{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:TYOAVPNE6M5AVWNNQOI7OWU5HR","short_pith_number":"pith:TYOAVPNE","canonical_record":{"source":{"id":"2606.22713","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-21T23:19:53Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"da92ab541d7ea8f7eecae912f86c5bed5179487a90f7b54180cf399de47159ba","abstract_canon_sha256":"a3a48536c774d4cf203223f6329b200b1e5f65a57a7e6010d5fcd1da000a0f68"},"schema_version":"1.0"},"canonical_sha256":"9e1c0abda4f33a0ad9ad8391f75a9d3c468381cf7d0499bbaa614c015aeb8129","source":{"kind":"arxiv","id":"2606.22713","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22713","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22713v1","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22713","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"pith_short_12","alias_value":"TYOAVPNE6M5A","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"pith_short_16","alias_value":"TYOAVPNE6M5AVWNN","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"pith_short_8","alias_value":"TYOAVPNE","created_at":"2026-06-23T02:13:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:TYOAVPNE6M5AVWNNQOI7OWU5HR","target":"record","payload":{"canonical_record":{"source":{"id":"2606.22713","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-21T23:19:53Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"da92ab541d7ea8f7eecae912f86c5bed5179487a90f7b54180cf399de47159ba","abstract_canon_sha256":"a3a48536c774d4cf203223f6329b200b1e5f65a57a7e6010d5fcd1da000a0f68"},"schema_version":"1.0"},"canonical_sha256":"9e1c0abda4f33a0ad9ad8391f75a9d3c468381cf7d0499bbaa614c015aeb8129","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T02:13:45.460658Z","signature_b64":"RycnUIS+0Yw4AV5Sh5oYQf74zHfX8MF6C2VQnA2+TPnBrwCABbok7j3+xW8mtgbasuBmZx0Ha8zU1DXH0A8IDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e1c0abda4f33a0ad9ad8391f75a9d3c468381cf7d0499bbaa614c015aeb8129","last_reissued_at":"2026-06-23T02:13:45.460235Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T02:13:45.460235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.22713","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":"2026-06-23T02:13:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"plP0o31xqbeW6Khh6SJxekQcHo8t5nFsd+TtfMOAk4ocASGGqF9qXuVRs53Af7FXHHMSYS/MnP7tjwErSh2vBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T19:45:02.200216Z"},"content_sha256":"23fbd12e3ba30cf47ed0aa44a70181d5bcc44e36bbbb3ed3819624d3495deadb","schema_version":"1.0","event_id":"sha256:23fbd12e3ba30cf47ed0aa44a70181d5bcc44e36bbbb3ed3819624d3495deadb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:TYOAVPNE6M5AVWNNQOI7OWU5HR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An interpretable closed form for entanglement entropy from bitstrings, guided by a graph neural network","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"quant-ph","authors_text":"Anas Saleh","submitted_at":"2026-06-21T23:19:53Z","abstract_excerpt":"The empirical bitstring distribution is the most accessible observable on Rydberg-atom arrays, but the bipartite von~Neumann entropy it constrains is far costlier to obtain. We present a six-term linear closed form for the entropy, built on bitstring-derivable physics scalars, and characterize its accuracy, portability, scaling behaviour, and calibration cost. The feature set is selected with guidance from a trained graph neural network: probing the network localizes its entropy prediction to the two-point correlators on the bipartition boundary, and an exhaustive ground-truth search restricte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22713","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/2606.22713/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":"2026-06-23T02:13:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v0n5BILZrZjbtXO2vFJJ3x0DNM7bt4YBf1iI/ILC2NUo/wThgjkmLSUwGe6xY3s070+v/CNx9vB1vMIYVHRiCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T19:45:02.200603Z"},"content_sha256":"af681a6996d686010dce837b4d83776bbc56059682466f66442b2a0920015c92","schema_version":"1.0","event_id":"sha256:af681a6996d686010dce837b4d83776bbc56059682466f66442b2a0920015c92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TYOAVPNE6M5AVWNNQOI7OWU5HR/bundle.json","state_url":"https://pith.science/pith/TYOAVPNE6M5AVWNNQOI7OWU5HR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TYOAVPNE6M5AVWNNQOI7OWU5HR/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":"2026-06-30T19:45:02Z","links":{"resolver":"https://pith.science/pith/TYOAVPNE6M5AVWNNQOI7OWU5HR","bundle":"https://pith.science/pith/TYOAVPNE6M5AVWNNQOI7OWU5HR/bundle.json","state":"https://pith.science/pith/TYOAVPNE6M5AVWNNQOI7OWU5HR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TYOAVPNE6M5AVWNNQOI7OWU5HR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:TYOAVPNE6M5AVWNNQOI7OWU5HR","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":"a3a48536c774d4cf203223f6329b200b1e5f65a57a7e6010d5fcd1da000a0f68","cross_cats_sorted":["physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-21T23:19:53Z","title_canon_sha256":"da92ab541d7ea8f7eecae912f86c5bed5179487a90f7b54180cf399de47159ba"},"schema_version":"1.0","source":{"id":"2606.22713","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22713","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22713v1","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22713","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"pith_short_12","alias_value":"TYOAVPNE6M5A","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"pith_short_16","alias_value":"TYOAVPNE6M5AVWNN","created_at":"2026-06-23T02:13:45Z"},{"alias_kind":"pith_short_8","alias_value":"TYOAVPNE","created_at":"2026-06-23T02:13:45Z"}],"graph_snapshots":[{"event_id":"sha256:af681a6996d686010dce837b4d83776bbc56059682466f66442b2a0920015c92","target":"graph","created_at":"2026-06-23T02:13:45Z","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/2606.22713/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The empirical bitstring distribution is the most accessible observable on Rydberg-atom arrays, but the bipartite von~Neumann entropy it constrains is far costlier to obtain. We present a six-term linear closed form for the entropy, built on bitstring-derivable physics scalars, and characterize its accuracy, portability, scaling behaviour, and calibration cost. The feature set is selected with guidance from a trained graph neural network: probing the network localizes its entropy prediction to the two-point correlators on the bipartition boundary, and an exhaustive ground-truth search restricte","authors_text":"Anas Saleh","cross_cats":["physics.comp-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-21T23:19:53Z","title":"An interpretable closed form for entanglement entropy from bitstrings, guided by a graph neural network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22713","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":"sha256:23fbd12e3ba30cf47ed0aa44a70181d5bcc44e36bbbb3ed3819624d3495deadb","target":"record","created_at":"2026-06-23T02:13:45Z","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":"a3a48536c774d4cf203223f6329b200b1e5f65a57a7e6010d5fcd1da000a0f68","cross_cats_sorted":["physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-21T23:19:53Z","title_canon_sha256":"da92ab541d7ea8f7eecae912f86c5bed5179487a90f7b54180cf399de47159ba"},"schema_version":"1.0","source":{"id":"2606.22713","kind":"arxiv","version":1}},"canonical_sha256":"9e1c0abda4f33a0ad9ad8391f75a9d3c468381cf7d0499bbaa614c015aeb8129","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e1c0abda4f33a0ad9ad8391f75a9d3c468381cf7d0499bbaa614c015aeb8129","first_computed_at":"2026-06-23T02:13:45.460235Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T02:13:45.460235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RycnUIS+0Yw4AV5Sh5oYQf74zHfX8MF6C2VQnA2+TPnBrwCABbok7j3+xW8mtgbasuBmZx0Ha8zU1DXH0A8IDA==","signature_status":"signed_v1","signed_at":"2026-06-23T02:13:45.460658Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.22713","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23fbd12e3ba30cf47ed0aa44a70181d5bcc44e36bbbb3ed3819624d3495deadb","sha256:af681a6996d686010dce837b4d83776bbc56059682466f66442b2a0920015c92"],"state_sha256":"d4a27f74ce3ad99eae9f008c77c9c9c6e3033d285327d05b8801c718e689fa14"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"07RSZp30TXG2gU5eza3fhwaOJcyu2OxtJicDVyxa463cmPcWSiSa3KSI6RWp8ZFbhjSvpWGOAkFa/7JUBTyNCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T19:45:02.202624Z","bundle_sha256":"c6961109d8f9abd303e6404ab30556de35e8d0ad448c668b7f70ef6ea0042c0a"}}