{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:AQXWBTGEJKJKWQ7QO3I7FFRDF2","short_pith_number":"pith:AQXWBTGE","canonical_record":{"source":{"id":"1509.04162","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-10T20:07:23Z","cross_cats_sorted":[],"title_canon_sha256":"f63c404e8aebcf3f7ca7d0265d62439d04b7b47d2b6ac1e9d8aff1a58371097b","abstract_canon_sha256":"aa8db59c77bf8135ab66e6d6e6605bdf6dd27551b8eb513532249411552082a9"},"schema_version":"1.0"},"canonical_sha256":"042f60ccc44a92ab43f076d1f296232e885dde1a355990353858f273e6066929","source":{"kind":"arxiv","id":"1509.04162","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.04162","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"arxiv_version","alias_value":"1509.04162v1","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.04162","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"pith_short_12","alias_value":"AQXWBTGEJKJK","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"AQXWBTGEJKJKWQ7Q","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"AQXWBTGE","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:AQXWBTGEJKJKWQ7QO3I7FFRDF2","target":"record","payload":{"canonical_record":{"source":{"id":"1509.04162","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-10T20:07:23Z","cross_cats_sorted":[],"title_canon_sha256":"f63c404e8aebcf3f7ca7d0265d62439d04b7b47d2b6ac1e9d8aff1a58371097b","abstract_canon_sha256":"aa8db59c77bf8135ab66e6d6e6605bdf6dd27551b8eb513532249411552082a9"},"schema_version":"1.0"},"canonical_sha256":"042f60ccc44a92ab43f076d1f296232e885dde1a355990353858f273e6066929","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:33:08.186901Z","signature_b64":"MiJnOUKCZdKM00Q03d8/j0jEpm7SSBEYsF37GzHbpn3vjoegF/WfVHJQLrxpvL7tm2vKByUViB+QxumXNrEMAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"042f60ccc44a92ab43f076d1f296232e885dde1a355990353858f273e6066929","last_reissued_at":"2026-05-18T01:33:08.186178Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:33:08.186178Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.04162","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":"2026-05-18T01:33:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0MHLoRrtWxtdOm7Ey6aQihyd7IDm8TBCz2ha+HXt9vx0zO4ev6nJBGojFk/6YCYQxtzk5uV6KBQQjWMz/USADQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T12:00:46.781927Z"},"content_sha256":"10a0abf183b8163e87ff032463acb70d10f3dbc3e2b0fa21a1a48bc920fd595d","schema_version":"1.0","event_id":"sha256:10a0abf183b8163e87ff032463acb70d10f3dbc3e2b0fa21a1a48bc920fd595d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:AQXWBTGEJKJKWQ7QO3I7FFRDF2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the horizons in a viable vector-tensor theory of gravitation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Diego S\\'aez, M\\`arius J. Fullana, Roberto Dale","submitted_at":"2015-09-10T20:07:23Z","abstract_excerpt":"A certain vector-tensor (VT) theory of gravitation was tested in previous papers. In the background universe, the vector field of the theory has a certain energy density, which is appropriate to play the role of vacuum energy (cosmological constant). Moreover, this background and its perturbations may explain the temperature angular power spectrum of the cosmic microwave background (CMB) obtained with WMAP (Wilkinson Map Anisotropy Probe), and other observations, as e.g., the Ia supernova luminosities. The parametrized post-Newtonian limit of the VT theory has been proved to be identical to th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.04162","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":"2026-05-18T01:33:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DkXEWD9fA5Ed69DkQL7RAc9yUa7zKIIeICYEN82HlYBxrfP1nQ6YnnCvd4FfiUlgQ5MZ544lY1xgAbIDBymfAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T12:00:46.782265Z"},"content_sha256":"ddf5ac4a56b28764151f5cd444e616927992a7218f2c8f6a1aac3e49b6446976","schema_version":"1.0","event_id":"sha256:ddf5ac4a56b28764151f5cd444e616927992a7218f2c8f6a1aac3e49b6446976"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AQXWBTGEJKJKWQ7QO3I7FFRDF2/bundle.json","state_url":"https://pith.science/pith/AQXWBTGEJKJKWQ7QO3I7FFRDF2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AQXWBTGEJKJKWQ7QO3I7FFRDF2/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":"2026-06-27T12:00:46Z","links":{"resolver":"https://pith.science/pith/AQXWBTGEJKJKWQ7QO3I7FFRDF2","bundle":"https://pith.science/pith/AQXWBTGEJKJKWQ7QO3I7FFRDF2/bundle.json","state":"https://pith.science/pith/AQXWBTGEJKJKWQ7QO3I7FFRDF2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AQXWBTGEJKJKWQ7QO3I7FFRDF2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:AQXWBTGEJKJKWQ7QO3I7FFRDF2","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":"aa8db59c77bf8135ab66e6d6e6605bdf6dd27551b8eb513532249411552082a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-10T20:07:23Z","title_canon_sha256":"f63c404e8aebcf3f7ca7d0265d62439d04b7b47d2b6ac1e9d8aff1a58371097b"},"schema_version":"1.0","source":{"id":"1509.04162","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.04162","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"arxiv_version","alias_value":"1509.04162v1","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.04162","created_at":"2026-05-18T01:33:08Z"},{"alias_kind":"pith_short_12","alias_value":"AQXWBTGEJKJK","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"AQXWBTGEJKJKWQ7Q","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"AQXWBTGE","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:ddf5ac4a56b28764151f5cd444e616927992a7218f2c8f6a1aac3e49b6446976","target":"graph","created_at":"2026-05-18T01:33:08Z","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":"A certain vector-tensor (VT) theory of gravitation was tested in previous papers. In the background universe, the vector field of the theory has a certain energy density, which is appropriate to play the role of vacuum energy (cosmological constant). Moreover, this background and its perturbations may explain the temperature angular power spectrum of the cosmic microwave background (CMB) obtained with WMAP (Wilkinson Map Anisotropy Probe), and other observations, as e.g., the Ia supernova luminosities. The parametrized post-Newtonian limit of the VT theory has been proved to be identical to th","authors_text":"Diego S\\'aez, M\\`arius J. Fullana, Roberto Dale","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-10T20:07:23Z","title":"On the horizons in a viable vector-tensor theory of gravitation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.04162","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":"sha256:10a0abf183b8163e87ff032463acb70d10f3dbc3e2b0fa21a1a48bc920fd595d","target":"record","created_at":"2026-05-18T01:33:08Z","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":"aa8db59c77bf8135ab66e6d6e6605bdf6dd27551b8eb513532249411552082a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-09-10T20:07:23Z","title_canon_sha256":"f63c404e8aebcf3f7ca7d0265d62439d04b7b47d2b6ac1e9d8aff1a58371097b"},"schema_version":"1.0","source":{"id":"1509.04162","kind":"arxiv","version":1}},"canonical_sha256":"042f60ccc44a92ab43f076d1f296232e885dde1a355990353858f273e6066929","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"042f60ccc44a92ab43f076d1f296232e885dde1a355990353858f273e6066929","first_computed_at":"2026-05-18T01:33:08.186178Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:08.186178Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MiJnOUKCZdKM00Q03d8/j0jEpm7SSBEYsF37GzHbpn3vjoegF/WfVHJQLrxpvL7tm2vKByUViB+QxumXNrEMAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:08.186901Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.04162","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:10a0abf183b8163e87ff032463acb70d10f3dbc3e2b0fa21a1a48bc920fd595d","sha256:ddf5ac4a56b28764151f5cd444e616927992a7218f2c8f6a1aac3e49b6446976"],"state_sha256":"72a83ba165adf495c91ce3bd35e3e33cfcbe4a5827854e5b0ca5b0c5de81a3d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8yoC1gxXIAChAbj7uUrxJDBwenF71Hfz76uRDkv5Py3hQ27mrvc7ofX2u/xtX4wVEzMvDc8fjV0RdBB7MhqyBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T12:00:46.784093Z","bundle_sha256":"cbc2b9ae3a3caadb3e550a1542d2f91b29af99a4f82a4ccb1958f1bffcc10068"}}