{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:DZEBILFUV3OU4SYI65UGMK5UBJ","short_pith_number":"pith:DZEBILFU","canonical_record":{"source":{"id":"1802.07347","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-02-20T21:49:00Z","cross_cats_sorted":["cond-mat.str-el","hep-ph"],"title_canon_sha256":"caa988da5b59dd4bdbbad5031f4afd0bce981bca4c178186e5d36e1a7b754bb2","abstract_canon_sha256":"9481a9e26cd99e3bc8373220b61e754498f60e46891de95d93ae8caadada1056"},"schema_version":"1.0"},"canonical_sha256":"1e48142cb4aedd4e4b08f768662bb40a6738ef053039c0dfe38fe94eabb4db76","source":{"kind":"arxiv","id":"1802.07347","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.07347","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"arxiv_version","alias_value":"1802.07347v3","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.07347","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"pith_short_12","alias_value":"DZEBILFUV3OU","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"pith_short_16","alias_value":"DZEBILFUV3OU4SYI","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"pith_short_8","alias_value":"DZEBILFU","created_at":"2026-07-05T01:47:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:DZEBILFUV3OU4SYI65UGMK5UBJ","target":"record","payload":{"canonical_record":{"source":{"id":"1802.07347","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-02-20T21:49:00Z","cross_cats_sorted":["cond-mat.str-el","hep-ph"],"title_canon_sha256":"caa988da5b59dd4bdbbad5031f4afd0bce981bca4c178186e5d36e1a7b754bb2","abstract_canon_sha256":"9481a9e26cd99e3bc8373220b61e754498f60e46891de95d93ae8caadada1056"},"schema_version":"1.0"},"canonical_sha256":"1e48142cb4aedd4e4b08f768662bb40a6738ef053039c0dfe38fe94eabb4db76","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:47:28.067941Z","signature_b64":"jtfDupKMwNu8W/sMyytTfsw2rTjXj5AACcIQ8j72WHMo2JQXJRFfeBY9nN18gQXWEQhEg7eKX3U2IzTC0MgMCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e48142cb4aedd4e4b08f768662bb40a6738ef053039c0dfe38fe94eabb4db76","last_reissued_at":"2026-07-05T01:47:28.067518Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:47:28.067518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.07347","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:47:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sDuWZAuzG+G+hXUz5aF/S6VMulfJDX/zIrhffFH78nP1+tz+cBM0c7cF7Oz3ktKddGabtF1unaeaZoGztvPuAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T11:44:07.355650Z"},"content_sha256":"177e541b192e79ac7736ffdad0b00811f5f762fbcff69a61e3a6bcb790f7c287","schema_version":"1.0","event_id":"sha256:177e541b192e79ac7736ffdad0b00811f5f762fbcff69a61e3a6bcb790f7c287"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:DZEBILFUV3OU4SYI65UGMK5UBJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electron-Phonon Systems on a Universal Quantum Computer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el","hep-ph"],"primary_cat":"quant-ph","authors_text":"Alexandru Macridin, James Amundson, Panagiotis Spentzouris, Roni Harnik","submitted_at":"2018-02-20T21:49:00Z","abstract_excerpt":"We present an algorithm that extends existing quantum algorithms for simulating fermion systems in quantum chemistry and condensed matter physics to include bosons in general and phonons in particular. We introduce a qubit representation for the low-energy subspace of phonons which allows an efficient simulation of the evolution operator of the electron-phonon systems. As a consequence of the Nyquist-Shannon sampling theorem, the phonons are represented with exponential accuracy on a discretized Hilbert space with a size that increases linearly with the cutoff of the maximum phonon number. The"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.07347","kind":"arxiv","version":3},"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/1802.07347/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":"2026-07-05T01:47:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zr3APcqwQ03uGJ2staAIkG5+B6RMFMLCMIEE29VQ0mb3qQkaXa9o0FRtvz6iapcFl1PAlnBaJyLu6Yke2h7rAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T11:44:07.356703Z"},"content_sha256":"084fe5a94c1d3fac5101dee5e7cb8483a9482dc7881b3cbaf00d7240c1b62620","schema_version":"1.0","event_id":"sha256:084fe5a94c1d3fac5101dee5e7cb8483a9482dc7881b3cbaf00d7240c1b62620"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DZEBILFUV3OU4SYI65UGMK5UBJ/bundle.json","state_url":"https://pith.science/pith/DZEBILFUV3OU4SYI65UGMK5UBJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DZEBILFUV3OU4SYI65UGMK5UBJ/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":"2026-08-05T11:44:07Z","links":{"resolver":"https://pith.science/pith/DZEBILFUV3OU4SYI65UGMK5UBJ","bundle":"https://pith.science/pith/DZEBILFUV3OU4SYI65UGMK5UBJ/bundle.json","state":"https://pith.science/pith/DZEBILFUV3OU4SYI65UGMK5UBJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DZEBILFUV3OU4SYI65UGMK5UBJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DZEBILFUV3OU4SYI65UGMK5UBJ","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":"9481a9e26cd99e3bc8373220b61e754498f60e46891de95d93ae8caadada1056","cross_cats_sorted":["cond-mat.str-el","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-02-20T21:49:00Z","title_canon_sha256":"caa988da5b59dd4bdbbad5031f4afd0bce981bca4c178186e5d36e1a7b754bb2"},"schema_version":"1.0","source":{"id":"1802.07347","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.07347","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"arxiv_version","alias_value":"1802.07347v3","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.07347","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"pith_short_12","alias_value":"DZEBILFUV3OU","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"pith_short_16","alias_value":"DZEBILFUV3OU4SYI","created_at":"2026-07-05T01:47:28Z"},{"alias_kind":"pith_short_8","alias_value":"DZEBILFU","created_at":"2026-07-05T01:47:28Z"}],"graph_snapshots":[{"event_id":"sha256:084fe5a94c1d3fac5101dee5e7cb8483a9482dc7881b3cbaf00d7240c1b62620","target":"graph","created_at":"2026-07-05T01:47:28Z","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/1802.07347/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present an algorithm that extends existing quantum algorithms for simulating fermion systems in quantum chemistry and condensed matter physics to include bosons in general and phonons in particular. We introduce a qubit representation for the low-energy subspace of phonons which allows an efficient simulation of the evolution operator of the electron-phonon systems. As a consequence of the Nyquist-Shannon sampling theorem, the phonons are represented with exponential accuracy on a discretized Hilbert space with a size that increases linearly with the cutoff of the maximum phonon number. The","authors_text":"Alexandru Macridin, James Amundson, Panagiotis Spentzouris, Roni Harnik","cross_cats":["cond-mat.str-el","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-02-20T21:49:00Z","title":"Electron-Phonon Systems on a Universal Quantum Computer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.07347","kind":"arxiv","version":3},"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":"sha256:177e541b192e79ac7736ffdad0b00811f5f762fbcff69a61e3a6bcb790f7c287","target":"record","created_at":"2026-07-05T01:47:28Z","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":"9481a9e26cd99e3bc8373220b61e754498f60e46891de95d93ae8caadada1056","cross_cats_sorted":["cond-mat.str-el","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-02-20T21:49:00Z","title_canon_sha256":"caa988da5b59dd4bdbbad5031f4afd0bce981bca4c178186e5d36e1a7b754bb2"},"schema_version":"1.0","source":{"id":"1802.07347","kind":"arxiv","version":3}},"canonical_sha256":"1e48142cb4aedd4e4b08f768662bb40a6738ef053039c0dfe38fe94eabb4db76","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e48142cb4aedd4e4b08f768662bb40a6738ef053039c0dfe38fe94eabb4db76","first_computed_at":"2026-07-05T01:47:28.067518Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:47:28.067518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jtfDupKMwNu8W/sMyytTfsw2rTjXj5AACcIQ8j72WHMo2JQXJRFfeBY9nN18gQXWEQhEg7eKX3U2IzTC0MgMCg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:47:28.067941Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.07347","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:177e541b192e79ac7736ffdad0b00811f5f762fbcff69a61e3a6bcb790f7c287","sha256:084fe5a94c1d3fac5101dee5e7cb8483a9482dc7881b3cbaf00d7240c1b62620"],"state_sha256":"bdca2eeda3208ae2a58d6f54fd1c66db9d08c649f0042beb56573acf54bb4e3e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LE1jCyEmnMPKMjOC9Ar3pN/I1rgdz8gpQuBhKAf1dJwPwUnf17tlyVmVJVFVBqUMNU7fIAiq6amqI9sAsJx3Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T11:44:07.362348Z","bundle_sha256":"413a3f8ddb1db62d1ac00f36e6a68de0908886ef43cb00c31706263604cf1ea4"}}