{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:ATS5WFC6ZGVJ5T3QJSV3VHDP2P","short_pith_number":"pith:ATS5WFC6","canonical_record":{"source":{"id":"1109.2506","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-12T15:35:26Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"a4a222d01d8c581fb08a084154623492207e4c93279baf676253507a13d9318f","abstract_canon_sha256":"ecdd1310f659645eda60987bab0f1e1312fa3e51f34aead4a58465f516a16911"},"schema_version":"1.0"},"canonical_sha256":"04e5db145ec9aa9ecf704cabba9c6fd3fb3aa4a0986626b0cce61fd58673bfdd","source":{"kind":"arxiv","id":"1109.2506","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.2506","created_at":"2026-05-18T02:00:34Z"},{"alias_kind":"arxiv_version","alias_value":"1109.2506v1","created_at":"2026-05-18T02:00:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.2506","created_at":"2026-05-18T02:00:34Z"},{"alias_kind":"pith_short_12","alias_value":"ATS5WFC6ZGVJ","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"ATS5WFC6ZGVJ5T3Q","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"ATS5WFC6","created_at":"2026-05-18T12:26:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:ATS5WFC6ZGVJ5T3QJSV3VHDP2P","target":"record","payload":{"canonical_record":{"source":{"id":"1109.2506","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-12T15:35:26Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"a4a222d01d8c581fb08a084154623492207e4c93279baf676253507a13d9318f","abstract_canon_sha256":"ecdd1310f659645eda60987bab0f1e1312fa3e51f34aead4a58465f516a16911"},"schema_version":"1.0"},"canonical_sha256":"04e5db145ec9aa9ecf704cabba9c6fd3fb3aa4a0986626b0cce61fd58673bfdd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:34.337662Z","signature_b64":"vCjFvFCT1+O7LfhOPATx8jBVOwDLdm/xoIs0QMPF4v/O6/jdTJwr6tiiv/cYAWW+W3hLaRggSJwRKETQhlZjAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04e5db145ec9aa9ecf704cabba9c6fd3fb3aa4a0986626b0cce61fd58673bfdd","last_reissued_at":"2026-05-18T02:00:34.337050Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:34.337050Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.2506","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":"2026-05-18T02:00:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kb3+Phosn5tWvPW4/TTFcPoVrZ2vO3n2pN87G5Hlg7yEnw5Tfkb0bLoUkztBTiPqX0+tlrH+Psizh2/CGGkzAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T02:21:05.883402Z"},"content_sha256":"5316c39bbf60ff6038c62c0d67eb787dbec8aaf2832b25a480b7d768ad5cde32","schema_version":"1.0","event_id":"sha256:5316c39bbf60ff6038c62c0d67eb787dbec8aaf2832b25a480b7d768ad5cde32"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:ATS5WFC6ZGVJ5T3QJSV3VHDP2P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Narrow absorption features in the co-added XMM-Newton RGS spectra of isolated Neutron Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Cor P. de Vries, Frank Haberl, Jacco Vink, Markus M. Hohle, Ralph Neuh\\\"auser","submitted_at":"2011-09-12T15:35:26Z","abstract_excerpt":"We co-added the available XMM-Newton RGS spectra for each of the isolated X-ray pulsars RX\\,J0720.4$-$3125, RX\\,J1308.6+2127 (RBS\\,1223), RX\\,J1605.3+3249 and RX\\,J1856.4$-$3754 (four members of the \"Magnificent Seven\") and the \"Three Musketeers\" Geminga, PSR\\,B0656+14 and PSR\\,B1055-52. We confirm the detection of a narrow absorption feature at 0.57 keV in the co-added RGS spectra of RX\\,J0720.4$-$3125 and RX\\,J1605.3+3249 (including most recent observations). In addition we found similar absorption features in the spectra of RX\\,J1308.6+2127 (at 0.53 keV) and maybe PSR\\,B1055-52 (at 0.56 keV"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.2506","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":"2026-05-18T02:00:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T+l1yqRhcGRloClmDTVkmAW3RoUTq+ta+jWeq8+AyCKSQrBzPKijvA6DVwL8WoNtx4HGcjV8whjxyVA1E83cDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T02:21:05.884077Z"},"content_sha256":"a527727ff403327343a1bb8e704cc2f7b83ea7901a3d390777f340f438cef0a7","schema_version":"1.0","event_id":"sha256:a527727ff403327343a1bb8e704cc2f7b83ea7901a3d390777f340f438cef0a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ATS5WFC6ZGVJ5T3QJSV3VHDP2P/bundle.json","state_url":"https://pith.science/pith/ATS5WFC6ZGVJ5T3QJSV3VHDP2P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ATS5WFC6ZGVJ5T3QJSV3VHDP2P/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":"2026-06-11T02:21:05Z","links":{"resolver":"https://pith.science/pith/ATS5WFC6ZGVJ5T3QJSV3VHDP2P","bundle":"https://pith.science/pith/ATS5WFC6ZGVJ5T3QJSV3VHDP2P/bundle.json","state":"https://pith.science/pith/ATS5WFC6ZGVJ5T3QJSV3VHDP2P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ATS5WFC6ZGVJ5T3QJSV3VHDP2P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ATS5WFC6ZGVJ5T3QJSV3VHDP2P","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":"ecdd1310f659645eda60987bab0f1e1312fa3e51f34aead4a58465f516a16911","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-12T15:35:26Z","title_canon_sha256":"a4a222d01d8c581fb08a084154623492207e4c93279baf676253507a13d9318f"},"schema_version":"1.0","source":{"id":"1109.2506","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.2506","created_at":"2026-05-18T02:00:34Z"},{"alias_kind":"arxiv_version","alias_value":"1109.2506v1","created_at":"2026-05-18T02:00:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.2506","created_at":"2026-05-18T02:00:34Z"},{"alias_kind":"pith_short_12","alias_value":"ATS5WFC6ZGVJ","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"ATS5WFC6ZGVJ5T3Q","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"ATS5WFC6","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:a527727ff403327343a1bb8e704cc2f7b83ea7901a3d390777f340f438cef0a7","target":"graph","created_at":"2026-05-18T02:00:34Z","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 co-added the available XMM-Newton RGS spectra for each of the isolated X-ray pulsars RX\\,J0720.4$-$3125, RX\\,J1308.6+2127 (RBS\\,1223), RX\\,J1605.3+3249 and RX\\,J1856.4$-$3754 (four members of the \"Magnificent Seven\") and the \"Three Musketeers\" Geminga, PSR\\,B0656+14 and PSR\\,B1055-52. We confirm the detection of a narrow absorption feature at 0.57 keV in the co-added RGS spectra of RX\\,J0720.4$-$3125 and RX\\,J1605.3+3249 (including most recent observations). In addition we found similar absorption features in the spectra of RX\\,J1308.6+2127 (at 0.53 keV) and maybe PSR\\,B1055-52 (at 0.56 keV","authors_text":"Cor P. de Vries, Frank Haberl, Jacco Vink, Markus M. Hohle, Ralph Neuh\\\"auser","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-12T15:35:26Z","title":"Narrow absorption features in the co-added XMM-Newton RGS spectra of isolated Neutron Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.2506","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":"sha256:5316c39bbf60ff6038c62c0d67eb787dbec8aaf2832b25a480b7d768ad5cde32","target":"record","created_at":"2026-05-18T02:00:34Z","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":"ecdd1310f659645eda60987bab0f1e1312fa3e51f34aead4a58465f516a16911","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-09-12T15:35:26Z","title_canon_sha256":"a4a222d01d8c581fb08a084154623492207e4c93279baf676253507a13d9318f"},"schema_version":"1.0","source":{"id":"1109.2506","kind":"arxiv","version":1}},"canonical_sha256":"04e5db145ec9aa9ecf704cabba9c6fd3fb3aa4a0986626b0cce61fd58673bfdd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04e5db145ec9aa9ecf704cabba9c6fd3fb3aa4a0986626b0cce61fd58673bfdd","first_computed_at":"2026-05-18T02:00:34.337050Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:34.337050Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vCjFvFCT1+O7LfhOPATx8jBVOwDLdm/xoIs0QMPF4v/O6/jdTJwr6tiiv/cYAWW+W3hLaRggSJwRKETQhlZjAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:34.337662Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.2506","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5316c39bbf60ff6038c62c0d67eb787dbec8aaf2832b25a480b7d768ad5cde32","sha256:a527727ff403327343a1bb8e704cc2f7b83ea7901a3d390777f340f438cef0a7"],"state_sha256":"3698438b4947bb4507a50be0021b716ba5c566f4d9c7638e13aa3415b231caef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SxpIE4LQH3nc576CDi/aoIhDdca45rwo8fjrnfLnj08LxXOU6TWama1I/YFG8ZhyC2mLHosmevhHGwYEeyiwDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T02:21:05.887712Z","bundle_sha256":"8c227bd559d73b7317e09627514d043d145dd6eb742cbe5268832dc69dc6a911"}}