{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:NZ3DAUP6OITOV7T47GJJNJLPSQ","short_pith_number":"pith:NZ3DAUP6","canonical_record":{"source":{"id":"1602.06955","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-02-22T21:00:12Z","cross_cats_sorted":[],"title_canon_sha256":"2007ac172a2320c9912a4c093e219291da50db640803e3fbeb9fe5d5a38ac5bc","abstract_canon_sha256":"711565b36fcd578ae7ed1601682f487fa9cff85f1f5d5890dfb21b0905e053b4"},"schema_version":"1.0"},"canonical_sha256":"6e763051fe7226eafe7cf99296a56f9435d2276cdec491b14dc23957b7760b05","source":{"kind":"arxiv","id":"1602.06955","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06955","created_at":"2026-05-18T01:18:06Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06955v2","created_at":"2026-05-18T01:18:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06955","created_at":"2026-05-18T01:18:06Z"},{"alias_kind":"pith_short_12","alias_value":"NZ3DAUP6OITO","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"NZ3DAUP6OITOV7T4","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"NZ3DAUP6","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:NZ3DAUP6OITOV7T47GJJNJLPSQ","target":"record","payload":{"canonical_record":{"source":{"id":"1602.06955","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-02-22T21:00:12Z","cross_cats_sorted":[],"title_canon_sha256":"2007ac172a2320c9912a4c093e219291da50db640803e3fbeb9fe5d5a38ac5bc","abstract_canon_sha256":"711565b36fcd578ae7ed1601682f487fa9cff85f1f5d5890dfb21b0905e053b4"},"schema_version":"1.0"},"canonical_sha256":"6e763051fe7226eafe7cf99296a56f9435d2276cdec491b14dc23957b7760b05","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:06.533628Z","signature_b64":"Yzs0mIxehJ/u9wLM91N25TiS7eS1MgwCsqi3/pGtDrGCksz7cy4HrexPJzvGtt52CgapoZZItBdq4GrPrba/Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e763051fe7226eafe7cf99296a56f9435d2276cdec491b14dc23957b7760b05","last_reissued_at":"2026-05-18T01:18:06.532675Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:06.532675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.06955","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":"2026-05-18T01:18:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e3R04mPlbTnaj6bz91Ty6SYs77yW4Bl0HZwdqwhHe04ahcz8l3Hw7CJQzukJJDINiLmYWdqokCcgTrklu8K0BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T18:09:43.940957Z"},"content_sha256":"d25eed75c24f6d0c521f4541a38c68e7263713f0a06275daca2312650363c65e","schema_version":"1.0","event_id":"sha256:d25eed75c24f6d0c521f4541a38c68e7263713f0a06275daca2312650363c65e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:NZ3DAUP6OITOV7T47GJJNJLPSQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Oxygen, neon, and iron X-ray absorption in the local interstellar medium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Claudio Mendoza, Efra\\'in Gatuzz, Javier A. Garc\\'ia, Timothy R. Kallman","submitted_at":"2016-02-22T21:00:12Z","abstract_excerpt":"We present a detailed study of X-ray absorption in the local interstellar medium by analyzing the X-ray spectra of 24 galactic sources obtained with the {\\it Chandra} High Energy Transmission Grating Spectrometer and the {\\it XMM-Newton} Reflection Grating Spectrometer. By modeling the continuum with a simple broken power-law and by implementing the new {\\tt ISMabs} X-ray absorption model, we have estimated the total H, O, Ne, and Fe column densities towards the observed sources. We have determined the absorbing material distribution as a function of source distance and galactic latitude--long"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06955","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":"2026-05-18T01:18:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QXvOjNZbUM56tgD3ZmuqRKStsqjOyVwTwAp6yU2YQMI0UheLU4WdzGVumZl8+tKJp6ORFEQEY61S0Ae/Nxt8CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T18:09:43.941651Z"},"content_sha256":"74af82051c19a2854ac6f029e4dc8bed4d492981b619312eacee5ee2fcaad7aa","schema_version":"1.0","event_id":"sha256:74af82051c19a2854ac6f029e4dc8bed4d492981b619312eacee5ee2fcaad7aa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NZ3DAUP6OITOV7T47GJJNJLPSQ/bundle.json","state_url":"https://pith.science/pith/NZ3DAUP6OITOV7T47GJJNJLPSQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NZ3DAUP6OITOV7T47GJJNJLPSQ/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":"2026-06-09T18:09:43Z","links":{"resolver":"https://pith.science/pith/NZ3DAUP6OITOV7T47GJJNJLPSQ","bundle":"https://pith.science/pith/NZ3DAUP6OITOV7T47GJJNJLPSQ/bundle.json","state":"https://pith.science/pith/NZ3DAUP6OITOV7T47GJJNJLPSQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NZ3DAUP6OITOV7T47GJJNJLPSQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:NZ3DAUP6OITOV7T47GJJNJLPSQ","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":"711565b36fcd578ae7ed1601682f487fa9cff85f1f5d5890dfb21b0905e053b4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-02-22T21:00:12Z","title_canon_sha256":"2007ac172a2320c9912a4c093e219291da50db640803e3fbeb9fe5d5a38ac5bc"},"schema_version":"1.0","source":{"id":"1602.06955","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06955","created_at":"2026-05-18T01:18:06Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06955v2","created_at":"2026-05-18T01:18:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06955","created_at":"2026-05-18T01:18:06Z"},{"alias_kind":"pith_short_12","alias_value":"NZ3DAUP6OITO","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"NZ3DAUP6OITOV7T4","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"NZ3DAUP6","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:74af82051c19a2854ac6f029e4dc8bed4d492981b619312eacee5ee2fcaad7aa","target":"graph","created_at":"2026-05-18T01:18:06Z","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":"We present a detailed study of X-ray absorption in the local interstellar medium by analyzing the X-ray spectra of 24 galactic sources obtained with the {\\it Chandra} High Energy Transmission Grating Spectrometer and the {\\it XMM-Newton} Reflection Grating Spectrometer. By modeling the continuum with a simple broken power-law and by implementing the new {\\tt ISMabs} X-ray absorption model, we have estimated the total H, O, Ne, and Fe column densities towards the observed sources. We have determined the absorbing material distribution as a function of source distance and galactic latitude--long","authors_text":"Claudio Mendoza, Efra\\'in Gatuzz, Javier A. Garc\\'ia, Timothy R. Kallman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-02-22T21:00:12Z","title":"Oxygen, neon, and iron X-ray absorption in the local interstellar medium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06955","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:d25eed75c24f6d0c521f4541a38c68e7263713f0a06275daca2312650363c65e","target":"record","created_at":"2026-05-18T01:18:06Z","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":"711565b36fcd578ae7ed1601682f487fa9cff85f1f5d5890dfb21b0905e053b4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-02-22T21:00:12Z","title_canon_sha256":"2007ac172a2320c9912a4c093e219291da50db640803e3fbeb9fe5d5a38ac5bc"},"schema_version":"1.0","source":{"id":"1602.06955","kind":"arxiv","version":2}},"canonical_sha256":"6e763051fe7226eafe7cf99296a56f9435d2276cdec491b14dc23957b7760b05","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e763051fe7226eafe7cf99296a56f9435d2276cdec491b14dc23957b7760b05","first_computed_at":"2026-05-18T01:18:06.532675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:06.532675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yzs0mIxehJ/u9wLM91N25TiS7eS1MgwCsqi3/pGtDrGCksz7cy4HrexPJzvGtt52CgapoZZItBdq4GrPrba/Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:06.533628Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.06955","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d25eed75c24f6d0c521f4541a38c68e7263713f0a06275daca2312650363c65e","sha256:74af82051c19a2854ac6f029e4dc8bed4d492981b619312eacee5ee2fcaad7aa"],"state_sha256":"4ace39517c5d7f78b3e1f91fd710ac08d19ca23f891a991ad4b74b51c96d76d6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tAxwNJ3/9mxleEmSxa/RK6BSxCg35oSvTJTYxEf2NW+Wr1pdDQG1QhZfEF/FhEiwzDFD9CZVX4k1LIDQk7tSDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T18:09:43.945752Z","bundle_sha256":"4b92000a2ee49d8a0d9e84f89b067d53dace885d556af650286b4e85442e638e"}}