{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:Y3MUBRHXE75OFNWI7BUOCNX5XR","short_pith_number":"pith:Y3MUBRHX","canonical_record":{"source":{"id":"1606.03058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-09T18:36:39Z","cross_cats_sorted":[],"title_canon_sha256":"e541155c5808e92a21599795b17f56fc4bec340d5a940e0356eb4a158c22f6fe","abstract_canon_sha256":"b173d9c51923f5979956932815f527e9bf33f771ce7c49583e67ce7c958e2e8e"},"schema_version":"1.0"},"canonical_sha256":"c6d940c4f727fae2b6c8f868e136fdbc4a6c98e1b5397f59ca25e22eefd16d70","source":{"kind":"arxiv","id":"1606.03058","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.03058","created_at":"2026-05-18T01:12:38Z"},{"alias_kind":"arxiv_version","alias_value":"1606.03058v1","created_at":"2026-05-18T01:12:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.03058","created_at":"2026-05-18T01:12:38Z"},{"alias_kind":"pith_short_12","alias_value":"Y3MUBRHXE75O","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"Y3MUBRHXE75OFNWI","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"Y3MUBRHX","created_at":"2026-05-18T12:30:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:Y3MUBRHXE75OFNWI7BUOCNX5XR","target":"record","payload":{"canonical_record":{"source":{"id":"1606.03058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-09T18:36:39Z","cross_cats_sorted":[],"title_canon_sha256":"e541155c5808e92a21599795b17f56fc4bec340d5a940e0356eb4a158c22f6fe","abstract_canon_sha256":"b173d9c51923f5979956932815f527e9bf33f771ce7c49583e67ce7c958e2e8e"},"schema_version":"1.0"},"canonical_sha256":"c6d940c4f727fae2b6c8f868e136fdbc4a6c98e1b5397f59ca25e22eefd16d70","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:38.397361Z","signature_b64":"KKTSqoxzGYm7UjRoqZXpOfwI/kYKiZ0sR08XI1tXZFNf1D3VBi+GlPgjvOjIuvtf2vPjFrTSivofNpDuHCVkDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c6d940c4f727fae2b6c8f868e136fdbc4a6c98e1b5397f59ca25e22eefd16d70","last_reissued_at":"2026-05-18T01:12:38.396958Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:38.396958Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.03058","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":"2026-05-18T01:12:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5rD24Oo2YZtIG4xDwD9F5+jLiqK8NaBpjr5dYadMn7tn0EiumfeR3pmOYbEmYF6dlpuP7OmjYfF2Sr0ofP4HAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T04:50:07.812945Z"},"content_sha256":"68488bfd8bf7523956f39979cfe96e7b953ad89b10403e473729f570b31b0a70","schema_version":"1.0","event_id":"sha256:68488bfd8bf7523956f39979cfe96e7b953ad89b10403e473729f570b31b0a70"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:Y3MUBRHXE75OFNWI7BUOCNX5XR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"THz Time-Domain Spectroscopy of Mixed CO2-CH3OH Interstellar Ice Analogs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Brett A. McGuire, Geoffrey A. Blake, Marco A. Allodi, Sergio Ioppolo","submitted_at":"2016-06-09T18:36:39Z","abstract_excerpt":"The icy mantles of interstellar dust grains are the birthplaces of the primordial prebiotic molecular inventory that may eventually seed nascent solar systems and the planets and planetesimals that form therein. Here, we present a study of two of the most abundant species in these ices after water: carbon dioxide (CO2) and methanol (CH3OH) using TeraHertz (THz) time-domain spectroscopy and mid-infrared spectroscopy. We study pure and mixed-ices of these species, and demonstrate the power of the THz region of the spectrum to elucidate the long-range structure (i.e. crystalline versus amorphous)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.03058","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":"2026-05-18T01:12:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wiJJYPwj3obibOKlGNjeUmOI1c6N/wvHCLtp1DONo4QFvz3RpnHM9IQieAnb6wwWeKJCQGLg/xPHtBi9g0OrCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T04:50:07.813664Z"},"content_sha256":"cafe41796377e791ab1334f0cc4f504260a944fb07ea1b42819f3f15cbe3feb6","schema_version":"1.0","event_id":"sha256:cafe41796377e791ab1334f0cc4f504260a944fb07ea1b42819f3f15cbe3feb6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y3MUBRHXE75OFNWI7BUOCNX5XR/bundle.json","state_url":"https://pith.science/pith/Y3MUBRHXE75OFNWI7BUOCNX5XR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y3MUBRHXE75OFNWI7BUOCNX5XR/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":"2026-06-10T04:50:07Z","links":{"resolver":"https://pith.science/pith/Y3MUBRHXE75OFNWI7BUOCNX5XR","bundle":"https://pith.science/pith/Y3MUBRHXE75OFNWI7BUOCNX5XR/bundle.json","state":"https://pith.science/pith/Y3MUBRHXE75OFNWI7BUOCNX5XR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y3MUBRHXE75OFNWI7BUOCNX5XR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:Y3MUBRHXE75OFNWI7BUOCNX5XR","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":"b173d9c51923f5979956932815f527e9bf33f771ce7c49583e67ce7c958e2e8e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-09T18:36:39Z","title_canon_sha256":"e541155c5808e92a21599795b17f56fc4bec340d5a940e0356eb4a158c22f6fe"},"schema_version":"1.0","source":{"id":"1606.03058","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.03058","created_at":"2026-05-18T01:12:38Z"},{"alias_kind":"arxiv_version","alias_value":"1606.03058v1","created_at":"2026-05-18T01:12:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.03058","created_at":"2026-05-18T01:12:38Z"},{"alias_kind":"pith_short_12","alias_value":"Y3MUBRHXE75O","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"Y3MUBRHXE75OFNWI","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"Y3MUBRHX","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:cafe41796377e791ab1334f0cc4f504260a944fb07ea1b42819f3f15cbe3feb6","target":"graph","created_at":"2026-05-18T01:12:38Z","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":"The icy mantles of interstellar dust grains are the birthplaces of the primordial prebiotic molecular inventory that may eventually seed nascent solar systems and the planets and planetesimals that form therein. Here, we present a study of two of the most abundant species in these ices after water: carbon dioxide (CO2) and methanol (CH3OH) using TeraHertz (THz) time-domain spectroscopy and mid-infrared spectroscopy. We study pure and mixed-ices of these species, and demonstrate the power of the THz region of the spectrum to elucidate the long-range structure (i.e. crystalline versus amorphous)","authors_text":"Brett A. McGuire, Geoffrey A. Blake, Marco A. Allodi, Sergio Ioppolo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-09T18:36:39Z","title":"THz Time-Domain Spectroscopy of Mixed CO2-CH3OH Interstellar Ice Analogs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.03058","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":"sha256:68488bfd8bf7523956f39979cfe96e7b953ad89b10403e473729f570b31b0a70","target":"record","created_at":"2026-05-18T01:12:38Z","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":"b173d9c51923f5979956932815f527e9bf33f771ce7c49583e67ce7c958e2e8e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-09T18:36:39Z","title_canon_sha256":"e541155c5808e92a21599795b17f56fc4bec340d5a940e0356eb4a158c22f6fe"},"schema_version":"1.0","source":{"id":"1606.03058","kind":"arxiv","version":1}},"canonical_sha256":"c6d940c4f727fae2b6c8f868e136fdbc4a6c98e1b5397f59ca25e22eefd16d70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6d940c4f727fae2b6c8f868e136fdbc4a6c98e1b5397f59ca25e22eefd16d70","first_computed_at":"2026-05-18T01:12:38.396958Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:38.396958Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KKTSqoxzGYm7UjRoqZXpOfwI/kYKiZ0sR08XI1tXZFNf1D3VBi+GlPgjvOjIuvtf2vPjFrTSivofNpDuHCVkDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:38.397361Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.03058","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:68488bfd8bf7523956f39979cfe96e7b953ad89b10403e473729f570b31b0a70","sha256:cafe41796377e791ab1334f0cc4f504260a944fb07ea1b42819f3f15cbe3feb6"],"state_sha256":"25372c387fafc62f06d844a3f59d1af955c25644ccc8c47ca95d2b5bf16defba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q7pJC5uoQHS0dfIX+NhmuduUak+gl9HLTNlUYLT70tXOCE2I2nBJofbC/wKy2rUfesoEPxueh5e8hhsYZ3vRCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T04:50:07.817808Z","bundle_sha256":"a5f7273c5637e3e97c69de130586000a917cdabc9cea38453328212d5ef954b7"}}