{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:VB4QBXFFOMR3AHBYLADWZMISWP","short_pith_number":"pith:VB4QBXFF","canonical_record":{"source":{"id":"1306.0328","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-03T08:49:55Z","cross_cats_sorted":[],"title_canon_sha256":"fd703f1269ff6b9e7ad8f28f86e1c576d7c1c90ae6c03708f0aad9a2c5c12d63","abstract_canon_sha256":"49139e5303a4dfbfb6e5655842d7001a75459cd58ecfc8558d40800ec00aa504"},"schema_version":"1.0"},"canonical_sha256":"a87900dca57323b01c3858076cb112b3defa3695cc430187f1cceefdbf8599ea","source":{"kind":"arxiv","id":"1306.0328","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0328","created_at":"2026-05-18T01:49:38Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0328v1","created_at":"2026-05-18T01:49:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0328","created_at":"2026-05-18T01:49:38Z"},{"alias_kind":"pith_short_12","alias_value":"VB4QBXFFOMR3","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VB4QBXFFOMR3AHBY","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VB4QBXFF","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:VB4QBXFFOMR3AHBYLADWZMISWP","target":"record","payload":{"canonical_record":{"source":{"id":"1306.0328","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-03T08:49:55Z","cross_cats_sorted":[],"title_canon_sha256":"fd703f1269ff6b9e7ad8f28f86e1c576d7c1c90ae6c03708f0aad9a2c5c12d63","abstract_canon_sha256":"49139e5303a4dfbfb6e5655842d7001a75459cd58ecfc8558d40800ec00aa504"},"schema_version":"1.0"},"canonical_sha256":"a87900dca57323b01c3858076cb112b3defa3695cc430187f1cceefdbf8599ea","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:38.646247Z","signature_b64":"KbOC2Z6yBDPWWwMCBLESb5w9g66woqgANlYWmRiMmABFskCos1KhHGqN79dO+60dVks/nabZ3fadsSxpL4ajBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a87900dca57323b01c3858076cb112b3defa3695cc430187f1cceefdbf8599ea","last_reissued_at":"2026-05-18T01:49:38.645797Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:38.645797Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.0328","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":"2026-05-18T01:49:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"byMEAt4o+iL5rHtmnkvVR/G4TAYcIo6J6/B63Ssum8wLXrC42QTm6MUv+b24YYZY4qK9zeCioiym3Y1UIxXnBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T14:33:56.813665Z"},"content_sha256":"e8c24ebed73ab186fe80f1d174f4468deee70b1e56f8c0261684243f742fff9c","schema_version":"1.0","event_id":"sha256:e8c24ebed73ab186fe80f1d174f4468deee70b1e56f8c0261684243f742fff9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:VB4QBXFFOMR3AHBYLADWZMISWP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gas and dust in the TW Hydrae Association as seen by the Herschel Space Observatory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Roberge, B. Montesinos, C. Eiroa, C. Pinte, D. Ardila, D. Barrado, F. Menard, G. Duch\\^ene, G. Sandell, I. Kamp, J. -C. Augereau, J. Donaldson, J. Lillo-Box, J. P. Williams, N. Hu\\'elamo, P. Riviere-Marichalar, W. F. Thi, W. R. F. Dent","submitted_at":"2013-06-03T08:49:55Z","abstract_excerpt":"Context. Circumstellar discs are the places where planets form, therefore knowledge of their evolution is crucial for our understanding of planet formation. The Herschel Space Observatory is providing valuable data for studying disc systems, thanks to its sensitivity and wavelength coverage. This paper is one of several devoted to analysing and modelling Herschel-PACS observations of various young stellar associations from the GASPS Open Time Key Programme. Aims. The aim of this paper is to elucidate the gas and dust properties of circumstellar discs in the 10 Myr TW Hya Association (TWA) usin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0328","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":"2026-05-18T01:49:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LjC92VjHaDpUxD5F0BPf/cM2M3yv5XJH0kI2kNGqA0BOu72k0EuCalZWaGuDH+WWq0ho2com+h7kguWANWLDAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T14:33:56.814036Z"},"content_sha256":"cc5cd18f5464925471809737ea27329886ec1d8313d6a6970dd7a0f42e27a1a9","schema_version":"1.0","event_id":"sha256:cc5cd18f5464925471809737ea27329886ec1d8313d6a6970dd7a0f42e27a1a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VB4QBXFFOMR3AHBYLADWZMISWP/bundle.json","state_url":"https://pith.science/pith/VB4QBXFFOMR3AHBYLADWZMISWP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VB4QBXFFOMR3AHBYLADWZMISWP/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":"2026-06-01T14:33:56Z","links":{"resolver":"https://pith.science/pith/VB4QBXFFOMR3AHBYLADWZMISWP","bundle":"https://pith.science/pith/VB4QBXFFOMR3AHBYLADWZMISWP/bundle.json","state":"https://pith.science/pith/VB4QBXFFOMR3AHBYLADWZMISWP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VB4QBXFFOMR3AHBYLADWZMISWP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:VB4QBXFFOMR3AHBYLADWZMISWP","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":"49139e5303a4dfbfb6e5655842d7001a75459cd58ecfc8558d40800ec00aa504","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-03T08:49:55Z","title_canon_sha256":"fd703f1269ff6b9e7ad8f28f86e1c576d7c1c90ae6c03708f0aad9a2c5c12d63"},"schema_version":"1.0","source":{"id":"1306.0328","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0328","created_at":"2026-05-18T01:49:38Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0328v1","created_at":"2026-05-18T01:49:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0328","created_at":"2026-05-18T01:49:38Z"},{"alias_kind":"pith_short_12","alias_value":"VB4QBXFFOMR3","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VB4QBXFFOMR3AHBY","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VB4QBXFF","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:cc5cd18f5464925471809737ea27329886ec1d8313d6a6970dd7a0f42e27a1a9","target":"graph","created_at":"2026-05-18T01:49:38Z","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":"Context. Circumstellar discs are the places where planets form, therefore knowledge of their evolution is crucial for our understanding of planet formation. The Herschel Space Observatory is providing valuable data for studying disc systems, thanks to its sensitivity and wavelength coverage. This paper is one of several devoted to analysing and modelling Herschel-PACS observations of various young stellar associations from the GASPS Open Time Key Programme. Aims. The aim of this paper is to elucidate the gas and dust properties of circumstellar discs in the 10 Myr TW Hya Association (TWA) usin","authors_text":"A. Roberge, B. Montesinos, C. Eiroa, C. Pinte, D. Ardila, D. Barrado, F. Menard, G. Duch\\^ene, G. Sandell, I. Kamp, J. -C. Augereau, J. Donaldson, J. Lillo-Box, J. P. Williams, N. Hu\\'elamo, P. Riviere-Marichalar, W. F. Thi, W. R. F. Dent","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-03T08:49:55Z","title":"Gas and dust in the TW Hydrae Association as seen by the Herschel Space Observatory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0328","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:e8c24ebed73ab186fe80f1d174f4468deee70b1e56f8c0261684243f742fff9c","target":"record","created_at":"2026-05-18T01:49:38Z","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":"49139e5303a4dfbfb6e5655842d7001a75459cd58ecfc8558d40800ec00aa504","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-03T08:49:55Z","title_canon_sha256":"fd703f1269ff6b9e7ad8f28f86e1c576d7c1c90ae6c03708f0aad9a2c5c12d63"},"schema_version":"1.0","source":{"id":"1306.0328","kind":"arxiv","version":1}},"canonical_sha256":"a87900dca57323b01c3858076cb112b3defa3695cc430187f1cceefdbf8599ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a87900dca57323b01c3858076cb112b3defa3695cc430187f1cceefdbf8599ea","first_computed_at":"2026-05-18T01:49:38.645797Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:38.645797Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KbOC2Z6yBDPWWwMCBLESb5w9g66woqgANlYWmRiMmABFskCos1KhHGqN79dO+60dVks/nabZ3fadsSxpL4ajBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:38.646247Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.0328","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e8c24ebed73ab186fe80f1d174f4468deee70b1e56f8c0261684243f742fff9c","sha256:cc5cd18f5464925471809737ea27329886ec1d8313d6a6970dd7a0f42e27a1a9"],"state_sha256":"3da56efe073cdfa3ddcab561cca033594b6482a1622dd37d41b84e20e977e75a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jqiLHtvDTkWDBHqBx4rH6FHK4PYOL/2kxcQ08+d4u6UGwajmv2xJbPoE7wmZI51fFEgYK1bw9nphez6F1K8+Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T14:33:56.816062Z","bundle_sha256":"6cdc40ad47cab1a48bdb8598ad597f084860252a75b6c12bcefec71b16fb1ff2"}}