{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:EPRYXI37FVJLNUMEYO2WNLJRTU","short_pith_number":"pith:EPRYXI37","canonical_record":{"source":{"id":"1201.0766","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-01-03T21:01:16Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"be5c9a3f79df4ba47b0ea02262190d54fa493de085e518cd0f60263a3e3871a3","abstract_canon_sha256":"e12043e6390c9dd079b3514a6486d0077e951647ff803fef6912ddb68dc230c3"},"schema_version":"1.0"},"canonical_sha256":"23e38ba37f2d52b6d184c3b566ad319d0a203f2fed0b9b4b1d880ce0751fc51f","source":{"kind":"arxiv","id":"1201.0766","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.0766","created_at":"2026-05-18T01:58:58Z"},{"alias_kind":"arxiv_version","alias_value":"1201.0766v2","created_at":"2026-05-18T01:58:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.0766","created_at":"2026-05-18T01:58:58Z"},{"alias_kind":"pith_short_12","alias_value":"EPRYXI37FVJL","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"EPRYXI37FVJLNUME","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"EPRYXI37","created_at":"2026-05-18T12:27:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:EPRYXI37FVJLNUMEYO2WNLJRTU","target":"record","payload":{"canonical_record":{"source":{"id":"1201.0766","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-01-03T21:01:16Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"be5c9a3f79df4ba47b0ea02262190d54fa493de085e518cd0f60263a3e3871a3","abstract_canon_sha256":"e12043e6390c9dd079b3514a6486d0077e951647ff803fef6912ddb68dc230c3"},"schema_version":"1.0"},"canonical_sha256":"23e38ba37f2d52b6d184c3b566ad319d0a203f2fed0b9b4b1d880ce0751fc51f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:58.195451Z","signature_b64":"EFpMCkQm3itVxlxnbfom+lG+if9q0wmcVWYjYyOKW4Ncf0PaZa9c+5bw6K605ZH3/gNlytieSUqSQfu1Vo2KCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23e38ba37f2d52b6d184c3b566ad319d0a203f2fed0b9b4b1d880ce0751fc51f","last_reissued_at":"2026-05-18T01:58:58.194845Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:58.194845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.0766","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:58:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"azd+i8/GegQ3srE5yisYwh2lJr9K/MixEY54ypymzvJnOZCC9/jZoJ3KoLwYSsrZhZjg52poLM6l8a68OaqYAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T21:01:59.209690Z"},"content_sha256":"c97ab7ec541eddc2742e62b98aeabddce3f1932e8e112628c3e6bb94e8ac8a19","schema_version":"1.0","event_id":"sha256:c97ab7ec541eddc2742e62b98aeabddce3f1932e8e112628c3e6bb94e8ac8a19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:EPRYXI37FVJLNUMEYO2WNLJRTU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First Detection of Near-Infrared Line Emission from Organics in Young Circumstellar Disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. M. Mandell, C. Salyk, E. F. van Dishoeck, G. A. Blake, G. Villanueva, J. Bast, M. J. Mumma","submitted_at":"2012-01-03T21:01:16Z","abstract_excerpt":"We present an analysis of high-resolution spectroscopy of several bright T Tauri stars using the VLT/CRIRES and Keck/NIRSPEC spectrographs, revealing the first detections of emission from HCN and C2H2 in circumstellar disks at near-infrared wavelengths. Using advanced data reduction techniques we achieve a dynamic range with respect to the disk continuum of ~500 at 3 microns, revealing multiple emission features of H2O, OH, HCN, and C2H2. We also present stringent upper limits for two other molecules thought to be abundant in the inner disk, CH4 and NH3. Line profiles for the different detecte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.0766","kind":"arxiv","version":2},"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":"2026-05-18T01:58:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YSn4VJfVSfBmaniiVqqrXEVcOXgeI2Gk/8ePcXu7Htqvj0ewAI8BtPgexymK0g3XSbTv3bRrvWrrWT+QW9MaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T21:01:59.210395Z"},"content_sha256":"ca2f7478f891ffcd8e2722f102e7012150285a8af62a9e1df35cc9a75e958d61","schema_version":"1.0","event_id":"sha256:ca2f7478f891ffcd8e2722f102e7012150285a8af62a9e1df35cc9a75e958d61"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EPRYXI37FVJLNUMEYO2WNLJRTU/bundle.json","state_url":"https://pith.science/pith/EPRYXI37FVJLNUMEYO2WNLJRTU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EPRYXI37FVJLNUMEYO2WNLJRTU/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":"2026-06-10T21:01:59Z","links":{"resolver":"https://pith.science/pith/EPRYXI37FVJLNUMEYO2WNLJRTU","bundle":"https://pith.science/pith/EPRYXI37FVJLNUMEYO2WNLJRTU/bundle.json","state":"https://pith.science/pith/EPRYXI37FVJLNUMEYO2WNLJRTU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EPRYXI37FVJLNUMEYO2WNLJRTU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:EPRYXI37FVJLNUMEYO2WNLJRTU","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":"e12043e6390c9dd079b3514a6486d0077e951647ff803fef6912ddb68dc230c3","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-01-03T21:01:16Z","title_canon_sha256":"be5c9a3f79df4ba47b0ea02262190d54fa493de085e518cd0f60263a3e3871a3"},"schema_version":"1.0","source":{"id":"1201.0766","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.0766","created_at":"2026-05-18T01:58:58Z"},{"alias_kind":"arxiv_version","alias_value":"1201.0766v2","created_at":"2026-05-18T01:58:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.0766","created_at":"2026-05-18T01:58:58Z"},{"alias_kind":"pith_short_12","alias_value":"EPRYXI37FVJL","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"EPRYXI37FVJLNUME","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"EPRYXI37","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:ca2f7478f891ffcd8e2722f102e7012150285a8af62a9e1df35cc9a75e958d61","target":"graph","created_at":"2026-05-18T01:58:58Z","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 present an analysis of high-resolution spectroscopy of several bright T Tauri stars using the VLT/CRIRES and Keck/NIRSPEC spectrographs, revealing the first detections of emission from HCN and C2H2 in circumstellar disks at near-infrared wavelengths. Using advanced data reduction techniques we achieve a dynamic range with respect to the disk continuum of ~500 at 3 microns, revealing multiple emission features of H2O, OH, HCN, and C2H2. We also present stringent upper limits for two other molecules thought to be abundant in the inner disk, CH4 and NH3. Line profiles for the different detecte","authors_text":"A. M. Mandell, C. Salyk, E. F. van Dishoeck, G. A. Blake, G. Villanueva, J. Bast, M. J. Mumma","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-01-03T21:01:16Z","title":"First Detection of Near-Infrared Line Emission from Organics in Young Circumstellar Disks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.0766","kind":"arxiv","version":2},"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:c97ab7ec541eddc2742e62b98aeabddce3f1932e8e112628c3e6bb94e8ac8a19","target":"record","created_at":"2026-05-18T01:58:58Z","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":"e12043e6390c9dd079b3514a6486d0077e951647ff803fef6912ddb68dc230c3","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-01-03T21:01:16Z","title_canon_sha256":"be5c9a3f79df4ba47b0ea02262190d54fa493de085e518cd0f60263a3e3871a3"},"schema_version":"1.0","source":{"id":"1201.0766","kind":"arxiv","version":2}},"canonical_sha256":"23e38ba37f2d52b6d184c3b566ad319d0a203f2fed0b9b4b1d880ce0751fc51f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23e38ba37f2d52b6d184c3b566ad319d0a203f2fed0b9b4b1d880ce0751fc51f","first_computed_at":"2026-05-18T01:58:58.194845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:58.194845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EFpMCkQm3itVxlxnbfom+lG+if9q0wmcVWYjYyOKW4Ncf0PaZa9c+5bw6K605ZH3/gNlytieSUqSQfu1Vo2KCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:58.195451Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.0766","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c97ab7ec541eddc2742e62b98aeabddce3f1932e8e112628c3e6bb94e8ac8a19","sha256:ca2f7478f891ffcd8e2722f102e7012150285a8af62a9e1df35cc9a75e958d61"],"state_sha256":"366e67945c131fda64b3ef370f9a48e6d8ffa12972474e36f23a9441c890e093"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qn5t0BPLCwH3Ppf8wCjsXMG5U6v1DTDsDUM7nojv6RDKMaU6Kp3J/RqvxO8No8FWBq6KPY5MkgZhi0gBz0BrCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T21:01:59.214056Z","bundle_sha256":"fc51ffb58345dc176b6660f9a319cd4911a5fb39c90022cf8a0212b76ae7d024"}}