{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:IMQEQUIX3HYJN6RIE2KVWG4OI5","short_pith_number":"pith:IMQEQUIX","canonical_record":{"source":{"id":"1808.03467","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-10T09:37:57Z","cross_cats_sorted":[],"title_canon_sha256":"82c39d65d8c6bf7cf35c36d78182aa3e9ddf1d0f8686aeb1e7fdbd9446aa6fdc","abstract_canon_sha256":"4c048ed49570ba225bc97b9758656d7d4218e4ab5b893ad5d4aa4e7ba8eb6e9e"},"schema_version":"1.0"},"canonical_sha256":"4320485117d9f096fa2826955b1b8e474f294123f3259e6fa2aad14f3b38f0cd","source":{"kind":"arxiv","id":"1808.03467","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.03467","created_at":"2026-05-18T00:01:58Z"},{"alias_kind":"arxiv_version","alias_value":"1808.03467v1","created_at":"2026-05-18T00:01:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03467","created_at":"2026-05-18T00:01:58Z"},{"alias_kind":"pith_short_12","alias_value":"IMQEQUIX3HYJ","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IMQEQUIX3HYJN6RI","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IMQEQUIX","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:IMQEQUIX3HYJN6RIE2KVWG4OI5","target":"record","payload":{"canonical_record":{"source":{"id":"1808.03467","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-10T09:37:57Z","cross_cats_sorted":[],"title_canon_sha256":"82c39d65d8c6bf7cf35c36d78182aa3e9ddf1d0f8686aeb1e7fdbd9446aa6fdc","abstract_canon_sha256":"4c048ed49570ba225bc97b9758656d7d4218e4ab5b893ad5d4aa4e7ba8eb6e9e"},"schema_version":"1.0"},"canonical_sha256":"4320485117d9f096fa2826955b1b8e474f294123f3259e6fa2aad14f3b38f0cd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:58.219419Z","signature_b64":"2JnDipUJTFWaOgdlMjIH+jpu5RUY4HNZ8x/94VYGVcgu3vjGfJBYkAg6M08MNvR41kqggHc9091Dxtdc1bPqBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4320485117d9f096fa2826955b1b8e474f294123f3259e6fa2aad14f3b38f0cd","last_reissued_at":"2026-05-18T00:01:58.218771Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:58.218771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.03467","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":"2026-05-18T00:01:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7viobvRVmNNj3aA5inuCYdSDnxd7OWZ+nuJH98X4wbBZ6lES4fOGi21PimxTHrsBBs5IMY8Y1dnR6+bOH0rWBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:44:12.284807Z"},"content_sha256":"938e11ee3e5f7b622e37c259a0fb33457ec19fcca5e0a05ceafa1775d9a80ae9","schema_version":"1.0","event_id":"sha256:938e11ee3e5f7b622e37c259a0fb33457ec19fcca5e0a05ceafa1775d9a80ae9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:IMQEQUIX3HYJN6RIE2KVWG4OI5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PACS and SPIRE range spectroscopy of cool, evolved stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Dries Nicolaes, L. Decin, M.A.T. Groenewegen, P. Royer, R. Lombaert, T. Danilovich","submitted_at":"2018-08-10T09:37:57Z","abstract_excerpt":"Context: At the end of their lives AGB stars are prolific producers of dust and gas. The details of this mass-loss process are still not understood very well. Herschel PACS and SPIRE spectra offer a unique way of investigating properties of AGB stars in general and the mass-loss process in particular. Methods: The HIPE software with the latest calibration is used to process the available PACS and SPIRE spectra of 40 evolved stars. The spectra are convolved with the response curves of the PACS and SPIRE bolometers and compared to the fluxes measured in imaging data of these sources. Custom soft"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03467","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":"2026-05-18T00:01:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Mhpip5B+pCp3nuAzb5WL+X8fSSaOVjExRCZxJVUepDMkwoBpr72VtyxuvPZOAuUshD1hPVqI/lTdYZulfAACw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:44:12.285191Z"},"content_sha256":"6ffc6b32852c284ceec3ba5821b4e857111b7f0ad4d1d6e10b38c9d0901522f0","schema_version":"1.0","event_id":"sha256:6ffc6b32852c284ceec3ba5821b4e857111b7f0ad4d1d6e10b38c9d0901522f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IMQEQUIX3HYJN6RIE2KVWG4OI5/bundle.json","state_url":"https://pith.science/pith/IMQEQUIX3HYJN6RIE2KVWG4OI5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IMQEQUIX3HYJN6RIE2KVWG4OI5/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":"2026-05-29T17:44:12Z","links":{"resolver":"https://pith.science/pith/IMQEQUIX3HYJN6RIE2KVWG4OI5","bundle":"https://pith.science/pith/IMQEQUIX3HYJN6RIE2KVWG4OI5/bundle.json","state":"https://pith.science/pith/IMQEQUIX3HYJN6RIE2KVWG4OI5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IMQEQUIX3HYJN6RIE2KVWG4OI5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IMQEQUIX3HYJN6RIE2KVWG4OI5","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":"4c048ed49570ba225bc97b9758656d7d4218e4ab5b893ad5d4aa4e7ba8eb6e9e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-10T09:37:57Z","title_canon_sha256":"82c39d65d8c6bf7cf35c36d78182aa3e9ddf1d0f8686aeb1e7fdbd9446aa6fdc"},"schema_version":"1.0","source":{"id":"1808.03467","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.03467","created_at":"2026-05-18T00:01:58Z"},{"alias_kind":"arxiv_version","alias_value":"1808.03467v1","created_at":"2026-05-18T00:01:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03467","created_at":"2026-05-18T00:01:58Z"},{"alias_kind":"pith_short_12","alias_value":"IMQEQUIX3HYJ","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IMQEQUIX3HYJN6RI","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IMQEQUIX","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:6ffc6b32852c284ceec3ba5821b4e857111b7f0ad4d1d6e10b38c9d0901522f0","target":"graph","created_at":"2026-05-18T00:01:58Z","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":"Context: At the end of their lives AGB stars are prolific producers of dust and gas. The details of this mass-loss process are still not understood very well. Herschel PACS and SPIRE spectra offer a unique way of investigating properties of AGB stars in general and the mass-loss process in particular. Methods: The HIPE software with the latest calibration is used to process the available PACS and SPIRE spectra of 40 evolved stars. The spectra are convolved with the response curves of the PACS and SPIRE bolometers and compared to the fluxes measured in imaging data of these sources. Custom soft","authors_text":"Dries Nicolaes, L. Decin, M.A.T. Groenewegen, P. Royer, R. Lombaert, T. Danilovich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-10T09:37:57Z","title":"PACS and SPIRE range spectroscopy of cool, evolved stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03467","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":"sha256:938e11ee3e5f7b622e37c259a0fb33457ec19fcca5e0a05ceafa1775d9a80ae9","target":"record","created_at":"2026-05-18T00:01:58Z","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":"4c048ed49570ba225bc97b9758656d7d4218e4ab5b893ad5d4aa4e7ba8eb6e9e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-10T09:37:57Z","title_canon_sha256":"82c39d65d8c6bf7cf35c36d78182aa3e9ddf1d0f8686aeb1e7fdbd9446aa6fdc"},"schema_version":"1.0","source":{"id":"1808.03467","kind":"arxiv","version":1}},"canonical_sha256":"4320485117d9f096fa2826955b1b8e474f294123f3259e6fa2aad14f3b38f0cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4320485117d9f096fa2826955b1b8e474f294123f3259e6fa2aad14f3b38f0cd","first_computed_at":"2026-05-18T00:01:58.218771Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:58.218771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2JnDipUJTFWaOgdlMjIH+jpu5RUY4HNZ8x/94VYGVcgu3vjGfJBYkAg6M08MNvR41kqggHc9091Dxtdc1bPqBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:58.219419Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.03467","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:938e11ee3e5f7b622e37c259a0fb33457ec19fcca5e0a05ceafa1775d9a80ae9","sha256:6ffc6b32852c284ceec3ba5821b4e857111b7f0ad4d1d6e10b38c9d0901522f0"],"state_sha256":"9a1d822745b4bdd57ff10a95029b39e077107a5c7be5bec74267053e0727ccff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/dyjUdlxjUvUQrqOoctmBpGMkJeold9cPSC0q1tbDWOkniLmXXzNBL9rMwSQfg83hVJDiUaB7zo3kCaXcsChDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T17:44:12.287417Z","bundle_sha256":"efc723a8921731f262939ccc8bf570e9f7816ba16b3ddec1e9682332c8422361"}}