{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:S3GSHNDAVR6D36YXGT7VWBU7BX","short_pith_number":"pith:S3GSHNDA","canonical_record":{"source":{"id":"1609.05172","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-08-25T07:10:57Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"76d096c8a074df01bff896549ace1cb79bd5e7b92bcc0f3c303cd26d3a01e97f","abstract_canon_sha256":"df65d447bd19648a178e5e01ccc3c27c1c82a82f60f12d3f89f8224d97656e56"},"schema_version":"1.0"},"canonical_sha256":"96cd23b460ac7c3dfb1734ff5b069f0dc8be5f7d53af0f15360dd62120115084","source":{"kind":"arxiv","id":"1609.05172","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.05172","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"arxiv_version","alias_value":"1609.05172v1","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.05172","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"pith_short_12","alias_value":"S3GSHNDAVR6D","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"S3GSHNDAVR6D36YX","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"S3GSHNDA","created_at":"2026-05-18T12:30:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:S3GSHNDAVR6D36YXGT7VWBU7BX","target":"record","payload":{"canonical_record":{"source":{"id":"1609.05172","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-08-25T07:10:57Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"76d096c8a074df01bff896549ace1cb79bd5e7b92bcc0f3c303cd26d3a01e97f","abstract_canon_sha256":"df65d447bd19648a178e5e01ccc3c27c1c82a82f60f12d3f89f8224d97656e56"},"schema_version":"1.0"},"canonical_sha256":"96cd23b460ac7c3dfb1734ff5b069f0dc8be5f7d53af0f15360dd62120115084","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:31.258148Z","signature_b64":"YaPhw+mq8pap7hRj+qJrwM1ZWYSnddF4l38EVf8l1tHOmPhhfiAiq/50GxMrlHVJL8CUUxR1wZR4j9FaI4j3BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"96cd23b460ac7c3dfb1734ff5b069f0dc8be5f7d53af0f15360dd62120115084","last_reissued_at":"2026-05-18T01:04:31.257666Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:31.257666Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.05172","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":"2026-05-18T01:04:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zWcuaS9eA+pgF+ZPrw9u4Hp2yySnAdf4sxH2WmTN/xhQSwWF4mLgkaVVnYq3st384F7yYLJPbtGVmZHJ2QS1Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T19:15:28.328698Z"},"content_sha256":"535aad1fdc91dd06ea0fc636b766758e6bca76d001ec058f3ddf647c2e805013","schema_version":"1.0","event_id":"sha256:535aad1fdc91dd06ea0fc636b766758e6bca76d001ec058f3ddf647c2e805013"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:S3GSHNDAVR6D36YXGT7VWBU7BX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Long term stability and reproducibility of magnetic colloids are key issues for steady values of Specific Power Absorption through time","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"physics.chem-ph","authors_text":"B. Sanz, G. F. Goya, M.P. Calatayud, M.R. Ibarra, N. Cassinelli","submitted_at":"2016-08-25T07:10:57Z","abstract_excerpt":"Virtually all clinical applications of magnetic nanoparticles (MNPs) require the formulation of biocompatible, water-based magnetic colloids. For magnetic hyperthermia, the requirements also include a high colloidal stability against precipitation and agglomeration of the constituent MNPs, in order to keep the heating efficiency of the ferrofluid in the long term. The specific power absorption (SPA) of single-domain MNPs depends critically on the average particle size and size distribution width, therefore first-rate reproducibility among different batches regarding these parameters are also n"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.05172","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":"2026-05-18T01:04:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7P+4nELJGULNPJcJxd1lvZ8NRkDOE19j4sQpiV/DwRnywOgcnCaF8r9TcuUtF8hcsnMeI/+KjRNpGpARd9H3Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T19:15:28.329359Z"},"content_sha256":"077da39c9412493d31fac90e4f7c5c8e2de92ad17c3fd009c8e34e81e400fd8c","schema_version":"1.0","event_id":"sha256:077da39c9412493d31fac90e4f7c5c8e2de92ad17c3fd009c8e34e81e400fd8c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S3GSHNDAVR6D36YXGT7VWBU7BX/bundle.json","state_url":"https://pith.science/pith/S3GSHNDAVR6D36YXGT7VWBU7BX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S3GSHNDAVR6D36YXGT7VWBU7BX/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":"2026-05-21T19:15:28Z","links":{"resolver":"https://pith.science/pith/S3GSHNDAVR6D36YXGT7VWBU7BX","bundle":"https://pith.science/pith/S3GSHNDAVR6D36YXGT7VWBU7BX/bundle.json","state":"https://pith.science/pith/S3GSHNDAVR6D36YXGT7VWBU7BX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S3GSHNDAVR6D36YXGT7VWBU7BX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:S3GSHNDAVR6D36YXGT7VWBU7BX","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":"df65d447bd19648a178e5e01ccc3c27c1c82a82f60f12d3f89f8224d97656e56","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-08-25T07:10:57Z","title_canon_sha256":"76d096c8a074df01bff896549ace1cb79bd5e7b92bcc0f3c303cd26d3a01e97f"},"schema_version":"1.0","source":{"id":"1609.05172","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.05172","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"arxiv_version","alias_value":"1609.05172v1","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.05172","created_at":"2026-05-18T01:04:31Z"},{"alias_kind":"pith_short_12","alias_value":"S3GSHNDAVR6D","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"S3GSHNDAVR6D36YX","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"S3GSHNDA","created_at":"2026-05-18T12:30:41Z"}],"graph_snapshots":[{"event_id":"sha256:077da39c9412493d31fac90e4f7c5c8e2de92ad17c3fd009c8e34e81e400fd8c","target":"graph","created_at":"2026-05-18T01:04:31Z","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":"Virtually all clinical applications of magnetic nanoparticles (MNPs) require the formulation of biocompatible, water-based magnetic colloids. For magnetic hyperthermia, the requirements also include a high colloidal stability against precipitation and agglomeration of the constituent MNPs, in order to keep the heating efficiency of the ferrofluid in the long term. The specific power absorption (SPA) of single-domain MNPs depends critically on the average particle size and size distribution width, therefore first-rate reproducibility among different batches regarding these parameters are also n","authors_text":"B. Sanz, G. F. Goya, M.P. Calatayud, M.R. Ibarra, N. Cassinelli","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-08-25T07:10:57Z","title":"Long term stability and reproducibility of magnetic colloids are key issues for steady values of Specific Power Absorption through time"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.05172","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":"sha256:535aad1fdc91dd06ea0fc636b766758e6bca76d001ec058f3ddf647c2e805013","target":"record","created_at":"2026-05-18T01:04:31Z","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":"df65d447bd19648a178e5e01ccc3c27c1c82a82f60f12d3f89f8224d97656e56","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-08-25T07:10:57Z","title_canon_sha256":"76d096c8a074df01bff896549ace1cb79bd5e7b92bcc0f3c303cd26d3a01e97f"},"schema_version":"1.0","source":{"id":"1609.05172","kind":"arxiv","version":1}},"canonical_sha256":"96cd23b460ac7c3dfb1734ff5b069f0dc8be5f7d53af0f15360dd62120115084","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"96cd23b460ac7c3dfb1734ff5b069f0dc8be5f7d53af0f15360dd62120115084","first_computed_at":"2026-05-18T01:04:31.257666Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:31.257666Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YaPhw+mq8pap7hRj+qJrwM1ZWYSnddF4l38EVf8l1tHOmPhhfiAiq/50GxMrlHVJL8CUUxR1wZR4j9FaI4j3BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:31.258148Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.05172","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:535aad1fdc91dd06ea0fc636b766758e6bca76d001ec058f3ddf647c2e805013","sha256:077da39c9412493d31fac90e4f7c5c8e2de92ad17c3fd009c8e34e81e400fd8c"],"state_sha256":"73c28fdf205a6c1cc2c3a7648c33f9401806ca1624e9ed702070d7f459e0e03b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mn9t2/aqWxZBGLreqJANWkzbA5q3tSs8PszKuf2nkj+6w+6qhMoQ8+gLpOGl+1EMHiIbQaLD992j4GLpxrQwAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T19:15:28.332114Z","bundle_sha256":"c8e9f5e169fd7f3d06006a68417d4b1d35e669c4f8d24e0a6f36a14bd7bfa61b"}}