QDEy+/6M3eKnM2hgr7pryUbItQ+Xi54Wpm9TfMBsuGIqAX/ovm83LR7lxmXTEUKYZIsZb1miZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a86930de440c98f2f0b00bc2fb28dc0c5f6d76ae00a4fda890024c7164a23d34","last_reissued_at":"2026-05-18T01:47:14.713787Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:14.713787Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.1574","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":"2026-05-18T01:47:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0U+Pm/fyV9U7yALmuxCgjXqbHEXb8KKoQpU1U1OjJPOOiUxg6lvdPNF23T81WGjNmgNzRvuBcTujiX357L1lBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T14:10:05.364413Z"},"content_sha256":"69fa211b90fe7801c6da1b0687df274cd6e7cd84c2d55848f080abe74abb55ec","schema_version":"1.0","event_id":"sha256:69fa211b90fe7801c6da1b0687df274cd6e7cd84c2d55848f080abe74abb55ec"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:VBUTBXSEBSMPF4FQBPBPWKG4BR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Notes on the compatibility of type Ia supernovae data and varying--$G$ cosmology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"A. Shojai, F. Shojai","submitted_at":"2013-10-06T11:23:00Z","abstract_excerpt":"Observational data for type Ia supernovae, shows that the expansion of the universe is accelerated. This accelerated expansion can be described by a cosmological constant or by dark energy models like quintessence. An interesting question may be raised here. Is it possible to describe the accelerated expansion of universe using varying--$G$ cosmological models? Here we shall show that the price for having accelerated expansion in slow--varying--$G$ models (in which the dynamical terms of $G$ are ignored) is to have highly non--conserved matter and also that it is in contradiction with other da"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.1574","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":"2026-05-18T01:47:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jiIdW9HtGIlnvFkxb0vm145vKKcURXhElHb+yZFZe9QJ0VWDGF/5MxcGcmZfaaLgGFyQSCRAGMnY4c9S2XJKAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T14:10:05.364799Z"},"content_sha256":"1bd1462aa48e6966a2b4f181c1c6c732e7cf2e066cd7db79f5f955035f506ff8","schema_version":"1.0","event_id":"sha256:1bd1462aa48e6966a2b4f181c1c6c732e7cf2e066cd7db79f5f955035f506ff8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VBUTBXSEBSMPF4FQBPBPWKG4BR/bundle.json","state_url":"https://pith.science/pith/VBUTBXSEBSMPF4FQBPBPWKG4BR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VBUTBXSEBSMPF4FQBPBPWKG4BR/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":"2026-06-04T14:10:05Z","links":{"resolver":"https://pith.science/pith/VBUTBXSEBSMPF4FQBPBPWKG4BR","bundle":"https://pith.science/pith/VBUTBXSEBSMPF4FQBPBPWKG4BR/bundle.json","state":"https://pith.science/pith/VBUTBXSEBSMPF4FQBPBPWKG4BR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VBUTBXSEBSMPF4FQBPBPWKG4BR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:VBUTBXSEBSMPF4FQBPBPWKG4BR","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":"313098429a5b6917102fb4bf5be485afc847b520b6b609ea888d97f3ad8c3164","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-06T11:23:00Z","title_canon_sha256":"6eae078ac742669eeb15a4e5a8951d5585f00df489ac57c53efc5ece2f54417f"},"schema_version":"1.0","source":{"id":"1310.1574","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.1574","created_at":"2026-05-18T01:47:14Z"},{"alias_kind":"arxiv_version","alias_value":"1310.1574v1","created_at":"2026-05-18T01:47:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.1574","created_at":"2026-05-18T01:47:14Z"},{"alias_kind":"pith_short_12","alias_value":"VBUTBXSEBSMP","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VBUTBXSEBSMPF4FQ","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VBUTBXSE","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:1bd1462aa48e6966a2b4f181c1c6c732e7cf2e066cd7db79f5f955035f506ff8","target":"graph","created_at":"2026-05-18T01:47:14Z","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":"Observational data for type Ia supernovae, shows that the expansion of the universe is accelerated. This accelerated expansion can be described by a cosmological constant or by dark energy models like quintessence. An interesting question may be raised here. Is it possible to describe the accelerated expansion of universe using varying--$G$ cosmological models? Here we shall show that the price for having accelerated expansion in slow--varying--$G$ models (in which the dynamical terms of $G$ are ignored) is to have highly non--conserved matter and also that it is in contradiction with other da","authors_text":"A. Shojai, F. Shojai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-06T11:23:00Z","title":"Notes on the compatibility of type Ia supernovae data and varying--$G$ cosmology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.1574","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":"sha256:69fa211b90fe7801c6da1b0687df274cd6e7cd84c2d55848f080abe74abb55ec","target":"record","created_at":"2026-05-18T01:47:14Z","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":"313098429a5b6917102fb4bf5be485afc847b520b6b609ea888d97f3ad8c3164","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-10-06T11:23:00Z","title_canon_sha256":"6eae078ac742669eeb15a4e5a8951d5585f00df489ac57c53efc5ece2f54417f"},"schema_version":"1.0","source":{"id":"1310.1574","kind":"arxiv","version":1}},"canonical_sha256":"a86930de440c98f2f0b00bc2fb28dc0c5f6d76ae00a4fda890024c7164a23d34","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a86930de440c98f2f0b00bc2fb28dc0c5f6d76ae00a4fda890024c7164a23d34","first_computed_at":"2026-05-18T01:47:14.713787Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:14.713787Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2KKYPQasva5QDEy+/6M3eKnM2hgr7pryUbItQ+Xi54Wpm9TfMBsuGIqAX/ovm83LR7lxmXTEUKYZIsZb1miZBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:14.714709Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.1574","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69fa211b90fe7801c6da1b0687df274cd6e7cd84c2d55848f080abe74abb55ec","sha256:1bd1462aa48e6966a2b4f181c1c6c732e7cf2e066cd7db79f5f955035f506ff8"],"state_sha256":"8f9bd8a65c2835616a85c57b99093a6d2e366067898746c801dc8e947e6a1371"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QNFO/D8Eck9eCr1og4FZAJkdpnMKod63utSG8bNMjlIu42tjKG8rOKMoTRHxsGaqGsPngBtynSmKz0QnBZz9DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T14:10:05.366981Z","bundle_sha256":"37370579fe78668f2b2d90e44909329a6dbcabae81c4eac321c446869bf4ed4c"}}