{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:YX4ZBGTBANJQNWD765W4GRVAHY","short_pith_number":"pith:YX4ZBGTB","canonical_record":{"source":{"id":"2412.03642","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-04T19:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"c85a75f295a5ec15e8d0c017ee2956c77d9c622f4026023a5c72aa68130c0aee","abstract_canon_sha256":"c44e17e09d6533602815fec494457d06a5ca2dd09a50edccd9cadef17a3119f1"},"schema_version":"1.0"},"canonical_sha256":"c5f9909a61035306d87ff76dc346a03e2d014f362f875720b2568540ddee1dcf","source":{"kind":"arxiv","id":"2412.03642","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.03642","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"arxiv_version","alias_value":"2412.03642v1","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.03642","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"pith_short_12","alias_value":"YX4ZBGTBANJQ","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"pith_short_16","alias_value":"YX4ZBGTBANJQNWD7","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"pith_short_8","alias_value":"YX4ZBGTB","created_at":"2026-07-05T10:03:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:YX4ZBGTBANJQNWD765W4GRVAHY","target":"record","payload":{"canonical_record":{"source":{"id":"2412.03642","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-04T19:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"c85a75f295a5ec15e8d0c017ee2956c77d9c622f4026023a5c72aa68130c0aee","abstract_canon_sha256":"c44e17e09d6533602815fec494457d06a5ca2dd09a50edccd9cadef17a3119f1"},"schema_version":"1.0"},"canonical_sha256":"c5f9909a61035306d87ff76dc346a03e2d014f362f875720b2568540ddee1dcf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:03:29.397084Z","signature_b64":"ODD3Qc/34Pknjqf//lRyKd/rplT/DARvCEPWN/UdSx6CGullhyPPwQLJiel5MouuNezZiDEefh0GhZ6nZCVfBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5f9909a61035306d87ff76dc346a03e2d014f362f875720b2568540ddee1dcf","last_reissued_at":"2026-07-05T10:03:29.396654Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:03:29.396654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.03642","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":"2026-07-05T10:03:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3a7kdH6tjC1Eh8X9kl0miUO+ZrueF1EH1e86INW2RfSkqIrZ1KaqdWwPAMbIKBla8FXmRSh4Kgb/KyGmS37/Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T05:50:00.039386Z"},"content_sha256":"f71a6d7d575e517ed972ea57ccb5de3c62cfa6ffb2f7e6496f0839e50d9bf2d2","schema_version":"1.0","event_id":"sha256:f71a6d7d575e517ed972ea57ccb5de3c62cfa6ffb2f7e6496f0839e50d9bf2d2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:YX4ZBGTBANJQNWD765W4GRVAHY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Automated galaxy sizes in Euclid images using the Segment Anything Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Sahelices, F. Buitrago, H. Dom\\'inguez S\\'anchez, J. Fern\\'andez-Iglesias, J. Vega-Ferrero, S. Raji","submitted_at":"2024-12-04T19:00:00Z","abstract_excerpt":"Stellar disk truncations, also referred to as galaxy edges, are key indicators of galactic size, determined by the radial location of the gas density threshold for star formation. Accurately measuring galaxy sizes for millions of galaxies is essential for understanding the physical processes driving galaxy evolution over cosmic time. In this study, we aim to explore the potential of the Segment Anything Model (SAM), a foundation model designed for image segmentation, to automatically identify disk truncations in galaxy images. With the Euclid Wide Survey poised to deliver vast datasets, our go"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.03642","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2412.03642/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":"2026-07-05T10:03:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m/b6wAj2GUSBqxnfe9LGDlhInqrrQXq8S/UIai950T7ARLOmds8vKfMD1H3zVDwV3elSlSYeISVXMt5D5tAvDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T05:50:00.039901Z"},"content_sha256":"831a4a611e966e98b0c9be5f5682740808b51e2a2b7e361550f098f7c6a470e9","schema_version":"1.0","event_id":"sha256:831a4a611e966e98b0c9be5f5682740808b51e2a2b7e361550f098f7c6a470e9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YX4ZBGTBANJQNWD765W4GRVAHY/bundle.json","state_url":"https://pith.science/pith/YX4ZBGTBANJQNWD765W4GRVAHY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YX4ZBGTBANJQNWD765W4GRVAHY/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":"2026-08-22T05:50:00Z","links":{"resolver":"https://pith.science/pith/YX4ZBGTBANJQNWD765W4GRVAHY","bundle":"https://pith.science/pith/YX4ZBGTBANJQNWD765W4GRVAHY/bundle.json","state":"https://pith.science/pith/YX4ZBGTBANJQNWD765W4GRVAHY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YX4ZBGTBANJQNWD765W4GRVAHY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:YX4ZBGTBANJQNWD765W4GRVAHY","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":"c44e17e09d6533602815fec494457d06a5ca2dd09a50edccd9cadef17a3119f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-04T19:00:00Z","title_canon_sha256":"c85a75f295a5ec15e8d0c017ee2956c77d9c622f4026023a5c72aa68130c0aee"},"schema_version":"1.0","source":{"id":"2412.03642","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.03642","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"arxiv_version","alias_value":"2412.03642v1","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.03642","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"pith_short_12","alias_value":"YX4ZBGTBANJQ","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"pith_short_16","alias_value":"YX4ZBGTBANJQNWD7","created_at":"2026-07-05T10:03:29Z"},{"alias_kind":"pith_short_8","alias_value":"YX4ZBGTB","created_at":"2026-07-05T10:03:29Z"}],"graph_snapshots":[{"event_id":"sha256:831a4a611e966e98b0c9be5f5682740808b51e2a2b7e361550f098f7c6a470e9","target":"graph","created_at":"2026-07-05T10:03:29Z","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/2412.03642/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Stellar disk truncations, also referred to as galaxy edges, are key indicators of galactic size, determined by the radial location of the gas density threshold for star formation. Accurately measuring galaxy sizes for millions of galaxies is essential for understanding the physical processes driving galaxy evolution over cosmic time. In this study, we aim to explore the potential of the Segment Anything Model (SAM), a foundation model designed for image segmentation, to automatically identify disk truncations in galaxy images. With the Euclid Wide Survey poised to deliver vast datasets, our go","authors_text":"B. Sahelices, F. Buitrago, H. Dom\\'inguez S\\'anchez, J. Fern\\'andez-Iglesias, J. Vega-Ferrero, S. Raji","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-04T19:00:00Z","title":"Automated galaxy sizes in Euclid images using the Segment Anything Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.03642","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:f71a6d7d575e517ed972ea57ccb5de3c62cfa6ffb2f7e6496f0839e50d9bf2d2","target":"record","created_at":"2026-07-05T10:03:29Z","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":"c44e17e09d6533602815fec494457d06a5ca2dd09a50edccd9cadef17a3119f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-12-04T19:00:00Z","title_canon_sha256":"c85a75f295a5ec15e8d0c017ee2956c77d9c622f4026023a5c72aa68130c0aee"},"schema_version":"1.0","source":{"id":"2412.03642","kind":"arxiv","version":1}},"canonical_sha256":"c5f9909a61035306d87ff76dc346a03e2d014f362f875720b2568540ddee1dcf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5f9909a61035306d87ff76dc346a03e2d014f362f875720b2568540ddee1dcf","first_computed_at":"2026-07-05T10:03:29.396654Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:03:29.396654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ODD3Qc/34Pknjqf//lRyKd/rplT/DARvCEPWN/UdSx6CGullhyPPwQLJiel5MouuNezZiDEefh0GhZ6nZCVfBg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:03:29.397084Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.03642","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f71a6d7d575e517ed972ea57ccb5de3c62cfa6ffb2f7e6496f0839e50d9bf2d2","sha256:831a4a611e966e98b0c9be5f5682740808b51e2a2b7e361550f098f7c6a470e9"],"state_sha256":"a981457237b35f16878da06a6951bb62dd42738ef12cb707ef551607e035a38d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RwD59VjfZjuzBbkJA6ZpWPZf4gKutvB1D4MebVoLLBzzhl86X9bOQTVBuuzealuMmPFT/PosETxbMmMl7LrRAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T05:50:00.045280Z","bundle_sha256":"dfa81c03e8fb6e08763537940cbeec650504d1deae36a09a72b40ca8b5a7e929"}}