{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:EKOUIQTTVSWGFZI5NZW76UMLXQ","short_pith_number":"pith:EKOUIQTT","canonical_record":{"source":{"id":"1308.0077","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-01T01:58:42Z","cross_cats_sorted":[],"title_canon_sha256":"1ed4fc0b5275c8da34a09fdf21f8fecdc4ae928d7fc326d7bac792ca06eb6748","abstract_canon_sha256":"81def8ff93b86c2d43d3f7315bfc09e370ce4af555fd676a83c90e72c7fabc1d"},"schema_version":"1.0"},"canonical_sha256":"229d444273acac62e51d6e6dff518bbc2408975c830817a257046dfb0d3c04a4","source":{"kind":"arxiv","id":"1308.0077","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.0077","created_at":"2026-05-18T01:48:31Z"},{"alias_kind":"arxiv_version","alias_value":"1308.0077v1","created_at":"2026-05-18T01:48:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0077","created_at":"2026-05-18T01:48:31Z"},{"alias_kind":"pith_short_12","alias_value":"EKOUIQTTVSWG","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"EKOUIQTTVSWGFZI5","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"EKOUIQTT","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:EKOUIQTTVSWGFZI5NZW76UMLXQ","target":"record","payload":{"canonical_record":{"source":{"id":"1308.0077","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-01T01:58:42Z","cross_cats_sorted":[],"title_canon_sha256":"1ed4fc0b5275c8da34a09fdf21f8fecdc4ae928d7fc326d7bac792ca06eb6748","abstract_canon_sha256":"81def8ff93b86c2d43d3f7315bfc09e370ce4af555fd676a83c90e72c7fabc1d"},"schema_version":"1.0"},"canonical_sha256":"229d444273acac62e51d6e6dff518bbc2408975c830817a257046dfb0d3c04a4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:31.911227Z","signature_b64":"Mwy2Ub4hEVwih8kcTnwCJY/djqFK+rh9Rk7wEJFmhSO94C2fnjLi5oejElcqaUVaSeBGfLXoyvNksVkVlAsqCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"229d444273acac62e51d6e6dff518bbc2408975c830817a257046dfb0d3c04a4","last_reissued_at":"2026-05-18T01:48:31.910528Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:31.910528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.0077","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":"2026-05-18T01:48:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LJOz21v1zqih2Ziyw7w14UmE5ACh+MYZ3Y6chYm4Kf+oyOx/K2wK78lLBQ3Mu69IEt/zHa9XER7PmkLwEZ4lAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T07:17:28.009635Z"},"content_sha256":"f0ab7ab7e59b0b0d097136822417ebccde366b9f509c4599e96d94b6910f9b05","schema_version":"1.0","event_id":"sha256:f0ab7ab7e59b0b0d097136822417ebccde366b9f509c4599e96d94b6910f9b05"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:EKOUIQTTVSWGFZI5NZW76UMLXQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An evolution of adiabatic matter: A case for the quasistatic regime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"W. Barreto (ULA)","submitted_at":"2013-08-01T01:58:42Z","abstract_excerpt":"We establish the connection between the standard ADM 3+1 treatment of matter with its characteristic equivalent, in the context of spherical symmetry. The flux-conservative rendition of the fluid equations are obtained. Considering adiabatic distributions of perfect fluid, we evolve the system using the so-called post-quasi-static approximation in radiation coordinates. We obtain an adiabatic matter evolution in the quasi-static regime or slow motion, which is not shear-free nor geodesic."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0077","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":"2026-05-18T01:48:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Muw3Rp7xgto/ZXdutgglUchL4AHmLKPq8K2XyqU/t7S9xUU74JRvxxDPIRr8AH8eNmLF9RB0DCGiT3QaE8uGBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T07:17:28.009971Z"},"content_sha256":"def2409a6d9e76e2549bdceae8331774b326cbf871bad3206362eb362bcf8d6b","schema_version":"1.0","event_id":"sha256:def2409a6d9e76e2549bdceae8331774b326cbf871bad3206362eb362bcf8d6b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EKOUIQTTVSWGFZI5NZW76UMLXQ/bundle.json","state_url":"https://pith.science/pith/EKOUIQTTVSWGFZI5NZW76UMLXQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EKOUIQTTVSWGFZI5NZW76UMLXQ/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":"2026-06-28T07:17:28Z","links":{"resolver":"https://pith.science/pith/EKOUIQTTVSWGFZI5NZW76UMLXQ","bundle":"https://pith.science/pith/EKOUIQTTVSWGFZI5NZW76UMLXQ/bundle.json","state":"https://pith.science/pith/EKOUIQTTVSWGFZI5NZW76UMLXQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EKOUIQTTVSWGFZI5NZW76UMLXQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:EKOUIQTTVSWGFZI5NZW76UMLXQ","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":"81def8ff93b86c2d43d3f7315bfc09e370ce4af555fd676a83c90e72c7fabc1d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-01T01:58:42Z","title_canon_sha256":"1ed4fc0b5275c8da34a09fdf21f8fecdc4ae928d7fc326d7bac792ca06eb6748"},"schema_version":"1.0","source":{"id":"1308.0077","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.0077","created_at":"2026-05-18T01:48:31Z"},{"alias_kind":"arxiv_version","alias_value":"1308.0077v1","created_at":"2026-05-18T01:48:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0077","created_at":"2026-05-18T01:48:31Z"},{"alias_kind":"pith_short_12","alias_value":"EKOUIQTTVSWG","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"EKOUIQTTVSWGFZI5","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"EKOUIQTT","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:def2409a6d9e76e2549bdceae8331774b326cbf871bad3206362eb362bcf8d6b","target":"graph","created_at":"2026-05-18T01:48:31Z","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 establish the connection between the standard ADM 3+1 treatment of matter with its characteristic equivalent, in the context of spherical symmetry. The flux-conservative rendition of the fluid equations are obtained. Considering adiabatic distributions of perfect fluid, we evolve the system using the so-called post-quasi-static approximation in radiation coordinates. We obtain an adiabatic matter evolution in the quasi-static regime or slow motion, which is not shear-free nor geodesic.","authors_text":"W. Barreto (ULA)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-01T01:58:42Z","title":"An evolution of adiabatic matter: A case for the quasistatic regime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0077","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:f0ab7ab7e59b0b0d097136822417ebccde366b9f509c4599e96d94b6910f9b05","target":"record","created_at":"2026-05-18T01:48:31Z","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":"81def8ff93b86c2d43d3f7315bfc09e370ce4af555fd676a83c90e72c7fabc1d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2013-08-01T01:58:42Z","title_canon_sha256":"1ed4fc0b5275c8da34a09fdf21f8fecdc4ae928d7fc326d7bac792ca06eb6748"},"schema_version":"1.0","source":{"id":"1308.0077","kind":"arxiv","version":1}},"canonical_sha256":"229d444273acac62e51d6e6dff518bbc2408975c830817a257046dfb0d3c04a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"229d444273acac62e51d6e6dff518bbc2408975c830817a257046dfb0d3c04a4","first_computed_at":"2026-05-18T01:48:31.910528Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:31.910528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mwy2Ub4hEVwih8kcTnwCJY/djqFK+rh9Rk7wEJFmhSO94C2fnjLi5oejElcqaUVaSeBGfLXoyvNksVkVlAsqCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:31.911227Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.0077","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f0ab7ab7e59b0b0d097136822417ebccde366b9f509c4599e96d94b6910f9b05","sha256:def2409a6d9e76e2549bdceae8331774b326cbf871bad3206362eb362bcf8d6b"],"state_sha256":"fcabab892d602224cff1214cc873748857da6fedcc7727e69eab72431b7ae831"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4TSf5dSPmaS3VZOoYf1FHwOZUSItGJFzeENMkgzCOHGS59yHEihGYgHVGhXIvi1Zfwm8pAJeLjFd2U9wTY1dBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T07:17:28.011785Z","bundle_sha256":"716a6573a4cb9ae18f896f37e998cc82aa6c8356436876682eb9e2d9ac3431c0"}}