{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:OXVK3HEZHBWUSRTDTAWJSTUZKY","short_pith_number":"pith:OXVK3HEZ","canonical_record":{"source":{"id":"1303.3744","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-15T11:52:50Z","cross_cats_sorted":[],"title_canon_sha256":"ef8b277f65dfa5ecae56c13dbbb9fc3014b35fe568eb6f6c29b50dd3ae5c1e39","abstract_canon_sha256":"377300016e3f53e2f1b0241cec041f046ed3a13905a524de3d3c9ec1f1c1528d"},"schema_version":"1.0"},"canonical_sha256":"75eaad9c99386d494663982c994e995606a3324b12aa632eb102221cb849bcdc","source":{"kind":"arxiv","id":"1303.3744","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.3744","created_at":"2026-05-18T01:51:06Z"},{"alias_kind":"arxiv_version","alias_value":"1303.3744v1","created_at":"2026-05-18T01:51:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.3744","created_at":"2026-05-18T01:51:06Z"},{"alias_kind":"pith_short_12","alias_value":"OXVK3HEZHBWU","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OXVK3HEZHBWUSRTD","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OXVK3HEZ","created_at":"2026-05-18T12:27:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:OXVK3HEZHBWUSRTDTAWJSTUZKY","target":"record","payload":{"canonical_record":{"source":{"id":"1303.3744","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-15T11:52:50Z","cross_cats_sorted":[],"title_canon_sha256":"ef8b277f65dfa5ecae56c13dbbb9fc3014b35fe568eb6f6c29b50dd3ae5c1e39","abstract_canon_sha256":"377300016e3f53e2f1b0241cec041f046ed3a13905a524de3d3c9ec1f1c1528d"},"schema_version":"1.0"},"canonical_sha256":"75eaad9c99386d494663982c994e995606a3324b12aa632eb102221cb849bcdc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:06.886108Z","signature_b64":"9ErkEgdeMp9gpetRyq3XF9R8ouv6glH4HZOcxwBP8YMEGfQkDSrMyBANL+AGEf/A/VHzcMirwkI/CQ1X0Y3DCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75eaad9c99386d494663982c994e995606a3324b12aa632eb102221cb849bcdc","last_reissued_at":"2026-05-18T01:51:06.885524Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:06.885524Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.3744","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":"2026-05-18T01:51:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3R7yqZUSRx8FTuY/EJqdSAwTzWAQIKU9qJvWEFmrLnU5o5+BpfF7Zphk1plIKBjucB6WelptazGNsjgcB3kGAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:33:35.529742Z"},"content_sha256":"5bad7ebfceb49674dbb91c9f8f5e491afb30a6ff4506e0a2e1778b6d27f7a62a","schema_version":"1.0","event_id":"sha256:5bad7ebfceb49674dbb91c9f8f5e491afb30a6ff4506e0a2e1778b6d27f7a62a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:OXVK3HEZHBWUSRTDTAWJSTUZKY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The 69 micron forsterite band in spectra of protoplanetary disks - Results from the Herschel DIGIT programme","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"B.Acke, B. Merin, B. Sturm, C. Dominik, E.F. van Dishoeck, G.D. Mulders, G. J. Herczeg, G. Meeus, J. Bouwman, J. C. Augereau, J.D. Green, J. Olofsson, K. Maaskant, L.B.F.M. Waters, N.J. Evans II, The DIGIT team, Th. Henning","submitted_at":"2013-03-15T11:52:50Z","abstract_excerpt":"Context: We have analysed Herschel-PACS spectra of 32 circumstellar disks around Herbig Ae/Be and T-Tauri stars obtained within the Herschel key programme DIGIT. In this paper we focus on the 69mu emission band of the crystalline silicate forsterite.\n  Aims: This work provides an overview of the 69mu forsterite bands in the DIGIT sample. We aim to derive the temperature and composition of the forsterite grains. With this information, constraints can be placed on the spatial distribution of the forsterite in the disk and its formation history.\n  Methods: Position and shape of the 69mu band are "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.3744","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":"2026-05-18T01:51:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WI6IKi+o2pkSpodDHm20DZW5LPZLZjzvC313HYPWYFio8KrGgS6O//Kq2JkC8gyTE8MbOxzQABa/OfJt4IErDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:33:35.530439Z"},"content_sha256":"6bb2dbb494dbfd5aca9f3638f6313783118d9086ded773b43a98a1f3d13b627a","schema_version":"1.0","event_id":"sha256:6bb2dbb494dbfd5aca9f3638f6313783118d9086ded773b43a98a1f3d13b627a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OXVK3HEZHBWUSRTDTAWJSTUZKY/bundle.json","state_url":"https://pith.science/pith/OXVK3HEZHBWUSRTDTAWJSTUZKY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OXVK3HEZHBWUSRTDTAWJSTUZKY/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":"2026-05-26T00:33:35Z","links":{"resolver":"https://pith.science/pith/OXVK3HEZHBWUSRTDTAWJSTUZKY","bundle":"https://pith.science/pith/OXVK3HEZHBWUSRTDTAWJSTUZKY/bundle.json","state":"https://pith.science/pith/OXVK3HEZHBWUSRTDTAWJSTUZKY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OXVK3HEZHBWUSRTDTAWJSTUZKY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:OXVK3HEZHBWUSRTDTAWJSTUZKY","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":"377300016e3f53e2f1b0241cec041f046ed3a13905a524de3d3c9ec1f1c1528d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-15T11:52:50Z","title_canon_sha256":"ef8b277f65dfa5ecae56c13dbbb9fc3014b35fe568eb6f6c29b50dd3ae5c1e39"},"schema_version":"1.0","source":{"id":"1303.3744","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.3744","created_at":"2026-05-18T01:51:06Z"},{"alias_kind":"arxiv_version","alias_value":"1303.3744v1","created_at":"2026-05-18T01:51:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.3744","created_at":"2026-05-18T01:51:06Z"},{"alias_kind":"pith_short_12","alias_value":"OXVK3HEZHBWU","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"OXVK3HEZHBWUSRTD","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"OXVK3HEZ","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:6bb2dbb494dbfd5aca9f3638f6313783118d9086ded773b43a98a1f3d13b627a","target":"graph","created_at":"2026-05-18T01:51:06Z","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: We have analysed Herschel-PACS spectra of 32 circumstellar disks around Herbig Ae/Be and T-Tauri stars obtained within the Herschel key programme DIGIT. In this paper we focus on the 69mu emission band of the crystalline silicate forsterite.\n  Aims: This work provides an overview of the 69mu forsterite bands in the DIGIT sample. We aim to derive the temperature and composition of the forsterite grains. With this information, constraints can be placed on the spatial distribution of the forsterite in the disk and its formation history.\n  Methods: Position and shape of the 69mu band are ","authors_text":"B.Acke, B. Merin, B. Sturm, C. Dominik, E.F. van Dishoeck, G.D. Mulders, G. J. Herczeg, G. Meeus, J. Bouwman, J. C. Augereau, J.D. Green, J. Olofsson, K. Maaskant, L.B.F.M. Waters, N.J. Evans II, The DIGIT team, Th. Henning","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-15T11:52:50Z","title":"The 69 micron forsterite band in spectra of protoplanetary disks - Results from the Herschel DIGIT programme"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.3744","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":"sha256:5bad7ebfceb49674dbb91c9f8f5e491afb30a6ff4506e0a2e1778b6d27f7a62a","target":"record","created_at":"2026-05-18T01:51:06Z","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":"377300016e3f53e2f1b0241cec041f046ed3a13905a524de3d3c9ec1f1c1528d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-15T11:52:50Z","title_canon_sha256":"ef8b277f65dfa5ecae56c13dbbb9fc3014b35fe568eb6f6c29b50dd3ae5c1e39"},"schema_version":"1.0","source":{"id":"1303.3744","kind":"arxiv","version":1}},"canonical_sha256":"75eaad9c99386d494663982c994e995606a3324b12aa632eb102221cb849bcdc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75eaad9c99386d494663982c994e995606a3324b12aa632eb102221cb849bcdc","first_computed_at":"2026-05-18T01:51:06.885524Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:06.885524Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9ErkEgdeMp9gpetRyq3XF9R8ouv6glH4HZOcxwBP8YMEGfQkDSrMyBANL+AGEf/A/VHzcMirwkI/CQ1X0Y3DCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:06.886108Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.3744","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5bad7ebfceb49674dbb91c9f8f5e491afb30a6ff4506e0a2e1778b6d27f7a62a","sha256:6bb2dbb494dbfd5aca9f3638f6313783118d9086ded773b43a98a1f3d13b627a"],"state_sha256":"45a01b07c12e0c3f0794ceedcc3ad9939067974d356fd9cef869be0daa3f9f1c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OvjUS42j3GtTd8gTpEsMHuXi8iWmoJlErL7dpYhjXBXopblcry9YHTg5Wi+AyiNxJILh/BMDkCfhYQPPvcqkAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T00:33:35.534179Z","bundle_sha256":"f457d8f53f0e690805920de19aa2f9809b72804fd98818be5a65f7a92ad9f86a"}}