{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:AHBQOYYJCZRBFFCCKN5RRLGL4P","short_pith_number":"pith:AHBQOYYJ","canonical_record":{"source":{"id":"cond-mat/0007499","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat","submitted_at":"2000-07-31T08:02:56Z","cross_cats_sorted":[],"title_canon_sha256":"cab3bd3bea41a3f02330149c4d8aa750df469d0a768ae59afe1b87c806d3957a","abstract_canon_sha256":"99868643d14e0397597fd79ebbb8c74a1b14d8ce3631ec118c5683cf7d1aa0a7"},"schema_version":"1.0"},"canonical_sha256":"01c30763091662129442537b18accbe3ee80bbad3a32d5cf25d7bf25261ff377","source":{"kind":"arxiv","id":"cond-mat/0007499","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0007499","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0007499v1","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0007499","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"pith_short_12","alias_value":"AHBQOYYJCZRB","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"AHBQOYYJCZRBFFCC","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"AHBQOYYJ","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:AHBQOYYJCZRBFFCCKN5RRLGL4P","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0007499","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat","submitted_at":"2000-07-31T08:02:56Z","cross_cats_sorted":[],"title_canon_sha256":"cab3bd3bea41a3f02330149c4d8aa750df469d0a768ae59afe1b87c806d3957a","abstract_canon_sha256":"99868643d14e0397597fd79ebbb8c74a1b14d8ce3631ec118c5683cf7d1aa0a7"},"schema_version":"1.0"},"canonical_sha256":"01c30763091662129442537b18accbe3ee80bbad3a32d5cf25d7bf25261ff377","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:12.782778Z","signature_b64":"0qX/0b+SBT6t5tiSeQZeDzdnwKdcB6nszO87gBpdbJnLnLNgL9mWiJ9GpOEboE2/h8Kibscs9SYQTEEzeMMRCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01c30763091662129442537b18accbe3ee80bbad3a32d5cf25d7bf25261ff377","last_reissued_at":"2026-05-18T01:07:12.782172Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:12.782172Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0007499","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":"2026-05-18T01:07:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UKHjv6J5sT8oLagOJPBxhkbRf1u5+e+i3iOfGPGXqPz/HfRAJhdsecBOJogco9/nR80Bsd0MytjoDhMNAt7rDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T14:08:12.255115Z"},"content_sha256":"75b2d21cc1fe451b62076f0631eca9e2f501df2291932f75341c73436fedd2d1","schema_version":"1.0","event_id":"sha256:75b2d21cc1fe451b62076f0631eca9e2f501df2291932f75341c73436fedd2d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:AHBQOYYJCZRBFFCCKN5RRLGL4P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ising films with surface defects","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat","authors_text":"I. Peschel, M.-C. Chung, M. Kaulke, M. Pleimling, W. Selke","submitted_at":"2000-07-31T08:02:56Z","abstract_excerpt":"The influence of surface defects on the critical properties of magnetic films is studied for Ising models with nearest-neighbour ferromagnetic couplings. The defects include one or two adjacent lines of additional atoms and a step on the surface. For the calculations, both density-matrix renormalization group and Monte Carlo techniques are used. By changing the local couplings at the defects and the film thickness, non-universal features as well as interesting crossover phenomena in the magnetic exponents are observed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0007499","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":"2026-05-18T01:07:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a2ABVj0LZMS5LyJJh8SVtEUlRJkOuEtB/cH3TJEXHJB39UGbwvz7R4ynMDGF/5tJyzBBV5SMGWMw7b2bT3OmAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T14:08:12.255823Z"},"content_sha256":"b189eaca3d44fd0712f78ea268d5a0f41e30a3dc4d35a915abab9f3cf12d2667","schema_version":"1.0","event_id":"sha256:b189eaca3d44fd0712f78ea268d5a0f41e30a3dc4d35a915abab9f3cf12d2667"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AHBQOYYJCZRBFFCCKN5RRLGL4P/bundle.json","state_url":"https://pith.science/pith/AHBQOYYJCZRBFFCCKN5RRLGL4P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AHBQOYYJCZRBFFCCKN5RRLGL4P/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":"2026-05-24T14:08:12Z","links":{"resolver":"https://pith.science/pith/AHBQOYYJCZRBFFCCKN5RRLGL4P","bundle":"https://pith.science/pith/AHBQOYYJCZRBFFCCKN5RRLGL4P/bundle.json","state":"https://pith.science/pith/AHBQOYYJCZRBFFCCKN5RRLGL4P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AHBQOYYJCZRBFFCCKN5RRLGL4P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:AHBQOYYJCZRBFFCCKN5RRLGL4P","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":"99868643d14e0397597fd79ebbb8c74a1b14d8ce3631ec118c5683cf7d1aa0a7","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat","submitted_at":"2000-07-31T08:02:56Z","title_canon_sha256":"cab3bd3bea41a3f02330149c4d8aa750df469d0a768ae59afe1b87c806d3957a"},"schema_version":"1.0","source":{"id":"cond-mat/0007499","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0007499","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0007499v1","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0007499","created_at":"2026-05-18T01:07:12Z"},{"alias_kind":"pith_short_12","alias_value":"AHBQOYYJCZRB","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"AHBQOYYJCZRBFFCC","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"AHBQOYYJ","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:b189eaca3d44fd0712f78ea268d5a0f41e30a3dc4d35a915abab9f3cf12d2667","target":"graph","created_at":"2026-05-18T01:07:12Z","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":"The influence of surface defects on the critical properties of magnetic films is studied for Ising models with nearest-neighbour ferromagnetic couplings. The defects include one or two adjacent lines of additional atoms and a step on the surface. For the calculations, both density-matrix renormalization group and Monte Carlo techniques are used. By changing the local couplings at the defects and the film thickness, non-universal features as well as interesting crossover phenomena in the magnetic exponents are observed.","authors_text":"I. Peschel, M.-C. Chung, M. Kaulke, M. Pleimling, W. Selke","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat","submitted_at":"2000-07-31T08:02:56Z","title":"Ising films with surface defects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0007499","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":"sha256:75b2d21cc1fe451b62076f0631eca9e2f501df2291932f75341c73436fedd2d1","target":"record","created_at":"2026-05-18T01:07:12Z","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":"99868643d14e0397597fd79ebbb8c74a1b14d8ce3631ec118c5683cf7d1aa0a7","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat","submitted_at":"2000-07-31T08:02:56Z","title_canon_sha256":"cab3bd3bea41a3f02330149c4d8aa750df469d0a768ae59afe1b87c806d3957a"},"schema_version":"1.0","source":{"id":"cond-mat/0007499","kind":"arxiv","version":1}},"canonical_sha256":"01c30763091662129442537b18accbe3ee80bbad3a32d5cf25d7bf25261ff377","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01c30763091662129442537b18accbe3ee80bbad3a32d5cf25d7bf25261ff377","first_computed_at":"2026-05-18T01:07:12.782172Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:12.782172Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0qX/0b+SBT6t5tiSeQZeDzdnwKdcB6nszO87gBpdbJnLnLNgL9mWiJ9GpOEboE2/h8Kibscs9SYQTEEzeMMRCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:12.782778Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0007499","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75b2d21cc1fe451b62076f0631eca9e2f501df2291932f75341c73436fedd2d1","sha256:b189eaca3d44fd0712f78ea268d5a0f41e30a3dc4d35a915abab9f3cf12d2667"],"state_sha256":"7e5ad7106fb21c162a5206a32efabbd31c608d4e86c0ba1cc7b6b7d4b151ea4b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CAh+kAbryVCXCylA1zLNaOuNTSifNzKGi7U4jq0dU7jtteOnx6OFGErgUcYG+CJZC/qMXWd2ivhxFWJ/cIC3Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T14:08:12.259587Z","bundle_sha256":"11df4548fa9db42ad46afdaddb380a9221a50859d7169fabe313989acd38b0d6"}}