{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:6FILTUXZ5CJNRXVRCU5QFOCCZK","short_pith_number":"pith:6FILTUXZ","canonical_record":{"source":{"id":"cond-mat/0307485","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-07-19T09:51:26Z","cross_cats_sorted":[],"title_canon_sha256":"878a8cafb92a238f978385282716f95956e162fe70d471ff6f1393d953e48e80","abstract_canon_sha256":"83f3f2510efe5559f0a98f6f181f5db505944c1fd5d583f8246b6eb495046411"},"schema_version":"1.0"},"canonical_sha256":"f150b9d2f9e892d8deb1153b02b842cabd94e4e1286f10bb951a54c6d9f989b8","source":{"kind":"arxiv","id":"cond-mat/0307485","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0307485","created_at":"2026-05-18T01:40:00Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0307485v1","created_at":"2026-05-18T01:40:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0307485","created_at":"2026-05-18T01:40:00Z"},{"alias_kind":"pith_short_12","alias_value":"6FILTUXZ5CJN","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"6FILTUXZ5CJNRXVR","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"6FILTUXZ","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:6FILTUXZ5CJNRXVRCU5QFOCCZK","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0307485","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-07-19T09:51:26Z","cross_cats_sorted":[],"title_canon_sha256":"878a8cafb92a238f978385282716f95956e162fe70d471ff6f1393d953e48e80","abstract_canon_sha256":"83f3f2510efe5559f0a98f6f181f5db505944c1fd5d583f8246b6eb495046411"},"schema_version":"1.0"},"canonical_sha256":"f150b9d2f9e892d8deb1153b02b842cabd94e4e1286f10bb951a54c6d9f989b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:00.871724Z","signature_b64":"rzI4wABzDZ3IKtyQ3qYAXEhmmGCGtmWOuRME2A4BTczpRw8ypJ+tYYOgkf/INIjHXB4CjMYucLbcQzTTmyErDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f150b9d2f9e892d8deb1153b02b842cabd94e4e1286f10bb951a54c6d9f989b8","last_reissued_at":"2026-05-18T01:40:00.871289Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:00.871289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0307485","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":"2026-05-18T01:40:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hXdPc99uxa1PM/6/spUz7NjXfeJcGcPYhZF9VT5Q4sffDCp5RqqSOBuKXxdyyK+cG64NKhH+2aa5A18/SkevBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T19:24:57.748415Z"},"content_sha256":"82b7cdd3bd9bc1912dafb4619f5760abadfbefcddf47d0d9990fc7faee5659f5","schema_version":"1.0","event_id":"sha256:82b7cdd3bd9bc1912dafb4619f5760abadfbefcddf47d0d9990fc7faee5659f5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:6FILTUXZ5CJNRXVRCU5QFOCCZK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stromatolites: why do we care?","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"A. Schwettmann, M. C. Storrie-Lombardi, M. Ignaccolo, P. Grigolini, R. Failla","submitted_at":"2003-07-19T09:51:26Z","abstract_excerpt":"We apply the method of Diffusion Entropy (DE) to the study of stromatolites by means of a two-dimensional procedure that makes it possible for us to compare the DE analysis to the results of a compression method. As done with the compression method, we analyze two pairs of samples, one biotic and the other a-biotic. Each pair consists of a target, the putative stromatolite sample, and of its surrounding matrix. We use two different procedures, referring to single colors and to a color combination, respectively. We apply the DE method to both procedures and we find the same result, this being t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0307485","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":"2026-05-18T01:40:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6kPb6ygT7mn9sKRVl71MiCncc4cE6AgAJdv5BOndlIYLpki9mp8ic+vzF8FjquHR2TUeaRXwb25Mo3aEzrQVCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T19:24:57.748773Z"},"content_sha256":"071faf26c60009528eae42dad5d8517a8c9ec34a3207cfe81113d134a8b7dcff","schema_version":"1.0","event_id":"sha256:071faf26c60009528eae42dad5d8517a8c9ec34a3207cfe81113d134a8b7dcff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6FILTUXZ5CJNRXVRCU5QFOCCZK/bundle.json","state_url":"https://pith.science/pith/6FILTUXZ5CJNRXVRCU5QFOCCZK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6FILTUXZ5CJNRXVRCU5QFOCCZK/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":"2026-05-30T19:24:57Z","links":{"resolver":"https://pith.science/pith/6FILTUXZ5CJNRXVRCU5QFOCCZK","bundle":"https://pith.science/pith/6FILTUXZ5CJNRXVRCU5QFOCCZK/bundle.json","state":"https://pith.science/pith/6FILTUXZ5CJNRXVRCU5QFOCCZK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6FILTUXZ5CJNRXVRCU5QFOCCZK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:6FILTUXZ5CJNRXVRCU5QFOCCZK","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":"83f3f2510efe5559f0a98f6f181f5db505944c1fd5d583f8246b6eb495046411","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-07-19T09:51:26Z","title_canon_sha256":"878a8cafb92a238f978385282716f95956e162fe70d471ff6f1393d953e48e80"},"schema_version":"1.0","source":{"id":"cond-mat/0307485","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0307485","created_at":"2026-05-18T01:40:00Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0307485v1","created_at":"2026-05-18T01:40:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0307485","created_at":"2026-05-18T01:40:00Z"},{"alias_kind":"pith_short_12","alias_value":"6FILTUXZ5CJN","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"6FILTUXZ5CJNRXVR","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"6FILTUXZ","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:071faf26c60009528eae42dad5d8517a8c9ec34a3207cfe81113d134a8b7dcff","target":"graph","created_at":"2026-05-18T01:40:00Z","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":"We apply the method of Diffusion Entropy (DE) to the study of stromatolites by means of a two-dimensional procedure that makes it possible for us to compare the DE analysis to the results of a compression method. As done with the compression method, we analyze two pairs of samples, one biotic and the other a-biotic. Each pair consists of a target, the putative stromatolite sample, and of its surrounding matrix. We use two different procedures, referring to single colors and to a color combination, respectively. We apply the DE method to both procedures and we find the same result, this being t","authors_text":"A. Schwettmann, M. C. Storrie-Lombardi, M. Ignaccolo, P. Grigolini, R. Failla","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-07-19T09:51:26Z","title":"Stromatolites: why do we care?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0307485","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":"sha256:82b7cdd3bd9bc1912dafb4619f5760abadfbefcddf47d0d9990fc7faee5659f5","target":"record","created_at":"2026-05-18T01:40:00Z","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":"83f3f2510efe5559f0a98f6f181f5db505944c1fd5d583f8246b6eb495046411","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-07-19T09:51:26Z","title_canon_sha256":"878a8cafb92a238f978385282716f95956e162fe70d471ff6f1393d953e48e80"},"schema_version":"1.0","source":{"id":"cond-mat/0307485","kind":"arxiv","version":1}},"canonical_sha256":"f150b9d2f9e892d8deb1153b02b842cabd94e4e1286f10bb951a54c6d9f989b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f150b9d2f9e892d8deb1153b02b842cabd94e4e1286f10bb951a54c6d9f989b8","first_computed_at":"2026-05-18T01:40:00.871289Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:00.871289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rzI4wABzDZ3IKtyQ3qYAXEhmmGCGtmWOuRME2A4BTczpRw8ypJ+tYYOgkf/INIjHXB4CjMYucLbcQzTTmyErDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:00.871724Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0307485","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82b7cdd3bd9bc1912dafb4619f5760abadfbefcddf47d0d9990fc7faee5659f5","sha256:071faf26c60009528eae42dad5d8517a8c9ec34a3207cfe81113d134a8b7dcff"],"state_sha256":"5defba6dfad3620c16ee8d1bca1eb987c1c6e7d615fdedb55846114b4767b614"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4gRnBiDRQSzH48qYHsJ50ZURt7a0RolbHa3pDb2kD7Rg8/iWFbOB/Ab9Qm0ubWbNLSJ7FScOl2V4T33zqUWcDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T19:24:57.750773Z","bundle_sha256":"f7e1071f8a9b454484d5f132b79eb837b2c3ef683adad682df5e5485c5b32503"}}