{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:AM5PFHDBXLJKCV6QZ6T64IRTZG","short_pith_number":"pith:AM5PFHDB","canonical_record":{"source":{"id":"1908.04870","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-08-13T21:36:21Z","cross_cats_sorted":[],"title_canon_sha256":"163d3b970bb8ff5a897cb163f31c7532389758543449e0f075c793fa0ba2ee3f","abstract_canon_sha256":"6e0a89166d73934f73ac284b511cf6a024bed5255ad592806911acc6f2ed6972"},"schema_version":"1.0"},"canonical_sha256":"033af29c61bad2a157d0cfa7ee2233c9a365f4378d28d43428b70c27b3936773","source":{"kind":"arxiv","id":"1908.04870","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.04870","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"arxiv_version","alias_value":"1908.04870v1","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.04870","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"pith_short_12","alias_value":"AM5PFHDBXLJK","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"pith_short_16","alias_value":"AM5PFHDBXLJKCV6Q","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"pith_short_8","alias_value":"AM5PFHDB","created_at":"2026-07-04T23:55:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:AM5PFHDBXLJKCV6QZ6T64IRTZG","target":"record","payload":{"canonical_record":{"source":{"id":"1908.04870","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-08-13T21:36:21Z","cross_cats_sorted":[],"title_canon_sha256":"163d3b970bb8ff5a897cb163f31c7532389758543449e0f075c793fa0ba2ee3f","abstract_canon_sha256":"6e0a89166d73934f73ac284b511cf6a024bed5255ad592806911acc6f2ed6972"},"schema_version":"1.0"},"canonical_sha256":"033af29c61bad2a157d0cfa7ee2233c9a365f4378d28d43428b70c27b3936773","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:55:57.653768Z","signature_b64":"uUzge8Bt+/GlqKzkxLXDLuudcg9SxwDGvxhIU9PjZDDrTbdLUJlYfBtTf7Ti03T1FWgvrXDds8a8yoe05nfyCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"033af29c61bad2a157d0cfa7ee2233c9a365f4378d28d43428b70c27b3936773","last_reissued_at":"2026-07-04T23:55:57.653303Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:55:57.653303Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.04870","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":"2026-07-04T23:55:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xEhZYecT6Kh3CBImUWqNpDzVljv0mjBAECUXSPIwkw0SiFhjMNSfrCkhaCiI6zfD4OYeQCK4ZCCAjQgeaoNoDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T15:32:20.395380Z"},"content_sha256":"0a58a329286c27eee862d7a87df9667ae736382d46aa62eb0cc818b3549e33f9","schema_version":"1.0","event_id":"sha256:0a58a329286c27eee862d7a87df9667ae736382d46aa62eb0cc818b3549e33f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:AM5PFHDBXLJKCV6QZ6T64IRTZG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Note on the entanglement entropy of higher spins in four dimensions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"J.S.Dowker","submitted_at":"2019-08-13T21:36:21Z","abstract_excerpt":"The spherical entanglement entropy of higher--spin fields conjectured by Benedetti and Casini is shown to follow by extrapolation of already existing low spin expressions. The corresponding fermion formula is also exhibited."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.04870","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.04870/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":"2026-07-04T23:55:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"itBpfqzQQUI2JXQKiD+6M6y+1EOoZikdCLu4eZ/G7eKaXkhFOGG8M8z2h6Tg2Z1ZgFCP55x02t2ExLDfFYQjDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T15:32:20.395861Z"},"content_sha256":"09a1f237ae6579a0ff27ebe36d9f920b1f57ec3864caa0b51705f8852345a0e8","schema_version":"1.0","event_id":"sha256:09a1f237ae6579a0ff27ebe36d9f920b1f57ec3864caa0b51705f8852345a0e8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AM5PFHDBXLJKCV6QZ6T64IRTZG/bundle.json","state_url":"https://pith.science/pith/AM5PFHDBXLJKCV6QZ6T64IRTZG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AM5PFHDBXLJKCV6QZ6T64IRTZG/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":"2026-08-15T15:32:20Z","links":{"resolver":"https://pith.science/pith/AM5PFHDBXLJKCV6QZ6T64IRTZG","bundle":"https://pith.science/pith/AM5PFHDBXLJKCV6QZ6T64IRTZG/bundle.json","state":"https://pith.science/pith/AM5PFHDBXLJKCV6QZ6T64IRTZG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AM5PFHDBXLJKCV6QZ6T64IRTZG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:AM5PFHDBXLJKCV6QZ6T64IRTZG","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":"6e0a89166d73934f73ac284b511cf6a024bed5255ad592806911acc6f2ed6972","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-08-13T21:36:21Z","title_canon_sha256":"163d3b970bb8ff5a897cb163f31c7532389758543449e0f075c793fa0ba2ee3f"},"schema_version":"1.0","source":{"id":"1908.04870","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.04870","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"arxiv_version","alias_value":"1908.04870v1","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.04870","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"pith_short_12","alias_value":"AM5PFHDBXLJK","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"pith_short_16","alias_value":"AM5PFHDBXLJKCV6Q","created_at":"2026-07-04T23:55:57Z"},{"alias_kind":"pith_short_8","alias_value":"AM5PFHDB","created_at":"2026-07-04T23:55:57Z"}],"graph_snapshots":[{"event_id":"sha256:09a1f237ae6579a0ff27ebe36d9f920b1f57ec3864caa0b51705f8852345a0e8","target":"graph","created_at":"2026-07-04T23:55:57Z","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/1908.04870/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The spherical entanglement entropy of higher--spin fields conjectured by Benedetti and Casini is shown to follow by extrapolation of already existing low spin expressions. The corresponding fermion formula is also exhibited.","authors_text":"J.S.Dowker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-08-13T21:36:21Z","title":"Note on the entanglement entropy of higher spins in four dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.04870","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":"sha256:0a58a329286c27eee862d7a87df9667ae736382d46aa62eb0cc818b3549e33f9","target":"record","created_at":"2026-07-04T23:55:57Z","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":"6e0a89166d73934f73ac284b511cf6a024bed5255ad592806911acc6f2ed6972","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-08-13T21:36:21Z","title_canon_sha256":"163d3b970bb8ff5a897cb163f31c7532389758543449e0f075c793fa0ba2ee3f"},"schema_version":"1.0","source":{"id":"1908.04870","kind":"arxiv","version":1}},"canonical_sha256":"033af29c61bad2a157d0cfa7ee2233c9a365f4378d28d43428b70c27b3936773","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"033af29c61bad2a157d0cfa7ee2233c9a365f4378d28d43428b70c27b3936773","first_computed_at":"2026-07-04T23:55:57.653303Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:55:57.653303Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uUzge8Bt+/GlqKzkxLXDLuudcg9SxwDGvxhIU9PjZDDrTbdLUJlYfBtTf7Ti03T1FWgvrXDds8a8yoe05nfyCg==","signature_status":"signed_v1","signed_at":"2026-07-04T23:55:57.653768Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.04870","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a58a329286c27eee862d7a87df9667ae736382d46aa62eb0cc818b3549e33f9","sha256:09a1f237ae6579a0ff27ebe36d9f920b1f57ec3864caa0b51705f8852345a0e8"],"state_sha256":"b1da6d9df7a25099c70c67785e2d2d3abce87082379042aa2fee27aaeabdfb28"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lp5Nrc62zx2xJQo4q9mhZgkuix2PeVFbGPRlQjIDHMB2vaThe4ER++IRiABZmnjBmfzsem95y5E8pnaxnmUBBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T15:32:20.400293Z","bundle_sha256":"b1a2025c629a1219d93996f564b4db25654906d525ba5c6de0e40883c40eebb7"}}