{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:X4YZPADUYKSBCAUF5BBRM6IGLI","short_pith_number":"pith:X4YZPADU","canonical_record":{"source":{"id":"1806.03354","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-08T21:02:18Z","cross_cats_sorted":[],"title_canon_sha256":"8a796889bf16195d685b0bafb5e6967d787d25324d03bf91313eccbaa4531e97","abstract_canon_sha256":"56ba92819944ae2ac53a79374062c87bdbc602f5aff446f2a5281b45c18c8a39"},"schema_version":"1.0"},"canonical_sha256":"bf31978074c2a4110285e8431679065a3b7d378a721eca5deb46143bffcb20df","source":{"kind":"arxiv","id":"1806.03354","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.03354","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"arxiv_version","alias_value":"1806.03354v1","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.03354","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"pith_short_12","alias_value":"X4YZPADUYKSB","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"X4YZPADUYKSBCAUF","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"X4YZPADU","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:X4YZPADUYKSBCAUF5BBRM6IGLI","target":"record","payload":{"canonical_record":{"source":{"id":"1806.03354","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-08T21:02:18Z","cross_cats_sorted":[],"title_canon_sha256":"8a796889bf16195d685b0bafb5e6967d787d25324d03bf91313eccbaa4531e97","abstract_canon_sha256":"56ba92819944ae2ac53a79374062c87bdbc602f5aff446f2a5281b45c18c8a39"},"schema_version":"1.0"},"canonical_sha256":"bf31978074c2a4110285e8431679065a3b7d378a721eca5deb46143bffcb20df","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:01.718046Z","signature_b64":"42EszyqUkyC7F8BPwOSwO2GcAHrdbXf6scuaIq6FyOaPq+FkG51udsEZ2c3fEEkaSMbEQGLVgshluG+kMVITAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf31978074c2a4110285e8431679065a3b7d378a721eca5deb46143bffcb20df","last_reissued_at":"2026-05-18T00:06:01.717558Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:01.717558Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.03354","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":"2026-05-18T00:06:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n/aEV7+8MMwAJJ7zqE8IA9Sj5nbqmWNXfUxDsj2fDyh4cezpfoz75mV7Aorx5t8bpmnZ8rKyGgKkn+g03uHcAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:33:20.824917Z"},"content_sha256":"9af9e1c003728ac5019bc611671c3a5d7fd2a105e14bf6b76875cbb1eb52311a","schema_version":"1.0","event_id":"sha256:9af9e1c003728ac5019bc611671c3a5d7fd2a105e14bf6b76875cbb1eb52311a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:X4YZPADUYKSBCAUF5BBRM6IGLI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kinematics of dense gas in the L1495 filament","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Hacar, A. Pon, A. Punanova, J. E. Pineda, L. Bizzocchi, M. Tafalla, P. Caselli","submitted_at":"2018-06-08T21:02:18Z","abstract_excerpt":"We study the kinematics of the dense gas of starless and protostellar cores traced by the N2D+(2-1), N2H+(1-0), DCO+(2-1), and H13CO+(1-0) transitions along the L1495 filament and the kinematic links between the cores and the surrounding molecular cloud.\n  We measure velocity dispersions, local and total velocity gradients and estimate the specific angular momenta of 13 dense cores in the four transitions using the on-the-fly observations with the IRAM 30 m antenna. To study a possible connection to the filament gas, we use the fit results of the C18O(1-0) survey performed by Hacar et al. (201"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.03354","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":"2026-05-18T00:06:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ucv2mM2qoUQoGz2xMZZ2WXbqqwfyB99N7qHujjqS/mECu7E2202NhaRdYEz5NJc0gAUi9uBj7PS9G9Jwh9CFCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:33:20.825261Z"},"content_sha256":"4daa6e1def850e214c74582079bde33be7f55525a99e1cc1883c38a26e821d4a","schema_version":"1.0","event_id":"sha256:4daa6e1def850e214c74582079bde33be7f55525a99e1cc1883c38a26e821d4a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X4YZPADUYKSBCAUF5BBRM6IGLI/bundle.json","state_url":"https://pith.science/pith/X4YZPADUYKSBCAUF5BBRM6IGLI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X4YZPADUYKSBCAUF5BBRM6IGLI/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":"2026-06-02T13:33:20Z","links":{"resolver":"https://pith.science/pith/X4YZPADUYKSBCAUF5BBRM6IGLI","bundle":"https://pith.science/pith/X4YZPADUYKSBCAUF5BBRM6IGLI/bundle.json","state":"https://pith.science/pith/X4YZPADUYKSBCAUF5BBRM6IGLI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X4YZPADUYKSBCAUF5BBRM6IGLI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:X4YZPADUYKSBCAUF5BBRM6IGLI","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":"56ba92819944ae2ac53a79374062c87bdbc602f5aff446f2a5281b45c18c8a39","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-08T21:02:18Z","title_canon_sha256":"8a796889bf16195d685b0bafb5e6967d787d25324d03bf91313eccbaa4531e97"},"schema_version":"1.0","source":{"id":"1806.03354","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.03354","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"arxiv_version","alias_value":"1806.03354v1","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.03354","created_at":"2026-05-18T00:06:01Z"},{"alias_kind":"pith_short_12","alias_value":"X4YZPADUYKSB","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"X4YZPADUYKSBCAUF","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"X4YZPADU","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:4daa6e1def850e214c74582079bde33be7f55525a99e1cc1883c38a26e821d4a","target":"graph","created_at":"2026-05-18T00:06:01Z","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 study the kinematics of the dense gas of starless and protostellar cores traced by the N2D+(2-1), N2H+(1-0), DCO+(2-1), and H13CO+(1-0) transitions along the L1495 filament and the kinematic links between the cores and the surrounding molecular cloud.\n  We measure velocity dispersions, local and total velocity gradients and estimate the specific angular momenta of 13 dense cores in the four transitions using the on-the-fly observations with the IRAM 30 m antenna. To study a possible connection to the filament gas, we use the fit results of the C18O(1-0) survey performed by Hacar et al. (201","authors_text":"A. Hacar, A. Pon, A. Punanova, J. E. Pineda, L. Bizzocchi, M. Tafalla, P. Caselli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-08T21:02:18Z","title":"Kinematics of dense gas in the L1495 filament"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.03354","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":"sha256:9af9e1c003728ac5019bc611671c3a5d7fd2a105e14bf6b76875cbb1eb52311a","target":"record","created_at":"2026-05-18T00:06:01Z","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":"56ba92819944ae2ac53a79374062c87bdbc602f5aff446f2a5281b45c18c8a39","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-08T21:02:18Z","title_canon_sha256":"8a796889bf16195d685b0bafb5e6967d787d25324d03bf91313eccbaa4531e97"},"schema_version":"1.0","source":{"id":"1806.03354","kind":"arxiv","version":1}},"canonical_sha256":"bf31978074c2a4110285e8431679065a3b7d378a721eca5deb46143bffcb20df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf31978074c2a4110285e8431679065a3b7d378a721eca5deb46143bffcb20df","first_computed_at":"2026-05-18T00:06:01.717558Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:01.717558Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"42EszyqUkyC7F8BPwOSwO2GcAHrdbXf6scuaIq6FyOaPq+FkG51udsEZ2c3fEEkaSMbEQGLVgshluG+kMVITAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:01.718046Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.03354","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9af9e1c003728ac5019bc611671c3a5d7fd2a105e14bf6b76875cbb1eb52311a","sha256:4daa6e1def850e214c74582079bde33be7f55525a99e1cc1883c38a26e821d4a"],"state_sha256":"1cd1c86502e995dd542997a53125d6e5c9ba975a0d16c9917275aea4e154ff82"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bzBA1M4B7G9lL1g282ml4OBelA/Kl3y64t7m/Mdgg/6ulEUONMHffR4s15wMD3o1SRdAWZIsLbR1Vq32OA6uBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T13:33:20.827607Z","bundle_sha256":"f03241014fe2a7a4e8fb7f63e6bfd18ece6533c5b66815a454727137293999ba"}}