{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:2NF4BO4P7WCRFFZCGWVVOPFZNP","short_pith_number":"pith:2NF4BO4P","canonical_record":{"source":{"id":"2508.00065","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-07-31T18:00:07Z","cross_cats_sorted":["cond-mat.dis-nn"],"title_canon_sha256":"9e801a2fe6f7905b843dad35ad5c2edc62cac066b2181b18b3b792d03fb22886","abstract_canon_sha256":"cf3cb15d0eb55bd2fc759a7fae6604ccb9b2e3dd009c4a7d7d8ac68d0902a729"},"schema_version":"1.0"},"canonical_sha256":"d34bc0bb8ffd8512972235ab573cb96bd1499bc1acaef745fd0556bb5ecd9b1f","source":{"kind":"arxiv","id":"2508.00065","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.00065","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"arxiv_version","alias_value":"2508.00065v2","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.00065","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"pith_short_12","alias_value":"2NF4BO4P7WCR","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"pith_short_16","alias_value":"2NF4BO4P7WCRFFZC","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"pith_short_8","alias_value":"2NF4BO4P","created_at":"2026-06-09T01:05:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:2NF4BO4P7WCRFFZCGWVVOPFZNP","target":"record","payload":{"canonical_record":{"source":{"id":"2508.00065","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-07-31T18:00:07Z","cross_cats_sorted":["cond-mat.dis-nn"],"title_canon_sha256":"9e801a2fe6f7905b843dad35ad5c2edc62cac066b2181b18b3b792d03fb22886","abstract_canon_sha256":"cf3cb15d0eb55bd2fc759a7fae6604ccb9b2e3dd009c4a7d7d8ac68d0902a729"},"schema_version":"1.0"},"canonical_sha256":"d34bc0bb8ffd8512972235ab573cb96bd1499bc1acaef745fd0556bb5ecd9b1f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-09T01:05:08.421416Z","signature_b64":"Gl7AYri+QpFxquiseyZzekYwoSO46Rd7MRJCHk9OVTCYV4X0ry5mN9voLo6WPkRbbiGOm7f7njC1AvV+JDZHDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d34bc0bb8ffd8512972235ab573cb96bd1499bc1acaef745fd0556bb5ecd9b1f","last_reissued_at":"2026-06-09T01:05:08.420887Z","signature_status":"signed_v1","first_computed_at":"2026-06-09T01:05:08.420887Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.00065","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":"2026-06-09T01:05:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LYKecQCkNSdNQk3v4y9rbTRNBg5eHoZmWnwica7K/3VSNT8n/Y+I1RLBXwPH2Wpkjc+Zf/bKw00s20xLv3CyBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T09:22:02.658872Z"},"content_sha256":"9bca0731b23fc7923d1315f185b938f243aeae75eb251e032467a76147ad1a75","schema_version":"1.0","event_id":"sha256:9bca0731b23fc7923d1315f185b938f243aeae75eb251e032467a76147ad1a75"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:2NF4BO4P7WCRFFZCGWVVOPFZNP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Imaginary Time Spectral Transforms for Excited State Preparation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.dis-nn"],"primary_cat":"quant-ph","authors_text":"D. A. Millar, E. Altamura, J. Crain, L. W. Anderson, M. E. Sahin, O. Wallis, S. J. Thomson","submitted_at":"2025-07-31T18:00:07Z","abstract_excerpt":"Excited states of many-body quantum systems play a key role in a wide range of physical and chemical phenomena. Despite this, there is a notable lack of scalable algorithms capable of preparing highly excited eigenstates. To address this challenge, we introduce a general approach that directly targets eigenstates near a chosen energy, applicable to both classical and quantum simulation frameworks. Our approach combines the shift-invert mechanism with imaginary time evolution, enabling the construction of excited states of large many-body quantum systems. We demonstrate the technique classicall"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.00065","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/2508.00065/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":"2026-06-09T01:05:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pmAQULnLSozbMR7peMtwXN9BDh0qL/LtX0j1m3craZF5CiiQn2UoPIY/dLjBp1EC6WNuJshWXxuKxUqHL8LTDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T09:22:02.659236Z"},"content_sha256":"9067c3ef9f49476f56ad46a34cab58d7c2050fce613d99e546b07c0f723c49ad","schema_version":"1.0","event_id":"sha256:9067c3ef9f49476f56ad46a34cab58d7c2050fce613d99e546b07c0f723c49ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2NF4BO4P7WCRFFZCGWVVOPFZNP/bundle.json","state_url":"https://pith.science/pith/2NF4BO4P7WCRFFZCGWVVOPFZNP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2NF4BO4P7WCRFFZCGWVVOPFZNP/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":"2026-06-22T09:22:02Z","links":{"resolver":"https://pith.science/pith/2NF4BO4P7WCRFFZCGWVVOPFZNP","bundle":"https://pith.science/pith/2NF4BO4P7WCRFFZCGWVVOPFZNP/bundle.json","state":"https://pith.science/pith/2NF4BO4P7WCRFFZCGWVVOPFZNP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2NF4BO4P7WCRFFZCGWVVOPFZNP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:2NF4BO4P7WCRFFZCGWVVOPFZNP","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":"cf3cb15d0eb55bd2fc759a7fae6604ccb9b2e3dd009c4a7d7d8ac68d0902a729","cross_cats_sorted":["cond-mat.dis-nn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-07-31T18:00:07Z","title_canon_sha256":"9e801a2fe6f7905b843dad35ad5c2edc62cac066b2181b18b3b792d03fb22886"},"schema_version":"1.0","source":{"id":"2508.00065","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.00065","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"arxiv_version","alias_value":"2508.00065v2","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.00065","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"pith_short_12","alias_value":"2NF4BO4P7WCR","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"pith_short_16","alias_value":"2NF4BO4P7WCRFFZC","created_at":"2026-06-09T01:05:08Z"},{"alias_kind":"pith_short_8","alias_value":"2NF4BO4P","created_at":"2026-06-09T01:05:08Z"}],"graph_snapshots":[{"event_id":"sha256:9067c3ef9f49476f56ad46a34cab58d7c2050fce613d99e546b07c0f723c49ad","target":"graph","created_at":"2026-06-09T01:05:08Z","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/2508.00065/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Excited states of many-body quantum systems play a key role in a wide range of physical and chemical phenomena. Despite this, there is a notable lack of scalable algorithms capable of preparing highly excited eigenstates. To address this challenge, we introduce a general approach that directly targets eigenstates near a chosen energy, applicable to both classical and quantum simulation frameworks. Our approach combines the shift-invert mechanism with imaginary time evolution, enabling the construction of excited states of large many-body quantum systems. We demonstrate the technique classicall","authors_text":"D. A. Millar, E. Altamura, J. Crain, L. W. Anderson, M. E. Sahin, O. Wallis, S. J. Thomson","cross_cats":["cond-mat.dis-nn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-07-31T18:00:07Z","title":"Imaginary Time Spectral Transforms for Excited State Preparation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.00065","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":"sha256:9bca0731b23fc7923d1315f185b938f243aeae75eb251e032467a76147ad1a75","target":"record","created_at":"2026-06-09T01:05:08Z","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":"cf3cb15d0eb55bd2fc759a7fae6604ccb9b2e3dd009c4a7d7d8ac68d0902a729","cross_cats_sorted":["cond-mat.dis-nn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-07-31T18:00:07Z","title_canon_sha256":"9e801a2fe6f7905b843dad35ad5c2edc62cac066b2181b18b3b792d03fb22886"},"schema_version":"1.0","source":{"id":"2508.00065","kind":"arxiv","version":2}},"canonical_sha256":"d34bc0bb8ffd8512972235ab573cb96bd1499bc1acaef745fd0556bb5ecd9b1f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d34bc0bb8ffd8512972235ab573cb96bd1499bc1acaef745fd0556bb5ecd9b1f","first_computed_at":"2026-06-09T01:05:08.420887Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-09T01:05:08.420887Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Gl7AYri+QpFxquiseyZzekYwoSO46Rd7MRJCHk9OVTCYV4X0ry5mN9voLo6WPkRbbiGOm7f7njC1AvV+JDZHDw==","signature_status":"signed_v1","signed_at":"2026-06-09T01:05:08.421416Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.00065","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9bca0731b23fc7923d1315f185b938f243aeae75eb251e032467a76147ad1a75","sha256:9067c3ef9f49476f56ad46a34cab58d7c2050fce613d99e546b07c0f723c49ad"],"state_sha256":"87db6914f06793e1742160ce1bdb41c20188ca53d5be80a4a1a4bee936195658"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p8sYxl5pjID00LBFmYH8v2VbGa7Rm9sXVP0+0VqXUDjJtzznvKJf+O0YW8XtJTW8NLXrOZDLq+QoddWezfnYBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T09:22:02.661273Z","bundle_sha256":"120dbbbbe0e75f9eaf9a07f8e7596b59bca00e29af021c80536a736458a26d13"}}