{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:TGZVF4ALUWTYTWIG5EJJ6J3UQX","short_pith_number":"pith:TGZVF4AL","canonical_record":{"source":{"id":"1603.07255","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-03-23T16:20:34Z","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"title_canon_sha256":"c73ca99e55cade323618397082303f5206abbef9e28ca4837c22e98e20e98bbc","abstract_canon_sha256":"c8db5b0254f7cf5f0fa1ffa29cc38a66e36df852b1a4f16ba54e866259ee2bc3"},"schema_version":"1.0"},"canonical_sha256":"99b352f00ba5a789d906e9129f277485c896051e0a850d7f918eaabd99ecf313","source":{"kind":"arxiv","id":"1603.07255","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.07255","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"arxiv_version","alias_value":"1603.07255v1","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.07255","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"pith_short_12","alias_value":"TGZVF4ALUWTY","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TGZVF4ALUWTYTWIG","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TGZVF4AL","created_at":"2026-05-18T12:30:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:TGZVF4ALUWTYTWIG5EJJ6J3UQX","target":"record","payload":{"canonical_record":{"source":{"id":"1603.07255","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-03-23T16:20:34Z","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"title_canon_sha256":"c73ca99e55cade323618397082303f5206abbef9e28ca4837c22e98e20e98bbc","abstract_canon_sha256":"c8db5b0254f7cf5f0fa1ffa29cc38a66e36df852b1a4f16ba54e866259ee2bc3"},"schema_version":"1.0"},"canonical_sha256":"99b352f00ba5a789d906e9129f277485c896051e0a850d7f918eaabd99ecf313","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:42.304413Z","signature_b64":"yMplsmFJ9qFGbnXbCu44klCh84lfQdLzr2/FKWwjJ5y/lR7Loag0xZvyIjZf94Mgexcb428EGHo97O9Enj4FDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"99b352f00ba5a789d906e9129f277485c896051e0a850d7f918eaabd99ecf313","last_reissued_at":"2026-05-18T01:08:42.303805Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:42.303805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1603.07255","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":"2026-05-18T01:08:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wXg3/0HwczDSKuIWuFWt+/mlQoJ+cwnRSdu1FbPJ7s3YRKT2xqPlJMTUtOFoCIOkITmebN3fjKkCgUNzNLWDAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T14:44:54.169222Z"},"content_sha256":"514e6eba58225e32cbbfdba7afc23d91ab636a7dbca911c0c32a18700537195a","schema_version":"1.0","event_id":"sha256:514e6eba58225e32cbbfdba7afc23d91ab636a7dbca911c0c32a18700537195a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:TGZVF4ALUWTYTWIG5EJJ6J3UQX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The (w)hole survey: an unbiased sample study of transition disk candidates based on Spitzer catalogs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"2), (2) Institute for Astronomy, (3) European Space Astronomy Center, (4) Kavli Institute for Astronomy, 5) ((1) Leiden Observatory, (5) Max-Planck-Institut fur Extraterrestrische Physik, Astrophysics, Bart W. Verhaar (1), Bruno Merin (3), China, Ewine F. van Dishoeck (1, Germany), Gregory Herczeg (4), Niels F.W. Ligterink (1), Nienke van der Marel (1, Sierk van Terwisga (1), Spain, The Netherlands, University of Hawaii, USA","submitted_at":"2016-03-23T16:20:34Z","abstract_excerpt":"Understanding disk evolution and dissipation is essential for studies of planet formation. Transition disks, i.e., disks with large dust cavities and gaps, are promising candidates of active evolution. About two dozen SED-selected candidates have been confirmed to have dust cavities through millimeter interferometric imaging, but this sample is biased towards the brightest disks. The Spitzer surveys of nearby low-mass star forming regions have resulted in more than 4000 Young Stellar Objects (YSOs). Using color criteria we have selected a sample of ~150 candidates, and an additional 40 candida"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.07255","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":"2026-05-18T01:08:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4mktiVNuAnIaePPH7VK6nUkJN8ZKJLc00/HbUQAfWAQstlFaqOUE8YJxkc6idVaUT/eioWLTIAHWkqcseU97Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T14:44:54.169578Z"},"content_sha256":"0cfdb89fe6e62a7617c3211d5a8bdbcd318083b776cce625c57b89b74488ae90","schema_version":"1.0","event_id":"sha256:0cfdb89fe6e62a7617c3211d5a8bdbcd318083b776cce625c57b89b74488ae90"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TGZVF4ALUWTYTWIG5EJJ6J3UQX/bundle.json","state_url":"https://pith.science/pith/TGZVF4ALUWTYTWIG5EJJ6J3UQX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TGZVF4ALUWTYTWIG5EJJ6J3UQX/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":"2026-06-08T14:44:54Z","links":{"resolver":"https://pith.science/pith/TGZVF4ALUWTYTWIG5EJJ6J3UQX","bundle":"https://pith.science/pith/TGZVF4ALUWTYTWIG5EJJ6J3UQX/bundle.json","state":"https://pith.science/pith/TGZVF4ALUWTYTWIG5EJJ6J3UQX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TGZVF4ALUWTYTWIG5EJJ6J3UQX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:TGZVF4ALUWTYTWIG5EJJ6J3UQX","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":"c8db5b0254f7cf5f0fa1ffa29cc38a66e36df852b1a4f16ba54e866259ee2bc3","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-03-23T16:20:34Z","title_canon_sha256":"c73ca99e55cade323618397082303f5206abbef9e28ca4837c22e98e20e98bbc"},"schema_version":"1.0","source":{"id":"1603.07255","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.07255","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"arxiv_version","alias_value":"1603.07255v1","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.07255","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"pith_short_12","alias_value":"TGZVF4ALUWTY","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TGZVF4ALUWTYTWIG","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TGZVF4AL","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:0cfdb89fe6e62a7617c3211d5a8bdbcd318083b776cce625c57b89b74488ae90","target":"graph","created_at":"2026-05-18T01:08:42Z","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":"Understanding disk evolution and dissipation is essential for studies of planet formation. Transition disks, i.e., disks with large dust cavities and gaps, are promising candidates of active evolution. About two dozen SED-selected candidates have been confirmed to have dust cavities through millimeter interferometric imaging, but this sample is biased towards the brightest disks. The Spitzer surveys of nearby low-mass star forming regions have resulted in more than 4000 Young Stellar Objects (YSOs). Using color criteria we have selected a sample of ~150 candidates, and an additional 40 candida","authors_text":"2), (2) Institute for Astronomy, (3) European Space Astronomy Center, (4) Kavli Institute for Astronomy, 5) ((1) Leiden Observatory, (5) Max-Planck-Institut fur Extraterrestrische Physik, Astrophysics, Bart W. Verhaar (1), Bruno Merin (3), China, Ewine F. van Dishoeck (1, Germany), Gregory Herczeg (4), Niels F.W. Ligterink (1), Nienke van der Marel (1, Sierk van Terwisga (1), Spain, The Netherlands, University of Hawaii, USA","cross_cats":["astro-ph.GA","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-03-23T16:20:34Z","title":"The (w)hole survey: an unbiased sample study of transition disk candidates based on Spitzer catalogs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.07255","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":"sha256:514e6eba58225e32cbbfdba7afc23d91ab636a7dbca911c0c32a18700537195a","target":"record","created_at":"2026-05-18T01:08:42Z","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":"c8db5b0254f7cf5f0fa1ffa29cc38a66e36df852b1a4f16ba54e866259ee2bc3","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-03-23T16:20:34Z","title_canon_sha256":"c73ca99e55cade323618397082303f5206abbef9e28ca4837c22e98e20e98bbc"},"schema_version":"1.0","source":{"id":"1603.07255","kind":"arxiv","version":1}},"canonical_sha256":"99b352f00ba5a789d906e9129f277485c896051e0a850d7f918eaabd99ecf313","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99b352f00ba5a789d906e9129f277485c896051e0a850d7f918eaabd99ecf313","first_computed_at":"2026-05-18T01:08:42.303805Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:42.303805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yMplsmFJ9qFGbnXbCu44klCh84lfQdLzr2/FKWwjJ5y/lR7Loag0xZvyIjZf94Mgexcb428EGHo97O9Enj4FDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:42.304413Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.07255","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:514e6eba58225e32cbbfdba7afc23d91ab636a7dbca911c0c32a18700537195a","sha256:0cfdb89fe6e62a7617c3211d5a8bdbcd318083b776cce625c57b89b74488ae90"],"state_sha256":"b503e939f5401776baecd8c6935e8258f42ff31a1deabe22e7165422eab74fcd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bo7Lnr0cjpUJyKla7t5ONSJWqPJsY6SRRQjilPtV1XqMHmNzx2cAoqRSBFV9URcokVlq7rDT3W5ZnJ/0Wn0NBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T14:44:54.171498Z","bundle_sha256":"2ebda4100c8f75e92129f4ac897d8bff708ad2c3985f0a502362ab85f13c22bc"}}