{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JGJAWXOZ2GUZA22NA53RM37Q4K","short_pith_number":"pith:JGJAWXOZ","canonical_record":{"source":{"id":"1307.2911","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2013-07-10T20:09:38Z","cross_cats_sorted":["q-bio.PE"],"title_canon_sha256":"fe332036ffa4b568594b6a98ecd427642d22441aa5dd1bf75b3c8018418dd133","abstract_canon_sha256":"4365fff9609a3f4e978b3de4f147d91b68b25e9ab44e418efaa1bf9f74602345"},"schema_version":"1.0"},"canonical_sha256":"49920b5dd9d1a9906b4d0777166ff0e2bfb4700056ff0ea98dc9d464a3ad01af","source":{"kind":"arxiv","id":"1307.2911","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.2911","created_at":"2026-05-18T03:17:56Z"},{"alias_kind":"arxiv_version","alias_value":"1307.2911v2","created_at":"2026-05-18T03:17:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.2911","created_at":"2026-05-18T03:17:56Z"},{"alias_kind":"pith_short_12","alias_value":"JGJAWXOZ2GUZ","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JGJAWXOZ2GUZA22N","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JGJAWXOZ","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JGJAWXOZ2GUZA22NA53RM37Q4K","target":"record","payload":{"canonical_record":{"source":{"id":"1307.2911","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2013-07-10T20:09:38Z","cross_cats_sorted":["q-bio.PE"],"title_canon_sha256":"fe332036ffa4b568594b6a98ecd427642d22441aa5dd1bf75b3c8018418dd133","abstract_canon_sha256":"4365fff9609a3f4e978b3de4f147d91b68b25e9ab44e418efaa1bf9f74602345"},"schema_version":"1.0"},"canonical_sha256":"49920b5dd9d1a9906b4d0777166ff0e2bfb4700056ff0ea98dc9d464a3ad01af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:17:56.201187Z","signature_b64":"M790ZPpDgiGhgL7TXRlnH4M+HEHiSB7DGrSRei8+rcxcjQAiIPEfGjiizicuXwoZLbPeXEw0OEEg/hXKnXWwBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49920b5dd9d1a9906b4d0777166ff0e2bfb4700056ff0ea98dc9d464a3ad01af","last_reissued_at":"2026-05-18T03:17:56.200592Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:17:56.200592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.2911","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":"2026-05-18T03:17:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"40a+/XLsLTjUyivqJ0iKoTeGdSK+ng+ST4ztiRn7i1hy8UI78T0C7Pt3sDfKc+/1r1K7W/++LEQq4B973HhXCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:06:59.230993Z"},"content_sha256":"02b2d92fb889f4a59fe197eb2917934119af6eb517fe526e5d7229245a0ea80f","schema_version":"1.0","event_id":"sha256:02b2d92fb889f4a59fe197eb2917934119af6eb517fe526e5d7229245a0ea80f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JGJAWXOZ2GUZA22NA53RM37Q4K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reproduction and ferromagnetism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.PE"],"primary_cat":"physics.bio-ph","authors_text":"Ignacio Gallo","submitted_at":"2013-07-10T20:09:38Z","abstract_excerpt":"I present a stochastic population model that combines cooperative interactions of the type often used in physics with the process of reproduction and death familiar to biology, and I refer to reasons why such interlocking may be of interest to both fields."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.2911","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":"2026-05-18T03:17:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OprfDVniuOywULje27JzBU0jnz1LvjTSN4EN0fn9igBcn2k48cEAu/8xJcMpx5jYJdhWcO+OfXLunQlN1E83Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:06:59.231337Z"},"content_sha256":"7cc11cdb17daf17d5756c2135dfb3fb221f7c649cc678886fc2c078aa63ce6aa","schema_version":"1.0","event_id":"sha256:7cc11cdb17daf17d5756c2135dfb3fb221f7c649cc678886fc2c078aa63ce6aa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JGJAWXOZ2GUZA22NA53RM37Q4K/bundle.json","state_url":"https://pith.science/pith/JGJAWXOZ2GUZA22NA53RM37Q4K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JGJAWXOZ2GUZA22NA53RM37Q4K/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":"2026-06-02T10:06:59Z","links":{"resolver":"https://pith.science/pith/JGJAWXOZ2GUZA22NA53RM37Q4K","bundle":"https://pith.science/pith/JGJAWXOZ2GUZA22NA53RM37Q4K/bundle.json","state":"https://pith.science/pith/JGJAWXOZ2GUZA22NA53RM37Q4K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JGJAWXOZ2GUZA22NA53RM37Q4K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JGJAWXOZ2GUZA22NA53RM37Q4K","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":"4365fff9609a3f4e978b3de4f147d91b68b25e9ab44e418efaa1bf9f74602345","cross_cats_sorted":["q-bio.PE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2013-07-10T20:09:38Z","title_canon_sha256":"fe332036ffa4b568594b6a98ecd427642d22441aa5dd1bf75b3c8018418dd133"},"schema_version":"1.0","source":{"id":"1307.2911","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.2911","created_at":"2026-05-18T03:17:56Z"},{"alias_kind":"arxiv_version","alias_value":"1307.2911v2","created_at":"2026-05-18T03:17:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.2911","created_at":"2026-05-18T03:17:56Z"},{"alias_kind":"pith_short_12","alias_value":"JGJAWXOZ2GUZ","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JGJAWXOZ2GUZA22N","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JGJAWXOZ","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:7cc11cdb17daf17d5756c2135dfb3fb221f7c649cc678886fc2c078aa63ce6aa","target":"graph","created_at":"2026-05-18T03:17:56Z","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":"I present a stochastic population model that combines cooperative interactions of the type often used in physics with the process of reproduction and death familiar to biology, and I refer to reasons why such interlocking may be of interest to both fields.","authors_text":"Ignacio Gallo","cross_cats":["q-bio.PE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2013-07-10T20:09:38Z","title":"Reproduction and ferromagnetism"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.2911","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":"sha256:02b2d92fb889f4a59fe197eb2917934119af6eb517fe526e5d7229245a0ea80f","target":"record","created_at":"2026-05-18T03:17:56Z","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":"4365fff9609a3f4e978b3de4f147d91b68b25e9ab44e418efaa1bf9f74602345","cross_cats_sorted":["q-bio.PE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2013-07-10T20:09:38Z","title_canon_sha256":"fe332036ffa4b568594b6a98ecd427642d22441aa5dd1bf75b3c8018418dd133"},"schema_version":"1.0","source":{"id":"1307.2911","kind":"arxiv","version":2}},"canonical_sha256":"49920b5dd9d1a9906b4d0777166ff0e2bfb4700056ff0ea98dc9d464a3ad01af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49920b5dd9d1a9906b4d0777166ff0e2bfb4700056ff0ea98dc9d464a3ad01af","first_computed_at":"2026-05-18T03:17:56.200592Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:17:56.200592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M790ZPpDgiGhgL7TXRlnH4M+HEHiSB7DGrSRei8+rcxcjQAiIPEfGjiizicuXwoZLbPeXEw0OEEg/hXKnXWwBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:17:56.201187Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.2911","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02b2d92fb889f4a59fe197eb2917934119af6eb517fe526e5d7229245a0ea80f","sha256:7cc11cdb17daf17d5756c2135dfb3fb221f7c649cc678886fc2c078aa63ce6aa"],"state_sha256":"fc76799e3cb9b5872b8d45dd8b2bdc0c23561a9357a43223ccc46a37c9eda391"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GJHalNlKv8dvzXTa9qx0vAPo7l3qPElVFNKsl/Ya3/lasB69c2DsvDHu7dF0N8YtOK0DZn5KbukwneuYJscEBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T10:06:59.233162Z","bundle_sha256":"19d39644819e70ad2a687a4bf6ea7d9511ff2fa26677e03bc724b3fa6e46c36e"}}