{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:YS377YDLW6HIGO6BND6SD45PZT","short_pith_number":"pith:YS377YDL","canonical_record":{"source":{"id":"gr-qc/0404056","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2004-04-13T12:03:13Z","cross_cats_sorted":[],"title_canon_sha256":"2ad54c080f464b4d719e2a700864820f138355a5c7856203d512a73ddf8bcccf","abstract_canon_sha256":"cb03f812087827cdd8e1e74431bc45110809a10be05135b7d676b253b38a6f48"},"schema_version":"1.0"},"canonical_sha256":"c4b7ffe06bb78e833bc168fd21f3afccccef51ecfe96d652d9286fbcffddf2ed","source":{"kind":"arxiv","id":"gr-qc/0404056","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0404056","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0404056v2","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0404056","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"pith_short_12","alias_value":"YS377YDLW6HI","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"pith_short_16","alias_value":"YS377YDLW6HIGO6B","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"pith_short_8","alias_value":"YS377YDL","created_at":"2026-07-04T15:31:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:YS377YDLW6HIGO6BND6SD45PZT","target":"record","payload":{"canonical_record":{"source":{"id":"gr-qc/0404056","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2004-04-13T12:03:13Z","cross_cats_sorted":[],"title_canon_sha256":"2ad54c080f464b4d719e2a700864820f138355a5c7856203d512a73ddf8bcccf","abstract_canon_sha256":"cb03f812087827cdd8e1e74431bc45110809a10be05135b7d676b253b38a6f48"},"schema_version":"1.0"},"canonical_sha256":"c4b7ffe06bb78e833bc168fd21f3afccccef51ecfe96d652d9286fbcffddf2ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:31:26.248665Z","signature_b64":"2MYWb1Xerwj62ts2RncyJzyWI0ntn7cTrxwD8glKKMDQbkYUIgx7+t7CQe5HJA4hDjAfuJyNtwublMv/LSZ6Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4b7ffe06bb78e833bc168fd21f3afccccef51ecfe96d652d9286fbcffddf2ed","last_reissued_at":"2026-07-04T15:31:26.248119Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:31:26.248119Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"gr-qc/0404056","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:31:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"34zTchto17cJcLLPsUXKW1808lgb3iSmI4V/ObFTlwKnTa+EMvmu60ldDc1zycCgzgavJ9fqtL6Ln2iHBFxhDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:12:20.634129Z"},"content_sha256":"eec883bdcabb5b1ee58ae7df8ce848fcfc41476673decdb20f88d0608963ef68","schema_version":"1.0","event_id":"sha256:eec883bdcabb5b1ee58ae7df8ce848fcfc41476673decdb20f88d0608963ef68"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:YS377YDLW6HIGO6BND6SD45PZT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A single-domain spectral method for black hole puncture data","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Bernd Bruegmann, Marcus Ansorg, Wolfgang Tichy","submitted_at":"2004-04-13T12:03:13Z","abstract_excerpt":"We calculate puncture initial data corresponding to both single and binary black hole solutions of the constraint equations by means of a pseudo-spectral method applied in a single spatial domain. Introducing appropriate coordinates, these methods exhibit rapid convergence of the conformal factor and lead to highly accurate solutions. As an application we investigate small mass ratios of binary black holes and compare these with the corresponding test mass limit that we obtain through a semi-analytical limiting procedure. In particular, we compare the binding energy of puncture data in this li"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0404056","kind":"arxiv","version":2},"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/gr-qc/0404056/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":"2026-07-04T15:31:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cfWFpn4Jl68/5BJpoyDx1zVIZURmta0GSUHJNBPTcanQHxjx54SsG97Lj45CgS2AGhXKvh6XQHfyP4AVwpi9Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:12:20.634739Z"},"content_sha256":"188b83fb37a42efc1734002f4bd8c35e67783bae5a0467edaaa90675acf54265","schema_version":"1.0","event_id":"sha256:188b83fb37a42efc1734002f4bd8c35e67783bae5a0467edaaa90675acf54265"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YS377YDLW6HIGO6BND6SD45PZT/bundle.json","state_url":"https://pith.science/pith/YS377YDLW6HIGO6BND6SD45PZT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YS377YDLW6HIGO6BND6SD45PZT/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":"2026-08-03T15:12:20Z","links":{"resolver":"https://pith.science/pith/YS377YDLW6HIGO6BND6SD45PZT","bundle":"https://pith.science/pith/YS377YDLW6HIGO6BND6SD45PZT/bundle.json","state":"https://pith.science/pith/YS377YDLW6HIGO6BND6SD45PZT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YS377YDLW6HIGO6BND6SD45PZT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:YS377YDLW6HIGO6BND6SD45PZT","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":"cb03f812087827cdd8e1e74431bc45110809a10be05135b7d676b253b38a6f48","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2004-04-13T12:03:13Z","title_canon_sha256":"2ad54c080f464b4d719e2a700864820f138355a5c7856203d512a73ddf8bcccf"},"schema_version":"1.0","source":{"id":"gr-qc/0404056","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0404056","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0404056v2","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0404056","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"pith_short_12","alias_value":"YS377YDLW6HI","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"pith_short_16","alias_value":"YS377YDLW6HIGO6B","created_at":"2026-07-04T15:31:26Z"},{"alias_kind":"pith_short_8","alias_value":"YS377YDL","created_at":"2026-07-04T15:31:26Z"}],"graph_snapshots":[{"event_id":"sha256:188b83fb37a42efc1734002f4bd8c35e67783bae5a0467edaaa90675acf54265","target":"graph","created_at":"2026-07-04T15:31:26Z","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/gr-qc/0404056/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We calculate puncture initial data corresponding to both single and binary black hole solutions of the constraint equations by means of a pseudo-spectral method applied in a single spatial domain. Introducing appropriate coordinates, these methods exhibit rapid convergence of the conformal factor and lead to highly accurate solutions. As an application we investigate small mass ratios of binary black holes and compare these with the corresponding test mass limit that we obtain through a semi-analytical limiting procedure. In particular, we compare the binding energy of puncture data in this li","authors_text":"Bernd Bruegmann, Marcus Ansorg, Wolfgang Tichy","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2004-04-13T12:03:13Z","title":"A single-domain spectral method for black hole puncture data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0404056","kind":"arxiv","version":2},"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:eec883bdcabb5b1ee58ae7df8ce848fcfc41476673decdb20f88d0608963ef68","target":"record","created_at":"2026-07-04T15:31:26Z","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":"cb03f812087827cdd8e1e74431bc45110809a10be05135b7d676b253b38a6f48","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2004-04-13T12:03:13Z","title_canon_sha256":"2ad54c080f464b4d719e2a700864820f138355a5c7856203d512a73ddf8bcccf"},"schema_version":"1.0","source":{"id":"gr-qc/0404056","kind":"arxiv","version":2}},"canonical_sha256":"c4b7ffe06bb78e833bc168fd21f3afccccef51ecfe96d652d9286fbcffddf2ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4b7ffe06bb78e833bc168fd21f3afccccef51ecfe96d652d9286fbcffddf2ed","first_computed_at":"2026-07-04T15:31:26.248119Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:31:26.248119Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2MYWb1Xerwj62ts2RncyJzyWI0ntn7cTrxwD8glKKMDQbkYUIgx7+t7CQe5HJA4hDjAfuJyNtwublMv/LSZ6Cg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:31:26.248665Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0404056","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eec883bdcabb5b1ee58ae7df8ce848fcfc41476673decdb20f88d0608963ef68","sha256:188b83fb37a42efc1734002f4bd8c35e67783bae5a0467edaaa90675acf54265"],"state_sha256":"626832ad0ba50ce0000c6f6e7832fa8cf983479f047e962aab884a3ee23946ef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iwoHoEl39yMs4nK7O7dfnBFRaUM5wFeDAJD/n34QYtvprObN2PE1I1Jvzsn2ZRvMI366mYdWUSAlMk8AVjSuDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T15:12:20.639125Z","bundle_sha256":"1e6874961d9077337a40fac46b9092344d8449502277a4348b335e9ec79df86e"}}