{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:R4ZAL6EYMIDZX6IVVJZMDCOF3V","short_pith_number":"pith:R4ZAL6EY","canonical_record":{"source":{"id":"cond-mat/0607209","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2006-07-07T20:01:24Z","cross_cats_sorted":[],"title_canon_sha256":"5d66f35950b82ffa431d6e3208e34d9980816190f57c1a56c6cdf45a50f615bc","abstract_canon_sha256":"cb0456501d0ef34b262208a216c0dc7356ccc4a06cf3fb280758a5ff0f6a10a4"},"schema_version":"1.0"},"canonical_sha256":"8f3205f89862079bf915aa72c189c5dd42f78631797d9381276300271b946b3a","source":{"kind":"arxiv","id":"cond-mat/0607209","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0607209","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0607209v1","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0607209","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"pith_short_12","alias_value":"R4ZAL6EYMIDZ","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"pith_short_16","alias_value":"R4ZAL6EYMIDZX6IV","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"pith_short_8","alias_value":"R4ZAL6EY","created_at":"2026-07-04T15:02:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:R4ZAL6EYMIDZX6IVVJZMDCOF3V","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0607209","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2006-07-07T20:01:24Z","cross_cats_sorted":[],"title_canon_sha256":"5d66f35950b82ffa431d6e3208e34d9980816190f57c1a56c6cdf45a50f615bc","abstract_canon_sha256":"cb0456501d0ef34b262208a216c0dc7356ccc4a06cf3fb280758a5ff0f6a10a4"},"schema_version":"1.0"},"canonical_sha256":"8f3205f89862079bf915aa72c189c5dd42f78631797d9381276300271b946b3a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:02:44.397985Z","signature_b64":"1OvIElxb9M8PE1PxZ+HQFYtwjiaC/gFdMJW4y3hPd1Td1kfvD9CZQ3eOHThMuQicEu2bB2p+A2WCegY5MXlKBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f3205f89862079bf915aa72c189c5dd42f78631797d9381276300271b946b3a","last_reissued_at":"2026-07-04T15:02:44.397605Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:02:44.397605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0607209","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":"2026-07-04T15:02:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P9VnBnIQdlxn5+K1GtjZe+lYUnr6LH135f79uybMeH0+mIjgi6t9GZ53mggDVQLELH9+haJlOnp78xDeox7gBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:33:13.588053Z"},"content_sha256":"c7b47a7dcc2086486f84c939da71a332e35548424cf2d5376ca911143155645c","schema_version":"1.0","event_id":"sha256:c7b47a7dcc2086486f84c939da71a332e35548424cf2d5376ca911143155645c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:R4ZAL6EYMIDZX6IVVJZMDCOF3V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase diagram of the spin-Peierls chain with local coupling","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Alan R. Bishop, Alexander Weisse, Georg Hager, Holger Fehske","submitted_at":"2006-07-07T20:01:24Z","abstract_excerpt":"We explore the ground-state phase diagram of a Heisenberg spin chain coupled locally to optical phonons (bond coupling), using large-scale density matrix renormalization group calculations and an extended perturbative analysis. For the quantum phase transition from the spin liquid to the dimerized phase, we find deviations from previous quantum Monte Carlo and flow equation results."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0607209","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/cond-mat/0607209/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":"2026-07-04T15:02:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7FJPVV4lWAbapP8woiV1u4ni1JFcrMyuiWhw4QZVLG320tRtEfvekn6C4S/vrIT9pAKBy3ThM28PO/21RfcWDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:33:13.588894Z"},"content_sha256":"7fc2582e0fc3bb2ba5666235a2df344bb965b44b6c4338c0e1ea804c0080d519","schema_version":"1.0","event_id":"sha256:7fc2582e0fc3bb2ba5666235a2df344bb965b44b6c4338c0e1ea804c0080d519"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R4ZAL6EYMIDZX6IVVJZMDCOF3V/bundle.json","state_url":"https://pith.science/pith/R4ZAL6EYMIDZX6IVVJZMDCOF3V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R4ZAL6EYMIDZX6IVVJZMDCOF3V/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":"2026-08-05T09:33:13Z","links":{"resolver":"https://pith.science/pith/R4ZAL6EYMIDZX6IVVJZMDCOF3V","bundle":"https://pith.science/pith/R4ZAL6EYMIDZX6IVVJZMDCOF3V/bundle.json","state":"https://pith.science/pith/R4ZAL6EYMIDZX6IVVJZMDCOF3V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R4ZAL6EYMIDZX6IVVJZMDCOF3V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:R4ZAL6EYMIDZX6IVVJZMDCOF3V","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":"cb0456501d0ef34b262208a216c0dc7356ccc4a06cf3fb280758a5ff0f6a10a4","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2006-07-07T20:01:24Z","title_canon_sha256":"5d66f35950b82ffa431d6e3208e34d9980816190f57c1a56c6cdf45a50f615bc"},"schema_version":"1.0","source":{"id":"cond-mat/0607209","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0607209","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0607209v1","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0607209","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"pith_short_12","alias_value":"R4ZAL6EYMIDZ","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"pith_short_16","alias_value":"R4ZAL6EYMIDZX6IV","created_at":"2026-07-04T15:02:44Z"},{"alias_kind":"pith_short_8","alias_value":"R4ZAL6EY","created_at":"2026-07-04T15:02:44Z"}],"graph_snapshots":[{"event_id":"sha256:7fc2582e0fc3bb2ba5666235a2df344bb965b44b6c4338c0e1ea804c0080d519","target":"graph","created_at":"2026-07-04T15:02:44Z","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/cond-mat/0607209/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We explore the ground-state phase diagram of a Heisenberg spin chain coupled locally to optical phonons (bond coupling), using large-scale density matrix renormalization group calculations and an extended perturbative analysis. For the quantum phase transition from the spin liquid to the dimerized phase, we find deviations from previous quantum Monte Carlo and flow equation results.","authors_text":"Alan R. Bishop, Alexander Weisse, Georg Hager, Holger Fehske","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2006-07-07T20:01:24Z","title":"Phase diagram of the spin-Peierls chain with local coupling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0607209","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:c7b47a7dcc2086486f84c939da71a332e35548424cf2d5376ca911143155645c","target":"record","created_at":"2026-07-04T15:02:44Z","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":"cb0456501d0ef34b262208a216c0dc7356ccc4a06cf3fb280758a5ff0f6a10a4","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2006-07-07T20:01:24Z","title_canon_sha256":"5d66f35950b82ffa431d6e3208e34d9980816190f57c1a56c6cdf45a50f615bc"},"schema_version":"1.0","source":{"id":"cond-mat/0607209","kind":"arxiv","version":1}},"canonical_sha256":"8f3205f89862079bf915aa72c189c5dd42f78631797d9381276300271b946b3a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f3205f89862079bf915aa72c189c5dd42f78631797d9381276300271b946b3a","first_computed_at":"2026-07-04T15:02:44.397605Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:02:44.397605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1OvIElxb9M8PE1PxZ+HQFYtwjiaC/gFdMJW4y3hPd1Td1kfvD9CZQ3eOHThMuQicEu2bB2p+A2WCegY5MXlKBA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:02:44.397985Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0607209","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c7b47a7dcc2086486f84c939da71a332e35548424cf2d5376ca911143155645c","sha256:7fc2582e0fc3bb2ba5666235a2df344bb965b44b6c4338c0e1ea804c0080d519"],"state_sha256":"8226116c8d89ae212c8140157c23f18ef65cc575077e94701c4441b6d5d4e39a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jpvd/WTrJktGFeF+uwXQxqcDBf9chU+kP7vAioRMYyXfXzN1l2nDsPWiOlcDVpiIoeUYRjLDVpCOlEdMa4ZVCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T09:33:13.592699Z","bundle_sha256":"cc6c64187e4e8e9e47871a71964fa19884355cb491a957279558969b4a5e5c99"}}