{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:HJOVBXSWQYONKV7RLYBDB4ZZO3","short_pith_number":"pith:HJOVBXSW","canonical_record":{"source":{"id":"1906.12292","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-06-28T16:28:15Z","cross_cats_sorted":[],"title_canon_sha256":"faf3d724ec9b56417ca2f7931f6e7c1909d6c77da1d342ecac0647038b866fec","abstract_canon_sha256":"e4cb904a7241e5e902dedc84a80f415be49c7f7ad8e5b66be929ed49b50dba9f"},"schema_version":"1.0"},"canonical_sha256":"3a5d50de56861cd557f15e0230f33976d2da011125e637267670226fc7623ed4","source":{"kind":"arxiv","id":"1906.12292","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.12292","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"arxiv_version","alias_value":"1906.12292v2","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.12292","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"pith_short_12","alias_value":"HJOVBXSWQYON","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"pith_short_16","alias_value":"HJOVBXSWQYONKV7R","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"pith_short_8","alias_value":"HJOVBXSW","created_at":"2026-07-05T00:03:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:HJOVBXSWQYONKV7RLYBDB4ZZO3","target":"record","payload":{"canonical_record":{"source":{"id":"1906.12292","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-06-28T16:28:15Z","cross_cats_sorted":[],"title_canon_sha256":"faf3d724ec9b56417ca2f7931f6e7c1909d6c77da1d342ecac0647038b866fec","abstract_canon_sha256":"e4cb904a7241e5e902dedc84a80f415be49c7f7ad8e5b66be929ed49b50dba9f"},"schema_version":"1.0"},"canonical_sha256":"3a5d50de56861cd557f15e0230f33976d2da011125e637267670226fc7623ed4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:03:16.094110Z","signature_b64":"lMLJ+e6khf1a4XW/zydi5jxv/GSsktgQX6O6xUUMYdyXGbbqGuG6+wBhgS7A7WJrY6DPx/ma6hAn6rZtspeQAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a5d50de56861cd557f15e0230f33976d2da011125e637267670226fc7623ed4","last_reissued_at":"2026-07-05T00:03:16.093578Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:03:16.093578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.12292","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":"2026-07-05T00:03:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zukMxYdJAzkEtZubOG43WIiEtrl5BTVJJyVyF4RXKOR+T/NjYupP6sEk78N65oeLcGIJgkP8RQJ43CapZEalCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:18:14.961360Z"},"content_sha256":"0f8f2980f0efd595fa74a53c64a60fedb76ef00849ae7ec6b40f961502fc6718","schema_version":"1.0","event_id":"sha256:0f8f2980f0efd595fa74a53c64a60fedb76ef00849ae7ec6b40f961502fc6718"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:HJOVBXSWQYONKV7RLYBDB4ZZO3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Double copy for massive quantum particles with spin","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Alexander Ochirov, Henrik Johansson","submitted_at":"2019-06-28T16:28:15Z","abstract_excerpt":"The duality between color and kinematics was originally observed for purely adjoint massless gauge theories, and later found to hold even after introducing massive fermionic and scalar matter in arbitrary gauge-group representations. Such a generalization was critical for obtaining both loop amplitudes in pure Einstein gravity and realistic gravitational matter from the double copy. In this paper we elaborate on the double copy that yields amplitudes in gravitational theories coupled to flavored massive matter with spin, which is relevant to the problems of black-hole scattering and gravitatio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.12292","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/1906.12292/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":"2026-07-05T00:03:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"meITi2Z9+8vT1UEwxwkQswOyY6vsyuMHCwvAP8nRv2ynjrfDCbW4TtyKzN1APmCLHewadsp/ZiTXGcysC2KNCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:18:14.962247Z"},"content_sha256":"3d95671fc3d1428f5de42c87e7ad33e09be3c1a50ae2838edb3797003b54d63c","schema_version":"1.0","event_id":"sha256:3d95671fc3d1428f5de42c87e7ad33e09be3c1a50ae2838edb3797003b54d63c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HJOVBXSWQYONKV7RLYBDB4ZZO3/bundle.json","state_url":"https://pith.science/pith/HJOVBXSWQYONKV7RLYBDB4ZZO3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HJOVBXSWQYONKV7RLYBDB4ZZO3/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":"2026-08-03T15:18:14Z","links":{"resolver":"https://pith.science/pith/HJOVBXSWQYONKV7RLYBDB4ZZO3","bundle":"https://pith.science/pith/HJOVBXSWQYONKV7RLYBDB4ZZO3/bundle.json","state":"https://pith.science/pith/HJOVBXSWQYONKV7RLYBDB4ZZO3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HJOVBXSWQYONKV7RLYBDB4ZZO3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:HJOVBXSWQYONKV7RLYBDB4ZZO3","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":"e4cb904a7241e5e902dedc84a80f415be49c7f7ad8e5b66be929ed49b50dba9f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-06-28T16:28:15Z","title_canon_sha256":"faf3d724ec9b56417ca2f7931f6e7c1909d6c77da1d342ecac0647038b866fec"},"schema_version":"1.0","source":{"id":"1906.12292","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.12292","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"arxiv_version","alias_value":"1906.12292v2","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.12292","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"pith_short_12","alias_value":"HJOVBXSWQYON","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"pith_short_16","alias_value":"HJOVBXSWQYONKV7R","created_at":"2026-07-05T00:03:16Z"},{"alias_kind":"pith_short_8","alias_value":"HJOVBXSW","created_at":"2026-07-05T00:03:16Z"}],"graph_snapshots":[{"event_id":"sha256:3d95671fc3d1428f5de42c87e7ad33e09be3c1a50ae2838edb3797003b54d63c","target":"graph","created_at":"2026-07-05T00:03:16Z","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/1906.12292/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The duality between color and kinematics was originally observed for purely adjoint massless gauge theories, and later found to hold even after introducing massive fermionic and scalar matter in arbitrary gauge-group representations. Such a generalization was critical for obtaining both loop amplitudes in pure Einstein gravity and realistic gravitational matter from the double copy. In this paper we elaborate on the double copy that yields amplitudes in gravitational theories coupled to flavored massive matter with spin, which is relevant to the problems of black-hole scattering and gravitatio","authors_text":"Alexander Ochirov, Henrik Johansson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-06-28T16:28:15Z","title":"Double copy for massive quantum particles with spin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.12292","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":"sha256:0f8f2980f0efd595fa74a53c64a60fedb76ef00849ae7ec6b40f961502fc6718","target":"record","created_at":"2026-07-05T00:03:16Z","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":"e4cb904a7241e5e902dedc84a80f415be49c7f7ad8e5b66be929ed49b50dba9f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-06-28T16:28:15Z","title_canon_sha256":"faf3d724ec9b56417ca2f7931f6e7c1909d6c77da1d342ecac0647038b866fec"},"schema_version":"1.0","source":{"id":"1906.12292","kind":"arxiv","version":2}},"canonical_sha256":"3a5d50de56861cd557f15e0230f33976d2da011125e637267670226fc7623ed4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a5d50de56861cd557f15e0230f33976d2da011125e637267670226fc7623ed4","first_computed_at":"2026-07-05T00:03:16.093578Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:03:16.093578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lMLJ+e6khf1a4XW/zydi5jxv/GSsktgQX6O6xUUMYdyXGbbqGuG6+wBhgS7A7WJrY6DPx/ma6hAn6rZtspeQAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:03:16.094110Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.12292","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0f8f2980f0efd595fa74a53c64a60fedb76ef00849ae7ec6b40f961502fc6718","sha256:3d95671fc3d1428f5de42c87e7ad33e09be3c1a50ae2838edb3797003b54d63c"],"state_sha256":"152b704efa04ab1df03c37c30c89501bf7eeb038b8077c3e001217b82a28f333"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sWnWZEQMoz9CNOJ6aBShm3UX7tM2+7liUNy3w0T2Zo+dy5MhKT6BmGPIFpmC2AL9D6lx6LchpwXZSHK506voBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T15:18:14.969542Z","bundle_sha256":"2c3b0385dfdcb2447a8921fd577aaf724ec507e987802240b227756e10bed404"}}