{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:BGIHLOFGF3S3F757KEOWDHCC72","short_pith_number":"pith:BGIHLOFG","canonical_record":{"source":{"id":"2010.07861","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-10-15T16:26:41Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"8d44e1888135a74cf310ed62393fd84f79fd93afc50bce73ef82d6a5d4890aa1","abstract_canon_sha256":"0e054e92688cbb935a505c6d98ffefa4b2c0f9e190c3b6a8e283f3e51b980ec9"},"schema_version":"1.0"},"canonical_sha256":"099075b8a62ee5b2ffbf511d619c42fea46dbfbf498679bec9716ea4ed3fb8c4","source":{"kind":"arxiv","id":"2010.07861","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.07861","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"arxiv_version","alias_value":"2010.07861v2","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.07861","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"pith_short_12","alias_value":"BGIHLOFGF3S3","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"pith_short_16","alias_value":"BGIHLOFGF3S3F757","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"pith_short_8","alias_value":"BGIHLOFG","created_at":"2026-07-05T01:43:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:BGIHLOFGF3S3F757KEOWDHCC72","target":"record","payload":{"canonical_record":{"source":{"id":"2010.07861","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-10-15T16:26:41Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"8d44e1888135a74cf310ed62393fd84f79fd93afc50bce73ef82d6a5d4890aa1","abstract_canon_sha256":"0e054e92688cbb935a505c6d98ffefa4b2c0f9e190c3b6a8e283f3e51b980ec9"},"schema_version":"1.0"},"canonical_sha256":"099075b8a62ee5b2ffbf511d619c42fea46dbfbf498679bec9716ea4ed3fb8c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:43:59.982886Z","signature_b64":"hJOz5kdyA/uSPvRpOlAxVkPLhVWazCVd5kkyO895TqDjUA2g+bUP9MkYFdNDYSgxmiusvBeYwc/eHBK2Dz7NAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"099075b8a62ee5b2ffbf511d619c42fea46dbfbf498679bec9716ea4ed3fb8c4","last_reissued_at":"2026-07-05T01:43:59.982503Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:43:59.982503Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.07861","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":"2026-07-05T01:43:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HuLhbret2kgRrhZm03JOPfYp6/k8bb2epPNNzelX4Vl8+hk4HB+NtJjI90DHd/wl5V+T53Ymm0IX4UckYYbfDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T17:04:00.983279Z"},"content_sha256":"560698b64dc8e4352113a8062713a7a49615641e09bc63ecb317aa897e44b671","schema_version":"1.0","event_id":"sha256:560698b64dc8e4352113a8062713a7a49615641e09bc63ecb317aa897e44b671"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:BGIHLOFGF3S3F757KEOWDHCC72","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Amplitudes from Coulomb to Kerr-Taub-NUT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Donal O'Connell, Nathan Moynihan, Uri Kol, William T. Emond, Yu-tin Huang","submitted_at":"2020-10-15T16:26:41Z","abstract_excerpt":"Electric-magnetic duality, the Newman-Janis shift, and the double copy all act by elementary operations on three-point amplitudes. At the same time, they generate a network of interesting classical solutions spanning from the Coulomb charge via the dyon to the Kerr-Taub-NUT spacetime. We identify the amplitudes corresponding to each of these solutions, working to all orders in spin, but to leading perturbative order. We confirm that the amplitudes double-copy when the solutions are related by the classical double copy. Along the way we show that the Kerr-Taub-NUT solution corresponds to a grav"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.07861","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/2010.07861/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":"2026-07-05T01:43:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"98tjsWX9eGRxSYTT71t42f7uOpDPbkJapMnHfUYSYBbaF21mwMvd8HYCkgFLgTPBKC6Nxlx4nV4q+3Ud5hS7Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T17:04:00.983805Z"},"content_sha256":"e1b044c9564c5eeb1b39816ac593ff367fd2fe6cd1fa3e5a6fae492c884e9cdb","schema_version":"1.0","event_id":"sha256:e1b044c9564c5eeb1b39816ac593ff367fd2fe6cd1fa3e5a6fae492c884e9cdb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BGIHLOFGF3S3F757KEOWDHCC72/bundle.json","state_url":"https://pith.science/pith/BGIHLOFGF3S3F757KEOWDHCC72/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BGIHLOFGF3S3F757KEOWDHCC72/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":"2026-08-11T17:04:00Z","links":{"resolver":"https://pith.science/pith/BGIHLOFGF3S3F757KEOWDHCC72","bundle":"https://pith.science/pith/BGIHLOFGF3S3F757KEOWDHCC72/bundle.json","state":"https://pith.science/pith/BGIHLOFGF3S3F757KEOWDHCC72/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BGIHLOFGF3S3F757KEOWDHCC72/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:BGIHLOFGF3S3F757KEOWDHCC72","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":"0e054e92688cbb935a505c6d98ffefa4b2c0f9e190c3b6a8e283f3e51b980ec9","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-10-15T16:26:41Z","title_canon_sha256":"8d44e1888135a74cf310ed62393fd84f79fd93afc50bce73ef82d6a5d4890aa1"},"schema_version":"1.0","source":{"id":"2010.07861","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.07861","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"arxiv_version","alias_value":"2010.07861v2","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.07861","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"pith_short_12","alias_value":"BGIHLOFGF3S3","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"pith_short_16","alias_value":"BGIHLOFGF3S3F757","created_at":"2026-07-05T01:43:59Z"},{"alias_kind":"pith_short_8","alias_value":"BGIHLOFG","created_at":"2026-07-05T01:43:59Z"}],"graph_snapshots":[{"event_id":"sha256:e1b044c9564c5eeb1b39816ac593ff367fd2fe6cd1fa3e5a6fae492c884e9cdb","target":"graph","created_at":"2026-07-05T01:43:59Z","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/2010.07861/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Electric-magnetic duality, the Newman-Janis shift, and the double copy all act by elementary operations on three-point amplitudes. At the same time, they generate a network of interesting classical solutions spanning from the Coulomb charge via the dyon to the Kerr-Taub-NUT spacetime. We identify the amplitudes corresponding to each of these solutions, working to all orders in spin, but to leading perturbative order. We confirm that the amplitudes double-copy when the solutions are related by the classical double copy. Along the way we show that the Kerr-Taub-NUT solution corresponds to a grav","authors_text":"Donal O'Connell, Nathan Moynihan, Uri Kol, William T. Emond, Yu-tin Huang","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-10-15T16:26:41Z","title":"Amplitudes from Coulomb to Kerr-Taub-NUT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.07861","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":"sha256:560698b64dc8e4352113a8062713a7a49615641e09bc63ecb317aa897e44b671","target":"record","created_at":"2026-07-05T01:43:59Z","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":"0e054e92688cbb935a505c6d98ffefa4b2c0f9e190c3b6a8e283f3e51b980ec9","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-10-15T16:26:41Z","title_canon_sha256":"8d44e1888135a74cf310ed62393fd84f79fd93afc50bce73ef82d6a5d4890aa1"},"schema_version":"1.0","source":{"id":"2010.07861","kind":"arxiv","version":2}},"canonical_sha256":"099075b8a62ee5b2ffbf511d619c42fea46dbfbf498679bec9716ea4ed3fb8c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"099075b8a62ee5b2ffbf511d619c42fea46dbfbf498679bec9716ea4ed3fb8c4","first_computed_at":"2026-07-05T01:43:59.982503Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:43:59.982503Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hJOz5kdyA/uSPvRpOlAxVkPLhVWazCVd5kkyO895TqDjUA2g+bUP9MkYFdNDYSgxmiusvBeYwc/eHBK2Dz7NAA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:43:59.982886Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.07861","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:560698b64dc8e4352113a8062713a7a49615641e09bc63ecb317aa897e44b671","sha256:e1b044c9564c5eeb1b39816ac593ff367fd2fe6cd1fa3e5a6fae492c884e9cdb"],"state_sha256":"611846f89a4aba3eef36a20a6149e0e89224b868034b68c6ab30285a6ad0528e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0Z/NWDGxEM0SK5GLIXboaq5i3jXU2v/xn/rYTI65mSIjVW3X7+3z9o9v/rMwaWgVw15Ffneb2ZsWDDXHtby4AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T17:04:00.989074Z","bundle_sha256":"c1138fa6c0605fdace79d976a115f130b55b5ecb4905ee7d94996a3d28e7d067"}}