{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:QUIHZLU2TSM6NVYVAZ4N2HS42B","short_pith_number":"pith:QUIHZLU2","canonical_record":{"source":{"id":"1603.00473","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-03-01T21:00:08Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"0920e664889cc29b85bbf73336fde44b35f2371eb7c3a830affb7c2c9c54356d","abstract_canon_sha256":"da2c6d17d7e93aa0f05ab8413e02529b1c0395df9e477b6dd90caadebe687514"},"schema_version":"1.0"},"canonical_sha256":"85107cae9a9c99e6d7150678dd1e5cd0527b4d92edcb2e94c21e9e3f6299efce","source":{"kind":"arxiv","id":"1603.00473","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.00473","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"arxiv_version","alias_value":"1603.00473v1","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.00473","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"pith_short_12","alias_value":"QUIHZLU2TSM6","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"QUIHZLU2TSM6NVYV","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"QUIHZLU2","created_at":"2026-05-18T12:30:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:QUIHZLU2TSM6NVYVAZ4N2HS42B","target":"record","payload":{"canonical_record":{"source":{"id":"1603.00473","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-03-01T21:00:08Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"0920e664889cc29b85bbf73336fde44b35f2371eb7c3a830affb7c2c9c54356d","abstract_canon_sha256":"da2c6d17d7e93aa0f05ab8413e02529b1c0395df9e477b6dd90caadebe687514"},"schema_version":"1.0"},"canonical_sha256":"85107cae9a9c99e6d7150678dd1e5cd0527b4d92edcb2e94c21e9e3f6299efce","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:17:41.128906Z","signature_b64":"58+cZITdoEuTkyu8DCQnQj1j7a8l9NxCZlvFqsCvKcFoF+qHABGMdCyorqDzzfZwwrEliX32QzMocwohsZVhDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85107cae9a9c99e6d7150678dd1e5cd0527b4d92edcb2e94c21e9e3f6299efce","last_reissued_at":"2026-05-18T01:17:41.128139Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:17:41.128139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1603.00473","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":"2026-05-18T01:17:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZxmZIcbhmlDW5gcVvroy8iGk3XCg1juby+4sR7UKRA9q0Uel9ux37AmTrzbVXNxCwGUQgVLlNflEgB23mE5tBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:26:35.251018Z"},"content_sha256":"f546b7a90dd918d811ab5174fd59fe8b52bd5eea0f899889bf120e17afc37972","schema_version":"1.0","event_id":"sha256:f546b7a90dd918d811ab5174fd59fe8b52bd5eea0f899889bf120e17afc37972"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:QUIHZLU2TSM6NVYVAZ4N2HS42B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multi-band morpho-Spectral Component Analysis Deblending Tool (MuSCADeT): Deblending colourful objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"F. Courbin, J.-L. Starck, R. Joseph","submitted_at":"2016-03-01T21:00:08Z","abstract_excerpt":"We introduce a new algorithm for colour separation and deblending of multi-band astronomical images called MuSCADeT which is based on Morpho-spectral Component Analysis of multi-band images. The MuSCADeT algorithm takes advantage of the sparsity of astronomical objects in morphological dictionaries such as wavelets and their differences in spectral energy distribution (SED) across multi-band observations. This allows us to devise a model independent and automated approach to separate objects with different colours. We show with simulations that we are able to separate highly blended objects an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.00473","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":"2026-05-18T01:17:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vWmG6ezizXpf1RZ4MJEEmiiN0H1+iBkij8AmExXWDb/4rzHJjT5fnQRVGRNmBytSRgIwBRanLDJOlEmHs2fRAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:26:35.251389Z"},"content_sha256":"b68640c879d0ba19003756c6e7f8174151ce4cb47895c738c3422796342369d9","schema_version":"1.0","event_id":"sha256:b68640c879d0ba19003756c6e7f8174151ce4cb47895c738c3422796342369d9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QUIHZLU2TSM6NVYVAZ4N2HS42B/bundle.json","state_url":"https://pith.science/pith/QUIHZLU2TSM6NVYVAZ4N2HS42B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QUIHZLU2TSM6NVYVAZ4N2HS42B/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":"2026-06-01T11:26:35Z","links":{"resolver":"https://pith.science/pith/QUIHZLU2TSM6NVYVAZ4N2HS42B","bundle":"https://pith.science/pith/QUIHZLU2TSM6NVYVAZ4N2HS42B/bundle.json","state":"https://pith.science/pith/QUIHZLU2TSM6NVYVAZ4N2HS42B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QUIHZLU2TSM6NVYVAZ4N2HS42B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:QUIHZLU2TSM6NVYVAZ4N2HS42B","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":"da2c6d17d7e93aa0f05ab8413e02529b1c0395df9e477b6dd90caadebe687514","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-03-01T21:00:08Z","title_canon_sha256":"0920e664889cc29b85bbf73336fde44b35f2371eb7c3a830affb7c2c9c54356d"},"schema_version":"1.0","source":{"id":"1603.00473","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.00473","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"arxiv_version","alias_value":"1603.00473v1","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.00473","created_at":"2026-05-18T01:17:41Z"},{"alias_kind":"pith_short_12","alias_value":"QUIHZLU2TSM6","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"QUIHZLU2TSM6NVYV","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"QUIHZLU2","created_at":"2026-05-18T12:30:41Z"}],"graph_snapshots":[{"event_id":"sha256:b68640c879d0ba19003756c6e7f8174151ce4cb47895c738c3422796342369d9","target":"graph","created_at":"2026-05-18T01:17:41Z","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 introduce a new algorithm for colour separation and deblending of multi-band astronomical images called MuSCADeT which is based on Morpho-spectral Component Analysis of multi-band images. The MuSCADeT algorithm takes advantage of the sparsity of astronomical objects in morphological dictionaries such as wavelets and their differences in spectral energy distribution (SED) across multi-band observations. This allows us to devise a model independent and automated approach to separate objects with different colours. We show with simulations that we are able to separate highly blended objects an","authors_text":"F. Courbin, J.-L. Starck, R. Joseph","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-03-01T21:00:08Z","title":"Multi-band morpho-Spectral Component Analysis Deblending Tool (MuSCADeT): Deblending colourful objects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.00473","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:f546b7a90dd918d811ab5174fd59fe8b52bd5eea0f899889bf120e17afc37972","target":"record","created_at":"2026-05-18T01:17:41Z","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":"da2c6d17d7e93aa0f05ab8413e02529b1c0395df9e477b6dd90caadebe687514","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-03-01T21:00:08Z","title_canon_sha256":"0920e664889cc29b85bbf73336fde44b35f2371eb7c3a830affb7c2c9c54356d"},"schema_version":"1.0","source":{"id":"1603.00473","kind":"arxiv","version":1}},"canonical_sha256":"85107cae9a9c99e6d7150678dd1e5cd0527b4d92edcb2e94c21e9e3f6299efce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85107cae9a9c99e6d7150678dd1e5cd0527b4d92edcb2e94c21e9e3f6299efce","first_computed_at":"2026-05-18T01:17:41.128139Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:17:41.128139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"58+cZITdoEuTkyu8DCQnQj1j7a8l9NxCZlvFqsCvKcFoF+qHABGMdCyorqDzzfZwwrEliX32QzMocwohsZVhDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:17:41.128906Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.00473","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f546b7a90dd918d811ab5174fd59fe8b52bd5eea0f899889bf120e17afc37972","sha256:b68640c879d0ba19003756c6e7f8174151ce4cb47895c738c3422796342369d9"],"state_sha256":"9afac05655ebf41f99d1fb2dbc1797169d752acc92a4cf8b5a3e52aa79ffde60"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vNhFkQBVX6n42Dk7gt//xikY2jfD+KqOtPk7umdKeP41foHGJPMcCfKJelHsqXQGqa9CvbO90MbnL4l626qYDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T11:26:35.253383Z","bundle_sha256":"641a98a49ff94f2f5db0c76db27bebdd59100ba1cce904efd0cd848d16a27430"}}