{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:662TEKW2KOZRLM5F4BBFQNRJAX","short_pith_number":"pith:662TEKW2","canonical_record":{"source":{"id":"1404.6475","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-04-25T16:26:18Z","cross_cats_sorted":[],"title_canon_sha256":"81dd43322d6850092497c8dbf7a8af72da1db41eab2fa26d82bbf0ce4baaab82","abstract_canon_sha256":"2a4dad7fac5869bcaf461fcb77c1316a08d6a42e7bbdd2057c63d41c0d22b206"},"schema_version":"1.0"},"canonical_sha256":"f7b5322ada53b315b3a5e04258362905d1a56913aca42bb4eb067e8066e47f9f","source":{"kind":"arxiv","id":"1404.6475","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6475","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6475v1","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6475","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"pith_short_12","alias_value":"662TEKW2KOZR","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"662TEKW2KOZRLM5F","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"662TEKW2","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:662TEKW2KOZRLM5F4BBFQNRJAX","target":"record","payload":{"canonical_record":{"source":{"id":"1404.6475","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-04-25T16:26:18Z","cross_cats_sorted":[],"title_canon_sha256":"81dd43322d6850092497c8dbf7a8af72da1db41eab2fa26d82bbf0ce4baaab82","abstract_canon_sha256":"2a4dad7fac5869bcaf461fcb77c1316a08d6a42e7bbdd2057c63d41c0d22b206"},"schema_version":"1.0"},"canonical_sha256":"f7b5322ada53b315b3a5e04258362905d1a56913aca42bb4eb067e8066e47f9f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:45:04.164052Z","signature_b64":"irHNM3dFqVRG6R4bj5aP2oh6YrvuOgaL+sll7284LmRNWnkX7BcyeyRPYl5dB19y1FkpzVnRRHapehLfOMqfCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7b5322ada53b315b3a5e04258362905d1a56913aca42bb4eb067e8066e47f9f","last_reissued_at":"2026-05-18T02:45:04.163641Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:45:04.163641Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.6475","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":"2026-05-18T02:45:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8c97FHlReE1URbsO/R+rsK9vgfaj/nTkx4fkcf8I4hzEzHp1ngqb2/2CuEM3b5HZ0WthNTs81D9AJLZBD0k7DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:07:25.928824Z"},"content_sha256":"070792ab23c76f2fec9147002d757ae5eabff9d495ecc7642603d00722bffe3a","schema_version":"1.0","event_id":"sha256:070792ab23c76f2fec9147002d757ae5eabff9d495ecc7642603d00722bffe3a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:662TEKW2KOZRLM5F4BBFQNRJAX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermal properties of composite materials with a complex fractal structure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"F. Cervantes-\\'Alvarez, J. J. Reyes-Salgado, J. L. Carrillo, V. Dossetti","submitted_at":"2014-04-25T16:26:18Z","abstract_excerpt":"In this work, we report the thermal characterization of platelike composite samples made of polyester resin and magnetite inclusions. By means of photoacoustic spectroscopy and thermal relaxation, the thermal diffusivity, conductivity and volumetric heat capacity of the samples were experimentally measured. The volume fraction of inclusions was systematically varied in order to study the changes in the effective thermal conductivity of the composites. In some samples, a static magnetic field was applied during the polymerization process resulting in anisotropic inclusion distributions. Our res"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6475","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":"2026-05-18T02:45:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hdvnGj0DfglaGtGKes6e+BOlJLetloYiXptgNx1WpWJO9ynnnJmzjCg3BJo20u0mcYl1oGdjMNjQIJSmOSNJAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:07:25.929171Z"},"content_sha256":"757b5ba8350eba8de16ac846a5c731cdf9ca3e11acc41ad0d3fc5adbe98aae5b","schema_version":"1.0","event_id":"sha256:757b5ba8350eba8de16ac846a5c731cdf9ca3e11acc41ad0d3fc5adbe98aae5b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/662TEKW2KOZRLM5F4BBFQNRJAX/bundle.json","state_url":"https://pith.science/pith/662TEKW2KOZRLM5F4BBFQNRJAX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/662TEKW2KOZRLM5F4BBFQNRJAX/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":"2026-06-03T22:07:25Z","links":{"resolver":"https://pith.science/pith/662TEKW2KOZRLM5F4BBFQNRJAX","bundle":"https://pith.science/pith/662TEKW2KOZRLM5F4BBFQNRJAX/bundle.json","state":"https://pith.science/pith/662TEKW2KOZRLM5F4BBFQNRJAX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/662TEKW2KOZRLM5F4BBFQNRJAX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:662TEKW2KOZRLM5F4BBFQNRJAX","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":"2a4dad7fac5869bcaf461fcb77c1316a08d6a42e7bbdd2057c63d41c0d22b206","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-04-25T16:26:18Z","title_canon_sha256":"81dd43322d6850092497c8dbf7a8af72da1db41eab2fa26d82bbf0ce4baaab82"},"schema_version":"1.0","source":{"id":"1404.6475","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6475","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6475v1","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6475","created_at":"2026-05-18T02:45:04Z"},{"alias_kind":"pith_short_12","alias_value":"662TEKW2KOZR","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"662TEKW2KOZRLM5F","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"662TEKW2","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:757b5ba8350eba8de16ac846a5c731cdf9ca3e11acc41ad0d3fc5adbe98aae5b","target":"graph","created_at":"2026-05-18T02:45:04Z","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":"In this work, we report the thermal characterization of platelike composite samples made of polyester resin and magnetite inclusions. By means of photoacoustic spectroscopy and thermal relaxation, the thermal diffusivity, conductivity and volumetric heat capacity of the samples were experimentally measured. The volume fraction of inclusions was systematically varied in order to study the changes in the effective thermal conductivity of the composites. In some samples, a static magnetic field was applied during the polymerization process resulting in anisotropic inclusion distributions. Our res","authors_text":"F. Cervantes-\\'Alvarez, J. J. Reyes-Salgado, J. L. Carrillo, V. Dossetti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-04-25T16:26:18Z","title":"Thermal properties of composite materials with a complex fractal structure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6475","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":"sha256:070792ab23c76f2fec9147002d757ae5eabff9d495ecc7642603d00722bffe3a","target":"record","created_at":"2026-05-18T02:45:04Z","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":"2a4dad7fac5869bcaf461fcb77c1316a08d6a42e7bbdd2057c63d41c0d22b206","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-04-25T16:26:18Z","title_canon_sha256":"81dd43322d6850092497c8dbf7a8af72da1db41eab2fa26d82bbf0ce4baaab82"},"schema_version":"1.0","source":{"id":"1404.6475","kind":"arxiv","version":1}},"canonical_sha256":"f7b5322ada53b315b3a5e04258362905d1a56913aca42bb4eb067e8066e47f9f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f7b5322ada53b315b3a5e04258362905d1a56913aca42bb4eb067e8066e47f9f","first_computed_at":"2026-05-18T02:45:04.163641Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:45:04.163641Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"irHNM3dFqVRG6R4bj5aP2oh6YrvuOgaL+sll7284LmRNWnkX7BcyeyRPYl5dB19y1FkpzVnRRHapehLfOMqfCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:45:04.164052Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.6475","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:070792ab23c76f2fec9147002d757ae5eabff9d495ecc7642603d00722bffe3a","sha256:757b5ba8350eba8de16ac846a5c731cdf9ca3e11acc41ad0d3fc5adbe98aae5b"],"state_sha256":"b4b0d577556c5da06bf88f89bc3b229066410bf511d9e62e6e7732533b9f1587"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fRJgyM6a9dsmuS0sUEHgiNhfA1t/ltSK5fQNDoP2XGni+5T3eNBZ8QJnj93pC+sFiSnD845EvztfAQsuhtjCDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T22:07:25.931086Z","bundle_sha256":"84fe3cbb1293dd550600d000389ae35266c5a49ab6a7a519db35ab9ac8c8ab8c"}}