{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BR3OIE32B5ULPGX27RVFUYY327","short_pith_number":"pith:BR3OIE32","canonical_record":{"source":{"id":"2511.06426","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2025-11-09T15:46:26Z","cross_cats_sorted":[],"title_canon_sha256":"2a2bf0c36d71d03a602d46a3d3358ef5882cf31e652393b463cce4ef28d61d2f","abstract_canon_sha256":"1ccc53531817d152d7f920cffd3bd8650cf8e79405be3606d091daacfbad2b32"},"schema_version":"1.0"},"canonical_sha256":"0c76e4137a0f68b79afafc6a5a631bd7d435472c0460723fbaf6d987e759ee6f","source":{"kind":"arxiv","id":"2511.06426","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2511.06426","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"arxiv_version","alias_value":"2511.06426v3","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.06426","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"pith_short_12","alias_value":"BR3OIE32B5UL","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"pith_short_16","alias_value":"BR3OIE32B5ULPGX2","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"pith_short_8","alias_value":"BR3OIE32","created_at":"2026-06-09T02:07:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BR3OIE32B5ULPGX27RVFUYY327","target":"record","payload":{"canonical_record":{"source":{"id":"2511.06426","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2025-11-09T15:46:26Z","cross_cats_sorted":[],"title_canon_sha256":"2a2bf0c36d71d03a602d46a3d3358ef5882cf31e652393b463cce4ef28d61d2f","abstract_canon_sha256":"1ccc53531817d152d7f920cffd3bd8650cf8e79405be3606d091daacfbad2b32"},"schema_version":"1.0"},"canonical_sha256":"0c76e4137a0f68b79afafc6a5a631bd7d435472c0460723fbaf6d987e759ee6f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-09T02:07:12.542385Z","signature_b64":"x+6CwKfQgr2cNGfmaw2x5FGS5t2xVBFmalHHwf6apQdmZJpismkG4mLgx4S1yRoPyyuA16t6E/WSeDHbr/DBDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0c76e4137a0f68b79afafc6a5a631bd7d435472c0460723fbaf6d987e759ee6f","last_reissued_at":"2026-06-09T02:07:12.541394Z","signature_status":"signed_v1","first_computed_at":"2026-06-09T02:07:12.541394Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2511.06426","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-09T02:07:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WUJjtIVU+vW098UjbDDpi8fIwyN/3k5ht/7Uh1ZU/hD5ABU1bCQnYxN+x3DmYDghx0Mn8F105gKOvn237x5nBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T23:19:31.154704Z"},"content_sha256":"45f8dd02b629dcfa880a0502d452185d58a1393738624f252a7b59ac1769737d","schema_version":"1.0","event_id":"sha256:45f8dd02b629dcfa880a0502d452185d58a1393738624f252a7b59ac1769737d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BR3OIE32B5ULPGX27RVFUYY327","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robust Parametric Estimation of Avian Cranial Morphology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.QM","authors_text":"Gary P. T. Choi, Kaikwan Lau","submitted_at":"2025-11-09T15:46:26Z","abstract_excerpt":"Understanding the growth and form of complex morphological structures is one of the most fundamental problems in biology. While many prior works have analyzed the beak morphology of Darwin's finches, other cranial features are relatively less explored. In this work, we develop geometric and statistical methods for analyzing the skull morphology of Darwin's finches and their relatives, focusing on the relationship between their skull dimensions, orbit curvature, and neurocranial geometries. Unlike traditional landmark-based approaches that scale linearly with human labor, our framework is fully"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.06426","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2511.06426/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-06-09T02:07:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZFAIcsXQvNEeGbj1iVeV2ajoqVj+DNUBx8WBfNETdcdPuEWNaB0LvZ44zyz9YDmzT/1RAs4LYmCTeikFnm/8AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T23:19:31.155451Z"},"content_sha256":"d33cd11ef1b5a76255f057b67d292c99ff1e897dd2c2a82534cceb501eb98c52","schema_version":"1.0","event_id":"sha256:d33cd11ef1b5a76255f057b67d292c99ff1e897dd2c2a82534cceb501eb98c52"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BR3OIE32B5ULPGX27RVFUYY327/bundle.json","state_url":"https://pith.science/pith/BR3OIE32B5ULPGX27RVFUYY327/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BR3OIE32B5ULPGX27RVFUYY327/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":"2026-06-11T23:19:31Z","links":{"resolver":"https://pith.science/pith/BR3OIE32B5ULPGX27RVFUYY327","bundle":"https://pith.science/pith/BR3OIE32B5ULPGX27RVFUYY327/bundle.json","state":"https://pith.science/pith/BR3OIE32B5ULPGX27RVFUYY327/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BR3OIE32B5ULPGX27RVFUYY327/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BR3OIE32B5ULPGX27RVFUYY327","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":"1ccc53531817d152d7f920cffd3bd8650cf8e79405be3606d091daacfbad2b32","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2025-11-09T15:46:26Z","title_canon_sha256":"2a2bf0c36d71d03a602d46a3d3358ef5882cf31e652393b463cce4ef28d61d2f"},"schema_version":"1.0","source":{"id":"2511.06426","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2511.06426","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"arxiv_version","alias_value":"2511.06426v3","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.06426","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"pith_short_12","alias_value":"BR3OIE32B5UL","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"pith_short_16","alias_value":"BR3OIE32B5ULPGX2","created_at":"2026-06-09T02:07:12Z"},{"alias_kind":"pith_short_8","alias_value":"BR3OIE32","created_at":"2026-06-09T02:07:12Z"}],"graph_snapshots":[{"event_id":"sha256:d33cd11ef1b5a76255f057b67d292c99ff1e897dd2c2a82534cceb501eb98c52","target":"graph","created_at":"2026-06-09T02:07:12Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2511.06426/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Understanding the growth and form of complex morphological structures is one of the most fundamental problems in biology. While many prior works have analyzed the beak morphology of Darwin's finches, other cranial features are relatively less explored. In this work, we develop geometric and statistical methods for analyzing the skull morphology of Darwin's finches and their relatives, focusing on the relationship between their skull dimensions, orbit curvature, and neurocranial geometries. Unlike traditional landmark-based approaches that scale linearly with human labor, our framework is fully","authors_text":"Gary P. T. Choi, Kaikwan Lau","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2025-11-09T15:46:26Z","title":"Robust Parametric Estimation of Avian Cranial Morphology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.06426","kind":"arxiv","version":3},"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":"sha256:45f8dd02b629dcfa880a0502d452185d58a1393738624f252a7b59ac1769737d","target":"record","created_at":"2026-06-09T02:07:12Z","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":"1ccc53531817d152d7f920cffd3bd8650cf8e79405be3606d091daacfbad2b32","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2025-11-09T15:46:26Z","title_canon_sha256":"2a2bf0c36d71d03a602d46a3d3358ef5882cf31e652393b463cce4ef28d61d2f"},"schema_version":"1.0","source":{"id":"2511.06426","kind":"arxiv","version":3}},"canonical_sha256":"0c76e4137a0f68b79afafc6a5a631bd7d435472c0460723fbaf6d987e759ee6f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c76e4137a0f68b79afafc6a5a631bd7d435472c0460723fbaf6d987e759ee6f","first_computed_at":"2026-06-09T02:07:12.541394Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-09T02:07:12.541394Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"x+6CwKfQgr2cNGfmaw2x5FGS5t2xVBFmalHHwf6apQdmZJpismkG4mLgx4S1yRoPyyuA16t6E/WSeDHbr/DBDg==","signature_status":"signed_v1","signed_at":"2026-06-09T02:07:12.542385Z","signed_message":"canonical_sha256_bytes"},"source_id":"2511.06426","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:45f8dd02b629dcfa880a0502d452185d58a1393738624f252a7b59ac1769737d","sha256:d33cd11ef1b5a76255f057b67d292c99ff1e897dd2c2a82534cceb501eb98c52"],"state_sha256":"e728cabf70b000ab4735739b0857ca6a5f4058fac8eeae4fa60e28e961644b2f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oEnIbAIBbc4VNiYIL70AJ9cCyLxWNfzOgSFsnU/mDSfnN9pkk5HHErduEEXMuSm4ELdBYl3kKThPe45+s49tAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T23:19:31.159516Z","bundle_sha256":"43f054e840173b4b1907ac979506ba076e2f9cacfa295e8efbad20e609101de3"}}