{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:EW7WAVNKWRKBGQRELBJHY6LPEN","short_pith_number":"pith:EW7WAVNK","canonical_record":{"source":{"id":"cs/0608005","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cs.SC","submitted_at":"2006-08-01T19:05:20Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"4d4e3be96ac056658fe094f2da4cd6d0cec96e8c8df761b56b2d96a916e9db7e","abstract_canon_sha256":"2f1558c41d9699696d2a2e2b8e146bc9d0e5d117536285dbfe28dd03351b21df"},"schema_version":"1.0"},"canonical_sha256":"25bf6055aab45413422458527c796f2376a0cd4994fd8ff27f2e1343b7ace53d","source":{"kind":"arxiv","id":"cs/0608005","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cs/0608005","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"arxiv_version","alias_value":"cs/0608005v2","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cs/0608005","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_12","alias_value":"EW7WAVNKWRKB","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_16","alias_value":"EW7WAVNKWRKBGQRE","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_8","alias_value":"EW7WAVNK","created_at":"2026-07-04T15:19:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:EW7WAVNKWRKBGQRELBJHY6LPEN","target":"record","payload":{"canonical_record":{"source":{"id":"cs/0608005","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cs.SC","submitted_at":"2006-08-01T19:05:20Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"4d4e3be96ac056658fe094f2da4cd6d0cec96e8c8df761b56b2d96a916e9db7e","abstract_canon_sha256":"2f1558c41d9699696d2a2e2b8e146bc9d0e5d117536285dbfe28dd03351b21df"},"schema_version":"1.0"},"canonical_sha256":"25bf6055aab45413422458527c796f2376a0cd4994fd8ff27f2e1343b7ace53d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:19:19.695046Z","signature_b64":"1G2YXty6iKQznpvijhFDs0UlOx3M4hu9Z+j3btYcuMVaw8XsMMKxmTNL7ZTuTT/HjihcTCTb5JFScLwoz2wNDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"25bf6055aab45413422458527c796f2376a0cd4994fd8ff27f2e1343b7ace53d","last_reissued_at":"2026-07-04T15:19:19.694601Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:19:19.694601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cs/0608005","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":"2026-07-04T15:19:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ATVcNcAsSgqG2B/RxelP/bT8BkYT0Dd369/i5QqU1K6Zz61sur2V6DoliyVl3wJck6jfrNTjqy+4bvW3KaDnDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T13:25:19.340566Z"},"content_sha256":"1368304b87c42b0073efe4e880f7862003f6fa83adb45ad4b80e42466c7b9a90","schema_version":"1.0","event_id":"sha256:1368304b87c42b0073efe4e880f7862003f6fa83adb45ad4b80e42466c7b9a90"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:EW7WAVNKWRKBGQRELBJHY6LPEN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A field-theory motivated approach to symbolic computer algebra","license":"","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"cs.SC","authors_text":"Kasper Peeters","submitted_at":"2006-08-01T19:05:20Z","abstract_excerpt":"Field theory is an area in physics with a deceptively compact notation. Although general purpose computer algebra systems, built around generic list-based data structures, can be used to represent and manipulate field-theory expressions, this often leads to cumbersome input formats, unexpected side-effects, or the need for a lot of special-purpose code. This makes a direct translation of problems from paper to computer and back needlessly time-consuming and error-prone. A prototype computer algebra system is presented which features TeX-like input, graph data structures, lists with Young-table"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cs/0608005","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/cs/0608005/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":"2026-07-04T15:19:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ixJcQfhERINalQWSSA7JC+XitXNo9KdFrR2ZoR6FJNvUI+xD7TGkpWrXY41fuSmTlir3AmnQ1b4FPigPyzQxBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T13:25:19.340959Z"},"content_sha256":"b96fc911df16b23a66d04a9d22a727e71d319b13b31a59e7223c574fd7c1de58","schema_version":"1.0","event_id":"sha256:b96fc911df16b23a66d04a9d22a727e71d319b13b31a59e7223c574fd7c1de58"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EW7WAVNKWRKBGQRELBJHY6LPEN/bundle.json","state_url":"https://pith.science/pith/EW7WAVNKWRKBGQRELBJHY6LPEN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EW7WAVNKWRKBGQRELBJHY6LPEN/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":"2026-07-11T13:25:19Z","links":{"resolver":"https://pith.science/pith/EW7WAVNKWRKBGQRELBJHY6LPEN","bundle":"https://pith.science/pith/EW7WAVNKWRKBGQRELBJHY6LPEN/bundle.json","state":"https://pith.science/pith/EW7WAVNKWRKBGQRELBJHY6LPEN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EW7WAVNKWRKBGQRELBJHY6LPEN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:EW7WAVNKWRKBGQRELBJHY6LPEN","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":"2f1558c41d9699696d2a2e2b8e146bc9d0e5d117536285dbfe28dd03351b21df","cross_cats_sorted":["gr-qc","hep-th"],"license":"","primary_cat":"cs.SC","submitted_at":"2006-08-01T19:05:20Z","title_canon_sha256":"4d4e3be96ac056658fe094f2da4cd6d0cec96e8c8df761b56b2d96a916e9db7e"},"schema_version":"1.0","source":{"id":"cs/0608005","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cs/0608005","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"arxiv_version","alias_value":"cs/0608005v2","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cs/0608005","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_12","alias_value":"EW7WAVNKWRKB","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_16","alias_value":"EW7WAVNKWRKBGQRE","created_at":"2026-07-04T15:19:19Z"},{"alias_kind":"pith_short_8","alias_value":"EW7WAVNK","created_at":"2026-07-04T15:19:19Z"}],"graph_snapshots":[{"event_id":"sha256:b96fc911df16b23a66d04a9d22a727e71d319b13b31a59e7223c574fd7c1de58","target":"graph","created_at":"2026-07-04T15:19:19Z","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/cs/0608005/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Field theory is an area in physics with a deceptively compact notation. Although general purpose computer algebra systems, built around generic list-based data structures, can be used to represent and manipulate field-theory expressions, this often leads to cumbersome input formats, unexpected side-effects, or the need for a lot of special-purpose code. This makes a direct translation of problems from paper to computer and back needlessly time-consuming and error-prone. A prototype computer algebra system is presented which features TeX-like input, graph data structures, lists with Young-table","authors_text":"Kasper Peeters","cross_cats":["gr-qc","hep-th"],"headline":"","license":"","primary_cat":"cs.SC","submitted_at":"2006-08-01T19:05:20Z","title":"A field-theory motivated approach to symbolic computer algebra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cs/0608005","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":"sha256:1368304b87c42b0073efe4e880f7862003f6fa83adb45ad4b80e42466c7b9a90","target":"record","created_at":"2026-07-04T15:19:19Z","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":"2f1558c41d9699696d2a2e2b8e146bc9d0e5d117536285dbfe28dd03351b21df","cross_cats_sorted":["gr-qc","hep-th"],"license":"","primary_cat":"cs.SC","submitted_at":"2006-08-01T19:05:20Z","title_canon_sha256":"4d4e3be96ac056658fe094f2da4cd6d0cec96e8c8df761b56b2d96a916e9db7e"},"schema_version":"1.0","source":{"id":"cs/0608005","kind":"arxiv","version":2}},"canonical_sha256":"25bf6055aab45413422458527c796f2376a0cd4994fd8ff27f2e1343b7ace53d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"25bf6055aab45413422458527c796f2376a0cd4994fd8ff27f2e1343b7ace53d","first_computed_at":"2026-07-04T15:19:19.694601Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:19:19.694601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1G2YXty6iKQznpvijhFDs0UlOx3M4hu9Z+j3btYcuMVaw8XsMMKxmTNL7ZTuTT/HjihcTCTb5JFScLwoz2wNDw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:19:19.695046Z","signed_message":"canonical_sha256_bytes"},"source_id":"cs/0608005","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1368304b87c42b0073efe4e880f7862003f6fa83adb45ad4b80e42466c7b9a90","sha256:b96fc911df16b23a66d04a9d22a727e71d319b13b31a59e7223c574fd7c1de58"],"state_sha256":"dbc722b56c3f634c7df0ef6e7009332fd55a2c18c499121fcb1964b5924c9cd2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8jxtV+GHpUbGdC2P0XDZZdXk7O9LSdmtJ7/Nvm3+ux2kB9RuGwkYZLu76m3GyMwYWrHnRZm44cnLl8dVpIHtBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T13:25:19.345484Z","bundle_sha256":"6d150ab8f42b0c417cd2c3d2df5a56c9c53541336ff65cf1ce0b334effe3a6ba"}}