{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:MOUXSDDRQPJD6PYSZB5E22K2O5","short_pith_number":"pith:MOUXSDDR","canonical_record":{"source":{"id":"1502.01925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2015-02-06T15:53:43Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"cf1288a38b5f5b18223a26fcb2a0a0e6bad200e1e5f611e1949c41dbb3ea6d20","abstract_canon_sha256":"5d43d5d2def35d3155866425615e3fa3b61945273d61b9a02aed94807bc79b5e"},"schema_version":"1.0"},"canonical_sha256":"63a9790c7183d23f3f12c87a4d695a77763efeb0a03fe60e98d1a42f15732ef6","source":{"kind":"arxiv","id":"1502.01925","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.01925","created_at":"2026-05-18T02:27:50Z"},{"alias_kind":"arxiv_version","alias_value":"1502.01925v1","created_at":"2026-05-18T02:27:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.01925","created_at":"2026-05-18T02:27:50Z"},{"alias_kind":"pith_short_12","alias_value":"MOUXSDDRQPJD","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MOUXSDDRQPJD6PYS","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MOUXSDDR","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:MOUXSDDRQPJD6PYSZB5E22K2O5","target":"record","payload":{"canonical_record":{"source":{"id":"1502.01925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2015-02-06T15:53:43Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"cf1288a38b5f5b18223a26fcb2a0a0e6bad200e1e5f611e1949c41dbb3ea6d20","abstract_canon_sha256":"5d43d5d2def35d3155866425615e3fa3b61945273d61b9a02aed94807bc79b5e"},"schema_version":"1.0"},"canonical_sha256":"63a9790c7183d23f3f12c87a4d695a77763efeb0a03fe60e98d1a42f15732ef6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:27:50.425513Z","signature_b64":"0rDzS8QClsGC5B/pH5ioOlkK82Q8v0lvnSxhZH/jg7/uHLg5iSAdXVdON+/ADxWjujx3hXGimanmZ2nWS3a8Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63a9790c7183d23f3f12c87a4d695a77763efeb0a03fe60e98d1a42f15732ef6","last_reissued_at":"2026-05-18T02:27:50.425051Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:27:50.425051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.01925","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":"2026-05-18T02:27:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YBcYppDPQrAjsThFWduQE3ITmVYT3iTWwkRtaUQLaga8JUvmPJqVVdOvjFDENwcIlcfFFYHmoFjPnX8b2rriDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:16:21.338751Z"},"content_sha256":"5748bc4b792d35cb5acb4a8836695ae846757dd3f84f285177fbff53d6f19bce","schema_version":"1.0","event_id":"sha256:5748bc4b792d35cb5acb4a8836695ae846757dd3f84f285177fbff53d6f19bce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:MOUXSDDRQPJD6PYSZB5E22K2O5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"International Spin Physics 2014 Summary","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"physics.hist-ph","authors_text":"Richard G. Milner","submitted_at":"2015-02-06T15:53:43Z","abstract_excerpt":"The Stern-Gerlach experiment and the origin of electron spin are described in historical context. SPIN 2014 occurs on the fortieth anniversary of the first International High Energy Spin Physics Symposium at Argonne in 1974. A brief history of the international spin conference series is presented."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.01925","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":""},"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":"2026-05-18T02:27:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GcIxSvj+q3isq4dGzGXw8ch9pwYkGqfcxq6os2Tt09DnhtSzTixhcUeKWPEa5jgChjiLSbKGuv1TeriiM1h8DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:16:21.339096Z"},"content_sha256":"357d3d726931fa77bcc6c909f00af239f2da1572576e6db71978100946a1f88a","schema_version":"1.0","event_id":"sha256:357d3d726931fa77bcc6c909f00af239f2da1572576e6db71978100946a1f88a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MOUXSDDRQPJD6PYSZB5E22K2O5/bundle.json","state_url":"https://pith.science/pith/MOUXSDDRQPJD6PYSZB5E22K2O5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MOUXSDDRQPJD6PYSZB5E22K2O5/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":"2026-06-05T00:16:21Z","links":{"resolver":"https://pith.science/pith/MOUXSDDRQPJD6PYSZB5E22K2O5","bundle":"https://pith.science/pith/MOUXSDDRQPJD6PYSZB5E22K2O5/bundle.json","state":"https://pith.science/pith/MOUXSDDRQPJD6PYSZB5E22K2O5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MOUXSDDRQPJD6PYSZB5E22K2O5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:MOUXSDDRQPJD6PYSZB5E22K2O5","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":"5d43d5d2def35d3155866425615e3fa3b61945273d61b9a02aed94807bc79b5e","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2015-02-06T15:53:43Z","title_canon_sha256":"cf1288a38b5f5b18223a26fcb2a0a0e6bad200e1e5f611e1949c41dbb3ea6d20"},"schema_version":"1.0","source":{"id":"1502.01925","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.01925","created_at":"2026-05-18T02:27:50Z"},{"alias_kind":"arxiv_version","alias_value":"1502.01925v1","created_at":"2026-05-18T02:27:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.01925","created_at":"2026-05-18T02:27:50Z"},{"alias_kind":"pith_short_12","alias_value":"MOUXSDDRQPJD","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MOUXSDDRQPJD6PYS","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MOUXSDDR","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:357d3d726931fa77bcc6c909f00af239f2da1572576e6db71978100946a1f88a","target":"graph","created_at":"2026-05-18T02:27:50Z","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"},"paper":{"abstract_excerpt":"The Stern-Gerlach experiment and the origin of electron spin are described in historical context. SPIN 2014 occurs on the fortieth anniversary of the first International High Energy Spin Physics Symposium at Argonne in 1974. A brief history of the international spin conference series is presented.","authors_text":"Richard G. Milner","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2015-02-06T15:53:43Z","title":"International Spin Physics 2014 Summary"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.01925","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":"sha256:5748bc4b792d35cb5acb4a8836695ae846757dd3f84f285177fbff53d6f19bce","target":"record","created_at":"2026-05-18T02:27:50Z","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":"5d43d5d2def35d3155866425615e3fa3b61945273d61b9a02aed94807bc79b5e","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2015-02-06T15:53:43Z","title_canon_sha256":"cf1288a38b5f5b18223a26fcb2a0a0e6bad200e1e5f611e1949c41dbb3ea6d20"},"schema_version":"1.0","source":{"id":"1502.01925","kind":"arxiv","version":1}},"canonical_sha256":"63a9790c7183d23f3f12c87a4d695a77763efeb0a03fe60e98d1a42f15732ef6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63a9790c7183d23f3f12c87a4d695a77763efeb0a03fe60e98d1a42f15732ef6","first_computed_at":"2026-05-18T02:27:50.425051Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:27:50.425051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0rDzS8QClsGC5B/pH5ioOlkK82Q8v0lvnSxhZH/jg7/uHLg5iSAdXVdON+/ADxWjujx3hXGimanmZ2nWS3a8Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T02:27:50.425513Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.01925","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5748bc4b792d35cb5acb4a8836695ae846757dd3f84f285177fbff53d6f19bce","sha256:357d3d726931fa77bcc6c909f00af239f2da1572576e6db71978100946a1f88a"],"state_sha256":"1aaef972753247e915fea7e34457190bc3f251c9c021b01a46cd2bbb3453ae33"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"duzmy/NXiQ4N3M9wNyXx2c53Egs84OiYuhXjNEzze+3TBxJonnF0C4vDGqnNuBVMXnliEyLPgdaeHUAiSAcNCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T00:16:21.341017Z","bundle_sha256":"c7c23919a265a7aa2b480015803d90d77bb1f896d07b36232cc184abfdfea972"}}