{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:HBKZ5DH6FKWTUZSO5I3XPHWCY6","short_pith_number":"pith:HBKZ5DH6","canonical_record":{"source":{"id":"1604.08487","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-28T16:07:40Z","cross_cats_sorted":[],"title_canon_sha256":"9f1fdcf295d477567d53703abda18cd3bfc615350f7f5f75c329b17c5ff6a005","abstract_canon_sha256":"2c718b676222bc5a8629c009ed65236e31ec328781235cf1801abb7e84c997e0"},"schema_version":"1.0"},"canonical_sha256":"38559e8cfe2aad3a664eea37779ec2c799073ffd2debf63aa2ec50e9c8649821","source":{"kind":"arxiv","id":"1604.08487","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.08487","created_at":"2026-05-18T01:03:49Z"},{"alias_kind":"arxiv_version","alias_value":"1604.08487v2","created_at":"2026-05-18T01:03:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.08487","created_at":"2026-05-18T01:03:49Z"},{"alias_kind":"pith_short_12","alias_value":"HBKZ5DH6FKWT","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"HBKZ5DH6FKWTUZSO","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"HBKZ5DH6","created_at":"2026-05-18T12:30:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:HBKZ5DH6FKWTUZSO5I3XPHWCY6","target":"record","payload":{"canonical_record":{"source":{"id":"1604.08487","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-28T16:07:40Z","cross_cats_sorted":[],"title_canon_sha256":"9f1fdcf295d477567d53703abda18cd3bfc615350f7f5f75c329b17c5ff6a005","abstract_canon_sha256":"2c718b676222bc5a8629c009ed65236e31ec328781235cf1801abb7e84c997e0"},"schema_version":"1.0"},"canonical_sha256":"38559e8cfe2aad3a664eea37779ec2c799073ffd2debf63aa2ec50e9c8649821","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:49.974619Z","signature_b64":"mfz7WPJD7tMNMmw6nuFxIimToD+FcWcCUi3oeKirnh8ngEnRsGwZKGb5isffrHfuFaPy+hfADoIMsC3YzuSIAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38559e8cfe2aad3a664eea37779ec2c799073ffd2debf63aa2ec50e9c8649821","last_reissued_at":"2026-05-18T01:03:49.973977Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:49.973977Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.08487","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":"2026-05-18T01:03:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vZR2/PVmZTwG0D/fcYFUbBmeeTCvoGpkv2F4hJgPZi926ZzMr2lfK9Gcxjfh3O/uU2BsuLVkq3xXiAhCv3aSDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T10:17:34.800977Z"},"content_sha256":"9736b3b163fbd9d759742dffe88c0a0a586b4a16baec5e4b58c065f6f86e6931","schema_version":"1.0","event_id":"sha256:9736b3b163fbd9d759742dffe88c0a0a586b4a16baec5e4b58c065f6f86e6931"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:HBKZ5DH6FKWTUZSO5I3XPHWCY6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mastering hysteresis in magnetocaloric materials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Dimitri Benke, Heiko Wende, Iliya Radulov, Konstantin P. Skokov, Markus Gruner, Maximilian Fries, Mehmet Acet, Michael Farle, Oliver Gutfleisch, Peter Entel, Tino Gottschall","submitted_at":"2016-04-28T16:07:40Z","abstract_excerpt":"Hysteresis is more than just an interesting oddity, which occurs in materials with a first-order transition. It is a real obstacle on the path from existing lab-scale prototypes of magnetic refrigerators towards commercialization of this potentially disruptive cooling technology. Indeed, the reversibility of the magnetocaloric effect, being essential for magnetic heat pumps, strongly depends on the width of the thermal hysteresis and therefore it is necessary to understand the mechanisms causing hysteresis and to find solutions how to minimize losses associated with thermal hysteresis in order"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.08487","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":""},"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":"2026-05-18T01:03:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XNtGgtX5BtMB3LuuciuqxTqeeihcA1qrfOZzN1NtJ5Xh4wUWXA5LokVoykbj67a+E1lcU1G5QP4H7vOuyt9rAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T10:17:34.801335Z"},"content_sha256":"0f6c741fd394d89e8b3b44a9c9d5ae451653b0ed1fae05b8fbb8e314c7f3b2d7","schema_version":"1.0","event_id":"sha256:0f6c741fd394d89e8b3b44a9c9d5ae451653b0ed1fae05b8fbb8e314c7f3b2d7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HBKZ5DH6FKWTUZSO5I3XPHWCY6/bundle.json","state_url":"https://pith.science/pith/HBKZ5DH6FKWTUZSO5I3XPHWCY6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HBKZ5DH6FKWTUZSO5I3XPHWCY6/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":"2026-06-03T10:17:34Z","links":{"resolver":"https://pith.science/pith/HBKZ5DH6FKWTUZSO5I3XPHWCY6","bundle":"https://pith.science/pith/HBKZ5DH6FKWTUZSO5I3XPHWCY6/bundle.json","state":"https://pith.science/pith/HBKZ5DH6FKWTUZSO5I3XPHWCY6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HBKZ5DH6FKWTUZSO5I3XPHWCY6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:HBKZ5DH6FKWTUZSO5I3XPHWCY6","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":"2c718b676222bc5a8629c009ed65236e31ec328781235cf1801abb7e84c997e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-28T16:07:40Z","title_canon_sha256":"9f1fdcf295d477567d53703abda18cd3bfc615350f7f5f75c329b17c5ff6a005"},"schema_version":"1.0","source":{"id":"1604.08487","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.08487","created_at":"2026-05-18T01:03:49Z"},{"alias_kind":"arxiv_version","alias_value":"1604.08487v2","created_at":"2026-05-18T01:03:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.08487","created_at":"2026-05-18T01:03:49Z"},{"alias_kind":"pith_short_12","alias_value":"HBKZ5DH6FKWT","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"HBKZ5DH6FKWTUZSO","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"HBKZ5DH6","created_at":"2026-05-18T12:30:19Z"}],"graph_snapshots":[{"event_id":"sha256:0f6c741fd394d89e8b3b44a9c9d5ae451653b0ed1fae05b8fbb8e314c7f3b2d7","target":"graph","created_at":"2026-05-18T01:03:49Z","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":"Hysteresis is more than just an interesting oddity, which occurs in materials with a first-order transition. It is a real obstacle on the path from existing lab-scale prototypes of magnetic refrigerators towards commercialization of this potentially disruptive cooling technology. Indeed, the reversibility of the magnetocaloric effect, being essential for magnetic heat pumps, strongly depends on the width of the thermal hysteresis and therefore it is necessary to understand the mechanisms causing hysteresis and to find solutions how to minimize losses associated with thermal hysteresis in order","authors_text":"Dimitri Benke, Heiko Wende, Iliya Radulov, Konstantin P. Skokov, Markus Gruner, Maximilian Fries, Mehmet Acet, Michael Farle, Oliver Gutfleisch, Peter Entel, Tino Gottschall","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-28T16:07:40Z","title":"Mastering hysteresis in magnetocaloric materials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.08487","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":"sha256:9736b3b163fbd9d759742dffe88c0a0a586b4a16baec5e4b58c065f6f86e6931","target":"record","created_at":"2026-05-18T01:03:49Z","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":"2c718b676222bc5a8629c009ed65236e31ec328781235cf1801abb7e84c997e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-28T16:07:40Z","title_canon_sha256":"9f1fdcf295d477567d53703abda18cd3bfc615350f7f5f75c329b17c5ff6a005"},"schema_version":"1.0","source":{"id":"1604.08487","kind":"arxiv","version":2}},"canonical_sha256":"38559e8cfe2aad3a664eea37779ec2c799073ffd2debf63aa2ec50e9c8649821","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38559e8cfe2aad3a664eea37779ec2c799073ffd2debf63aa2ec50e9c8649821","first_computed_at":"2026-05-18T01:03:49.973977Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:49.973977Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mfz7WPJD7tMNMmw6nuFxIimToD+FcWcCUi3oeKirnh8ngEnRsGwZKGb5isffrHfuFaPy+hfADoIMsC3YzuSIAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:49.974619Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.08487","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9736b3b163fbd9d759742dffe88c0a0a586b4a16baec5e4b58c065f6f86e6931","sha256:0f6c741fd394d89e8b3b44a9c9d5ae451653b0ed1fae05b8fbb8e314c7f3b2d7"],"state_sha256":"ac85006d472389d808ecab57631820ddb7cb3cdbaa4af5d0a4a614eaa6f9e44c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"50NA4N0GTrki15UQm9gzClYKNwJSt5t18B/ZK7H3W0k0+Awgb4aJ0lM2SplGdC1hNgEnLmyUFhdP4i0mZgGjBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T10:17:34.803303Z","bundle_sha256":"d0bc4f5845e26e852c151622c0b49dd2aa3049de82cb0d4e5fa65ae2d6606167"}}