{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:MTCYZ3OPELLM6ASRPCOWWRCVBN","short_pith_number":"pith:MTCYZ3OP","canonical_record":{"source":{"id":"1412.7189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2014-12-22T22:25:00Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"d9f49bad94374418c71dc4619d9bbdfd21aa85a8801f697f2cd93e1e21c710f9","abstract_canon_sha256":"d8d312104c19beaba9e2515a54b5151a7c1682ca6914b70376a5a0626e6a0326"},"schema_version":"1.0"},"canonical_sha256":"64c58cedcf22d6cf0251789d6b44550b6122350a995d3aff1cb0f3738a84c3d9","source":{"kind":"arxiv","id":"1412.7189","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7189","created_at":"2026-05-18T02:30:40Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7189v1","created_at":"2026-05-18T02:30:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7189","created_at":"2026-05-18T02:30:40Z"},{"alias_kind":"pith_short_12","alias_value":"MTCYZ3OPELLM","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MTCYZ3OPELLM6ASR","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MTCYZ3OP","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:MTCYZ3OPELLM6ASRPCOWWRCVBN","target":"record","payload":{"canonical_record":{"source":{"id":"1412.7189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2014-12-22T22:25:00Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"d9f49bad94374418c71dc4619d9bbdfd21aa85a8801f697f2cd93e1e21c710f9","abstract_canon_sha256":"d8d312104c19beaba9e2515a54b5151a7c1682ca6914b70376a5a0626e6a0326"},"schema_version":"1.0"},"canonical_sha256":"64c58cedcf22d6cf0251789d6b44550b6122350a995d3aff1cb0f3738a84c3d9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:30:40.823837Z","signature_b64":"23Kjv3V2joC7lJ7sXhn2ZBKNXQJMgUyWnrvv4XrFquEXmLkZgJKlGd985DvEclEOatkfQeVoXme08WrjrXIiBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64c58cedcf22d6cf0251789d6b44550b6122350a995d3aff1cb0f3738a84c3d9","last_reissued_at":"2026-05-18T02:30:40.823408Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:30:40.823408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.7189","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":"2026-05-18T02:30:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xIdQUQ9Y/MiD2lX45vm6EOrOeXjRRmhx4XmD3xan5y23KSOjOgps9RkxRuS3NVgkd0ZqZHK3XCKZdjGNycrhBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:42:51.046002Z"},"content_sha256":"41f5eb5a3731825b9eb2097ff7f4d23f694a805e81c7b772289f62386aa63720","schema_version":"1.0","event_id":"sha256:41f5eb5a3731825b9eb2097ff7f4d23f694a805e81c7b772289f62386aa63720"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:MTCYZ3OPELLM6ASRPCOWWRCVBN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thickness dependent Curie temperature and power-law behavior of layering transitions in ferromagnetic classical and quantum thin films described by Ising, XY and Heisenberg models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.stat-mech","authors_text":"Umit Akinci, Yusuf Yuksel","submitted_at":"2014-12-22T22:25:00Z","abstract_excerpt":"Ferromagnetic-paramagnetic phase transitions in classical and quantum thin films have been studied up to 50 mono-layers using effective field theory with two-site cluster approximation. Variation of the Curie temperature as a function of film thickness has been examined. The relative shift of the Curie temperature from the corresponding bulk value has been investigated in terms of the shift exponent $\\lambda$. We have found that shift exponent $\\lambda$ clearly depends on the strength of the ferromagnetic exchange coupling of the surface. Moreover, we have not observed any significant differen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7189","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":"2026-05-18T02:30:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WKyo6t+kfA9AE5CXuSp8BKgZqjNdiz+NG2xjq9s/r1KN6aLbvhIk1q6TAPG3tKfxxnWYZsQjFLYWBnWIb82RCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:42:51.046360Z"},"content_sha256":"aa0b0253d40a7f57de45a414127b6c0e4b53d2e32aa64c918d238613d68d9076","schema_version":"1.0","event_id":"sha256:aa0b0253d40a7f57de45a414127b6c0e4b53d2e32aa64c918d238613d68d9076"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MTCYZ3OPELLM6ASRPCOWWRCVBN/bundle.json","state_url":"https://pith.science/pith/MTCYZ3OPELLM6ASRPCOWWRCVBN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MTCYZ3OPELLM6ASRPCOWWRCVBN/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":"2026-06-03T19:42:51Z","links":{"resolver":"https://pith.science/pith/MTCYZ3OPELLM6ASRPCOWWRCVBN","bundle":"https://pith.science/pith/MTCYZ3OPELLM6ASRPCOWWRCVBN/bundle.json","state":"https://pith.science/pith/MTCYZ3OPELLM6ASRPCOWWRCVBN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MTCYZ3OPELLM6ASRPCOWWRCVBN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:MTCYZ3OPELLM6ASRPCOWWRCVBN","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":"d8d312104c19beaba9e2515a54b5151a7c1682ca6914b70376a5a0626e6a0326","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2014-12-22T22:25:00Z","title_canon_sha256":"d9f49bad94374418c71dc4619d9bbdfd21aa85a8801f697f2cd93e1e21c710f9"},"schema_version":"1.0","source":{"id":"1412.7189","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.7189","created_at":"2026-05-18T02:30:40Z"},{"alias_kind":"arxiv_version","alias_value":"1412.7189v1","created_at":"2026-05-18T02:30:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7189","created_at":"2026-05-18T02:30:40Z"},{"alias_kind":"pith_short_12","alias_value":"MTCYZ3OPELLM","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MTCYZ3OPELLM6ASR","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MTCYZ3OP","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:aa0b0253d40a7f57de45a414127b6c0e4b53d2e32aa64c918d238613d68d9076","target":"graph","created_at":"2026-05-18T02:30:40Z","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":"Ferromagnetic-paramagnetic phase transitions in classical and quantum thin films have been studied up to 50 mono-layers using effective field theory with two-site cluster approximation. Variation of the Curie temperature as a function of film thickness has been examined. The relative shift of the Curie temperature from the corresponding bulk value has been investigated in terms of the shift exponent $\\lambda$. We have found that shift exponent $\\lambda$ clearly depends on the strength of the ferromagnetic exchange coupling of the surface. Moreover, we have not observed any significant differen","authors_text":"Umit Akinci, Yusuf Yuksel","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2014-12-22T22:25:00Z","title":"Thickness dependent Curie temperature and power-law behavior of layering transitions in ferromagnetic classical and quantum thin films described by Ising, XY and Heisenberg models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7189","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":"sha256:41f5eb5a3731825b9eb2097ff7f4d23f694a805e81c7b772289f62386aa63720","target":"record","created_at":"2026-05-18T02:30:40Z","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":"d8d312104c19beaba9e2515a54b5151a7c1682ca6914b70376a5a0626e6a0326","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2014-12-22T22:25:00Z","title_canon_sha256":"d9f49bad94374418c71dc4619d9bbdfd21aa85a8801f697f2cd93e1e21c710f9"},"schema_version":"1.0","source":{"id":"1412.7189","kind":"arxiv","version":1}},"canonical_sha256":"64c58cedcf22d6cf0251789d6b44550b6122350a995d3aff1cb0f3738a84c3d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64c58cedcf22d6cf0251789d6b44550b6122350a995d3aff1cb0f3738a84c3d9","first_computed_at":"2026-05-18T02:30:40.823408Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:30:40.823408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"23Kjv3V2joC7lJ7sXhn2ZBKNXQJMgUyWnrvv4XrFquEXmLkZgJKlGd985DvEclEOatkfQeVoXme08WrjrXIiBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:30:40.823837Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.7189","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:41f5eb5a3731825b9eb2097ff7f4d23f694a805e81c7b772289f62386aa63720","sha256:aa0b0253d40a7f57de45a414127b6c0e4b53d2e32aa64c918d238613d68d9076"],"state_sha256":"bf73c71e46b34b7da8517904665367d9c01978a49f5eb09e133fe48a84729521"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"290r1l2nuTg6IOmaxHXN8AU0kt7dx4XHD3WhPZAQn8JL6/hoN+mO9AIDoUmGGc9/fw48NnSU1PaOXRZV/TExCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T19:42:51.048302Z","bundle_sha256":"b91144dbc46368a067e99c68b578478fafd3d4982a5ee6620c8ba137886f090a"}}