{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1996:7U7IVE3ZOZRVFTCGTKPGGZTL35","short_pith_number":"pith:7U7IVE3Z","canonical_record":{"source":{"id":"gr-qc/9606045","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"1996-06-17T07:55:37Z","cross_cats_sorted":[],"title_canon_sha256":"97cb95a8a5b5ed514a6ee5bb1ca4fb00f19c8dbb612b528021ac489f91dc731f","abstract_canon_sha256":"6c67886f6f695df3d05fd40b6d322be7096a1bda16522f5b7fd74b0ccc089998"},"schema_version":"1.0"},"canonical_sha256":"fd3e8a9379766352cc469a9e63666bdf68bae8cf8f8694050a91d318baf1c1f6","source":{"kind":"arxiv","id":"gr-qc/9606045","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/9606045","created_at":"2026-05-18T01:06:44Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9606045v1","created_at":"2026-05-18T01:06:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9606045","created_at":"2026-05-18T01:06:44Z"},{"alias_kind":"pith_short_12","alias_value":"7U7IVE3ZOZRV","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"7U7IVE3ZOZRVFTCG","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"7U7IVE3Z","created_at":"2026-05-18T12:25:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1996:7U7IVE3ZOZRVFTCGTKPGGZTL35","target":"record","payload":{"canonical_record":{"source":{"id":"gr-qc/9606045","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"1996-06-17T07:55:37Z","cross_cats_sorted":[],"title_canon_sha256":"97cb95a8a5b5ed514a6ee5bb1ca4fb00f19c8dbb612b528021ac489f91dc731f","abstract_canon_sha256":"6c67886f6f695df3d05fd40b6d322be7096a1bda16522f5b7fd74b0ccc089998"},"schema_version":"1.0"},"canonical_sha256":"fd3e8a9379766352cc469a9e63666bdf68bae8cf8f8694050a91d318baf1c1f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:44.643099Z","signature_b64":"IuqM/M9tXG48zQKJJUmbS13/mbiS8hltymNbU7PCmBlq8S2Lt44fUw/UdnMxRwnP/4LydudVUfW3lOMa/x9sCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd3e8a9379766352cc469a9e63666bdf68bae8cf8f8694050a91d318baf1c1f6","last_reissued_at":"2026-05-18T01:06:44.642464Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:44.642464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"gr-qc/9606045","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":"2026-05-18T01:06:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4KDaoaRDmRljiJ4Wu81QCGlHzUx/tFLYxjqTD5H3RUusmhcdoR+rYtbZrld8dy2YMbcPhZR55oW8eE8VUCojDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:50:27.358174Z"},"content_sha256":"c5d8a38c6317fb72b11ee32dac6558f4eeaa32f936ea2f5406bf2c96b421d49d","schema_version":"1.0","event_id":"sha256:c5d8a38c6317fb72b11ee32dac6558f4eeaa32f936ea2f5406bf2c96b421d49d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1996:7U7IVE3ZOZRVFTCGTKPGGZTL35","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Comment on \"Failure of standard conservation laws at a classical change of signature\"","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Sean A. Hayward","submitted_at":"1996-06-17T07:55:37Z","abstract_excerpt":"Hellaby & Dray (gr-qc/9404001) have recently claimed that matter conservation fails under a change of signature, compounding earlier claims that the standard junction conditions for signature change are unnecessary. In fact, if the field equations are satisfied, then the junction conditions and the conservation equations are satisfied. The failure is rather that the authors did not make sense of the field equations and conservation equations, which are singular at a change of signature."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9606045","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":"2026-05-18T01:06:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PG8HZlaPUyZaajbpTRW8z2CWE7ylK4cwcW1RX4r0BF+TAUrqnhWPA4xsc3bQhq2XpIs8/BAL+y9gMTGcLSsDDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T17:50:27.358537Z"},"content_sha256":"0d87547a0661e4637df2c0e3a24317bbd0bb83aafbca7b82851c4bd24066dad2","schema_version":"1.0","event_id":"sha256:0d87547a0661e4637df2c0e3a24317bbd0bb83aafbca7b82851c4bd24066dad2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7U7IVE3ZOZRVFTCGTKPGGZTL35/bundle.json","state_url":"https://pith.science/pith/7U7IVE3ZOZRVFTCGTKPGGZTL35/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7U7IVE3ZOZRVFTCGTKPGGZTL35/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":"2026-06-02T17:50:27Z","links":{"resolver":"https://pith.science/pith/7U7IVE3ZOZRVFTCGTKPGGZTL35","bundle":"https://pith.science/pith/7U7IVE3ZOZRVFTCGTKPGGZTL35/bundle.json","state":"https://pith.science/pith/7U7IVE3ZOZRVFTCGTKPGGZTL35/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7U7IVE3ZOZRVFTCGTKPGGZTL35/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:7U7IVE3ZOZRVFTCGTKPGGZTL35","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":"6c67886f6f695df3d05fd40b6d322be7096a1bda16522f5b7fd74b0ccc089998","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1996-06-17T07:55:37Z","title_canon_sha256":"97cb95a8a5b5ed514a6ee5bb1ca4fb00f19c8dbb612b528021ac489f91dc731f"},"schema_version":"1.0","source":{"id":"gr-qc/9606045","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/9606045","created_at":"2026-05-18T01:06:44Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/9606045v1","created_at":"2026-05-18T01:06:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/9606045","created_at":"2026-05-18T01:06:44Z"},{"alias_kind":"pith_short_12","alias_value":"7U7IVE3ZOZRV","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"7U7IVE3ZOZRVFTCG","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"7U7IVE3Z","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:0d87547a0661e4637df2c0e3a24317bbd0bb83aafbca7b82851c4bd24066dad2","target":"graph","created_at":"2026-05-18T01:06:44Z","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":"Hellaby & Dray (gr-qc/9404001) have recently claimed that matter conservation fails under a change of signature, compounding earlier claims that the standard junction conditions for signature change are unnecessary. In fact, if the field equations are satisfied, then the junction conditions and the conservation equations are satisfied. The failure is rather that the authors did not make sense of the field equations and conservation equations, which are singular at a change of signature.","authors_text":"Sean A. Hayward","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"1996-06-17T07:55:37Z","title":"Comment on \"Failure of standard conservation laws at a classical change of signature\""},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9606045","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:c5d8a38c6317fb72b11ee32dac6558f4eeaa32f936ea2f5406bf2c96b421d49d","target":"record","created_at":"2026-05-18T01:06:44Z","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":"6c67886f6f695df3d05fd40b6d322be7096a1bda16522f5b7fd74b0ccc089998","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"1996-06-17T07:55:37Z","title_canon_sha256":"97cb95a8a5b5ed514a6ee5bb1ca4fb00f19c8dbb612b528021ac489f91dc731f"},"schema_version":"1.0","source":{"id":"gr-qc/9606045","kind":"arxiv","version":1}},"canonical_sha256":"fd3e8a9379766352cc469a9e63666bdf68bae8cf8f8694050a91d318baf1c1f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd3e8a9379766352cc469a9e63666bdf68bae8cf8f8694050a91d318baf1c1f6","first_computed_at":"2026-05-18T01:06:44.642464Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:44.642464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IuqM/M9tXG48zQKJJUmbS13/mbiS8hltymNbU7PCmBlq8S2Lt44fUw/UdnMxRwnP/4LydudVUfW3lOMa/x9sCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:44.643099Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/9606045","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c5d8a38c6317fb72b11ee32dac6558f4eeaa32f936ea2f5406bf2c96b421d49d","sha256:0d87547a0661e4637df2c0e3a24317bbd0bb83aafbca7b82851c4bd24066dad2"],"state_sha256":"a8f13d4abdcc1e4f0a8f231a7dc06b6b515d996966ee1518c700dd9a3242373d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HNEiENpDLOzvdnE4Lzo/MpV96/OAFHlMfBy+LM0m1mFrNgolCQPof6jabhkeZxGUx3JSifBd99pe0X1PB97gBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T17:50:27.360667Z","bundle_sha256":"36e9c452213c4bac3f27b70ab536f0d368603e6879014515518afb338c39cdd9"}}