{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:KUMGULIPYFN57YPARTCQOXNQ5J","short_pith_number":"pith:KUMGULIP","canonical_record":{"source":{"id":"quant-ph/0205182","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2002-05-29T14:21:38Z","cross_cats_sorted":[],"title_canon_sha256":"97dd7a9f57a74a33a79efd86957116c8630548583d185f8a2131e2d8ea594214","abstract_canon_sha256":"5bec487598bdae9577353ccf5323af65c2726284f9ae2261e65ebf22d462ff37"},"schema_version":"1.0"},"canonical_sha256":"55186a2d0fc15bdfe1e08cc5075db0ea60c544d3ced55662b86078a179b1bc0e","source":{"kind":"arxiv","id":"quant-ph/0205182","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0205182","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0205182v1","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0205182","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"KUMGULIPYFN5","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"KUMGULIPYFN57YPA","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"KUMGULIP","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:KUMGULIPYFN57YPARTCQOXNQ5J","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0205182","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2002-05-29T14:21:38Z","cross_cats_sorted":[],"title_canon_sha256":"97dd7a9f57a74a33a79efd86957116c8630548583d185f8a2131e2d8ea594214","abstract_canon_sha256":"5bec487598bdae9577353ccf5323af65c2726284f9ae2261e65ebf22d462ff37"},"schema_version":"1.0"},"canonical_sha256":"55186a2d0fc15bdfe1e08cc5075db0ea60c544d3ced55662b86078a179b1bc0e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:52.368201Z","signature_b64":"10W9IJ37b3MRiA6ATdaPvv2Y9FWYxvukSHPGT17QueFLk5WzIDn9f/1nOwWu9ADKcStK/1nUnNnZDqFkMcP/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"55186a2d0fc15bdfe1e08cc5075db0ea60c544d3ced55662b86078a179b1bc0e","last_reissued_at":"2026-05-18T00:36:52.367725Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:52.367725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0205182","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":"2026-05-18T00:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oHGeMSiz2VKEX10nNxlRFT/X9NMPMr6L+aU6Be/4994lRp/iDv6g4K9r5VtLpMmwO7KVFlbNGFPJFhJ3KsYMBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T01:41:39.109909Z"},"content_sha256":"b070b4a5fec0ebbc46da22c5bba43ec13a0188462f446683771adaec8bf6988c","schema_version":"1.0","event_id":"sha256:b070b4a5fec0ebbc46da22c5bba43ec13a0188462f446683771adaec8bf6988c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:KUMGULIPYFN57YPARTCQOXNQ5J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Time-Reversed EPR and the Choice of Histories in Quantum Mechanics","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Anton Zeilinger, Avshalom C. Elitzur, Shahar Dolev","submitted_at":"2002-05-29T14:21:38Z","abstract_excerpt":"When a single photon is split by a beam splitter, its two `halves' can entangle two distant atoms into an EPR pair. We discuss a time-reversed analogue of this experiment where two distant sources cooperate so as to emit a single photon. The two `half photons,' having interacted with two atoms, can entangle these atoms into an EPR pair once they are detected as a single photon. Entanglement occurs by creating indistinguishabilility between the two mutually exclusive histories of the photon. This indistinguishabilility can be created either at the end of the two histories (by `erasing' the sing"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0205182","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":"2026-05-18T00:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+y5iB09YKlRpP7Tj2NL6JjStJYs3EtskzlI5xHCP5GHse+Pa9e6BGs3I7Y/md6Qb5HcU0JNnK5bopNiS6HLxDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T01:41:39.110624Z"},"content_sha256":"5df7c11e0f7c3adb21c594764632d72ae966dec4e523768144c9ab765434887e","schema_version":"1.0","event_id":"sha256:5df7c11e0f7c3adb21c594764632d72ae966dec4e523768144c9ab765434887e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KUMGULIPYFN57YPARTCQOXNQ5J/bundle.json","state_url":"https://pith.science/pith/KUMGULIPYFN57YPARTCQOXNQ5J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KUMGULIPYFN57YPARTCQOXNQ5J/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":"2026-06-08T01:41:39Z","links":{"resolver":"https://pith.science/pith/KUMGULIPYFN57YPARTCQOXNQ5J","bundle":"https://pith.science/pith/KUMGULIPYFN57YPARTCQOXNQ5J/bundle.json","state":"https://pith.science/pith/KUMGULIPYFN57YPARTCQOXNQ5J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KUMGULIPYFN57YPARTCQOXNQ5J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:KUMGULIPYFN57YPARTCQOXNQ5J","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":"5bec487598bdae9577353ccf5323af65c2726284f9ae2261e65ebf22d462ff37","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2002-05-29T14:21:38Z","title_canon_sha256":"97dd7a9f57a74a33a79efd86957116c8630548583d185f8a2131e2d8ea594214"},"schema_version":"1.0","source":{"id":"quant-ph/0205182","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0205182","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0205182v1","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0205182","created_at":"2026-05-18T00:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"KUMGULIPYFN5","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"KUMGULIPYFN57YPA","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"KUMGULIP","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:5df7c11e0f7c3adb21c594764632d72ae966dec4e523768144c9ab765434887e","target":"graph","created_at":"2026-05-18T00:36:52Z","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":"When a single photon is split by a beam splitter, its two `halves' can entangle two distant atoms into an EPR pair. We discuss a time-reversed analogue of this experiment where two distant sources cooperate so as to emit a single photon. The two `half photons,' having interacted with two atoms, can entangle these atoms into an EPR pair once they are detected as a single photon. Entanglement occurs by creating indistinguishabilility between the two mutually exclusive histories of the photon. This indistinguishabilility can be created either at the end of the two histories (by `erasing' the sing","authors_text":"Anton Zeilinger, Avshalom C. Elitzur, Shahar Dolev","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2002-05-29T14:21:38Z","title":"Time-Reversed EPR and the Choice of Histories in Quantum Mechanics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0205182","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:b070b4a5fec0ebbc46da22c5bba43ec13a0188462f446683771adaec8bf6988c","target":"record","created_at":"2026-05-18T00:36:52Z","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":"5bec487598bdae9577353ccf5323af65c2726284f9ae2261e65ebf22d462ff37","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2002-05-29T14:21:38Z","title_canon_sha256":"97dd7a9f57a74a33a79efd86957116c8630548583d185f8a2131e2d8ea594214"},"schema_version":"1.0","source":{"id":"quant-ph/0205182","kind":"arxiv","version":1}},"canonical_sha256":"55186a2d0fc15bdfe1e08cc5075db0ea60c544d3ced55662b86078a179b1bc0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"55186a2d0fc15bdfe1e08cc5075db0ea60c544d3ced55662b86078a179b1bc0e","first_computed_at":"2026-05-18T00:36:52.367725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:52.367725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"10W9IJ37b3MRiA6ATdaPvv2Y9FWYxvukSHPGT17QueFLk5WzIDn9f/1nOwWu9ADKcStK/1nUnNnZDqFkMcP/Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:52.368201Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0205182","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b070b4a5fec0ebbc46da22c5bba43ec13a0188462f446683771adaec8bf6988c","sha256:5df7c11e0f7c3adb21c594764632d72ae966dec4e523768144c9ab765434887e"],"state_sha256":"15ee93aee8b34a2cc34d2816264ec70ed49e8ee6f2699c056f7280c57b087acd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ub6cxDAhFUXmfrwA6sFZ5sGTJyr5vx3jD2Tm/p6CAlVXUTtcGO73/Hl8GRXP75ds4o3ycJhHkAP4qtr5SPgWDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T01:41:39.114008Z","bundle_sha256":"f5f4eee0ed57bd2327899c6cc1425d3b2a60eaf6e5219738b4bc2bdedee51e49"}}