{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:HBIRAL7FMW6XWPLLO3KZTESH2F","short_pith_number":"pith:HBIRAL7F","canonical_record":{"source":{"id":"0802.0164","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-02-01T15:27:29Z","cross_cats_sorted":[],"title_canon_sha256":"4d026ab26580fbb4f149367469573c9da5e4a7835beddcef7088d55249a01de2","abstract_canon_sha256":"ef07feb283e04357041e4a870051891ccb773ca01e38c28f0bf4fb19bb4120ef"},"schema_version":"1.0"},"canonical_sha256":"3851102fe565bd7b3d6b76d5999247d170e701f30d13e4d158b55df8d1171e23","source":{"kind":"arxiv","id":"0802.0164","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0802.0164","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"arxiv_version","alias_value":"0802.0164v2","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.0164","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"pith_short_12","alias_value":"HBIRAL7FMW6X","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"pith_short_16","alias_value":"HBIRAL7FMW6XWPLL","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"pith_short_8","alias_value":"HBIRAL7F","created_at":"2026-07-04T15:36:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:HBIRAL7FMW6XWPLLO3KZTESH2F","target":"record","payload":{"canonical_record":{"source":{"id":"0802.0164","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-02-01T15:27:29Z","cross_cats_sorted":[],"title_canon_sha256":"4d026ab26580fbb4f149367469573c9da5e4a7835beddcef7088d55249a01de2","abstract_canon_sha256":"ef07feb283e04357041e4a870051891ccb773ca01e38c28f0bf4fb19bb4120ef"},"schema_version":"1.0"},"canonical_sha256":"3851102fe565bd7b3d6b76d5999247d170e701f30d13e4d158b55df8d1171e23","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:36:01.928032Z","signature_b64":"ydMm8ZglAu7fdyIJGnyX+K3+s/Z4lwLnfQpxfSziEzIrJXkCsD7AfDxwPfZvyUTzGIHmuu6XzGpCcSpSHwDvCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3851102fe565bd7b3d6b76d5999247d170e701f30d13e4d158b55df8d1171e23","last_reissued_at":"2026-07-04T15:36:01.927619Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:36:01.927619Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0802.0164","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":"2026-07-04T15:36:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tk3okVfw0gKZvOWPIcfmczHNgbXg0dQ12vB8gjqmfaXXC1nI038FbBWXmckauTNSjzqhlgb69naRO0mOq6ImBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T16:14:04.181188Z"},"content_sha256":"17f1d76560415a7e003b79d7d61741753811f3747afa8439c5da756bd7621aa6","schema_version":"1.0","event_id":"sha256:17f1d76560415a7e003b79d7d61741753811f3747afa8439c5da756bd7621aa6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:HBIRAL7FMW6XWPLLO3KZTESH2F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin observables and spin structure functions: inequalities and dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Jacques Soffer, Jean-Marc Richard, Mokhtar Elchikh, Oleg V. Teryaev, Xavier Artru","submitted_at":"2008-02-01T15:27:29Z","abstract_excerpt":"Model-independent identities and inequalities relating the various spin observables of a reaction are reviewed in a unified formalism, together with their implications for dynamical models, their physical interpretation, and the quantum aspects of the information carried by spins, in particular entanglement. These constraints between observables can be obtained from the explicit expression of the observables in terms of a set of amplitudes, a non-trivial algebraic exercise which can be preceded by numerical simulation with randomly chosen amplitudes, from anticommutation relations, or from the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.0164","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/0802.0164/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":"2026-07-04T15:36:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O0j+OlrE4pTfSMPL5NGkDONLKkIWXU72rDUXNmLyu6BDUwSTAm0+qAyzwc+7/3o7BKjUIkBeRlOLLYVyvctyAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T16:14:04.181690Z"},"content_sha256":"fc675f2a219b53335b52647fe1335132ab3933692d1d37626732d92697a4d612","schema_version":"1.0","event_id":"sha256:fc675f2a219b53335b52647fe1335132ab3933692d1d37626732d92697a4d612"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HBIRAL7FMW6XWPLLO3KZTESH2F/bundle.json","state_url":"https://pith.science/pith/HBIRAL7FMW6XWPLLO3KZTESH2F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HBIRAL7FMW6XWPLLO3KZTESH2F/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":"2026-08-08T16:14:04Z","links":{"resolver":"https://pith.science/pith/HBIRAL7FMW6XWPLLO3KZTESH2F","bundle":"https://pith.science/pith/HBIRAL7FMW6XWPLLO3KZTESH2F/bundle.json","state":"https://pith.science/pith/HBIRAL7FMW6XWPLLO3KZTESH2F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HBIRAL7FMW6XWPLLO3KZTESH2F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:HBIRAL7FMW6XWPLLO3KZTESH2F","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":"ef07feb283e04357041e4a870051891ccb773ca01e38c28f0bf4fb19bb4120ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-02-01T15:27:29Z","title_canon_sha256":"4d026ab26580fbb4f149367469573c9da5e4a7835beddcef7088d55249a01de2"},"schema_version":"1.0","source":{"id":"0802.0164","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0802.0164","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"arxiv_version","alias_value":"0802.0164v2","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0802.0164","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"pith_short_12","alias_value":"HBIRAL7FMW6X","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"pith_short_16","alias_value":"HBIRAL7FMW6XWPLL","created_at":"2026-07-04T15:36:01Z"},{"alias_kind":"pith_short_8","alias_value":"HBIRAL7F","created_at":"2026-07-04T15:36:01Z"}],"graph_snapshots":[{"event_id":"sha256:fc675f2a219b53335b52647fe1335132ab3933692d1d37626732d92697a4d612","target":"graph","created_at":"2026-07-04T15:36:01Z","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/0802.0164/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Model-independent identities and inequalities relating the various spin observables of a reaction are reviewed in a unified formalism, together with their implications for dynamical models, their physical interpretation, and the quantum aspects of the information carried by spins, in particular entanglement. These constraints between observables can be obtained from the explicit expression of the observables in terms of a set of amplitudes, a non-trivial algebraic exercise which can be preceded by numerical simulation with randomly chosen amplitudes, from anticommutation relations, or from the","authors_text":"Jacques Soffer, Jean-Marc Richard, Mokhtar Elchikh, Oleg V. Teryaev, Xavier Artru","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-02-01T15:27:29Z","title":"Spin observables and spin structure functions: inequalities and dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.0164","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":"sha256:17f1d76560415a7e003b79d7d61741753811f3747afa8439c5da756bd7621aa6","target":"record","created_at":"2026-07-04T15:36:01Z","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":"ef07feb283e04357041e4a870051891ccb773ca01e38c28f0bf4fb19bb4120ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-02-01T15:27:29Z","title_canon_sha256":"4d026ab26580fbb4f149367469573c9da5e4a7835beddcef7088d55249a01de2"},"schema_version":"1.0","source":{"id":"0802.0164","kind":"arxiv","version":2}},"canonical_sha256":"3851102fe565bd7b3d6b76d5999247d170e701f30d13e4d158b55df8d1171e23","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3851102fe565bd7b3d6b76d5999247d170e701f30d13e4d158b55df8d1171e23","first_computed_at":"2026-07-04T15:36:01.927619Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:36:01.927619Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ydMm8ZglAu7fdyIJGnyX+K3+s/Z4lwLnfQpxfSziEzIrJXkCsD7AfDxwPfZvyUTzGIHmuu6XzGpCcSpSHwDvCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:36:01.928032Z","signed_message":"canonical_sha256_bytes"},"source_id":"0802.0164","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17f1d76560415a7e003b79d7d61741753811f3747afa8439c5da756bd7621aa6","sha256:fc675f2a219b53335b52647fe1335132ab3933692d1d37626732d92697a4d612"],"state_sha256":"15a87436a1a3294f619b51c39aa38a45b238c005a4ad95e5e367d11a92b7a80b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AzwrGPjUAMiljZODZ4VMJ9lJj5euFKG4Iugqkmcklu+TOSuQckor6Q89fjqU/JkmAqKkYU0bMUBz+F7orXD6Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T16:14:04.186255Z","bundle_sha256":"8ab76e8e46c31d0063d6af6ff303034c47c091508f41a688c4a0cffc28ff11dc"}}