{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:HKNKBPGR4FXR3FUZZ3TGCEAEC5","short_pith_number":"pith:HKNKBPGR","canonical_record":{"source":{"id":"astro-ph/9711353","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-11-28T17:00:35Z","cross_cats_sorted":[],"title_canon_sha256":"a7bbba57268542f9b63b359dc597c55f88c636f1a17267fd41d9c97e658fec49","abstract_canon_sha256":"7496b59add4bd26d1f790eee677fad3931a862e556a6b582a9288665f62930d6"},"schema_version":"1.0"},"canonical_sha256":"3a9aa0bcd1e16f1d9699cee6611004175c5205bd46100f8e89dc888b80cb4b7a","source":{"kind":"arxiv","id":"astro-ph/9711353","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9711353","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9711353v1","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9711353","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"pith_short_12","alias_value":"HKNKBPGR4FXR","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"pith_short_16","alias_value":"HKNKBPGR4FXR3FUZ","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"pith_short_8","alias_value":"HKNKBPGR","created_at":"2026-07-04T14:15:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:HKNKBPGR4FXR3FUZZ3TGCEAEC5","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9711353","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-11-28T17:00:35Z","cross_cats_sorted":[],"title_canon_sha256":"a7bbba57268542f9b63b359dc597c55f88c636f1a17267fd41d9c97e658fec49","abstract_canon_sha256":"7496b59add4bd26d1f790eee677fad3931a862e556a6b582a9288665f62930d6"},"schema_version":"1.0"},"canonical_sha256":"3a9aa0bcd1e16f1d9699cee6611004175c5205bd46100f8e89dc888b80cb4b7a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:15:34.364202Z","signature_b64":"KYEXi+9Gg6H4+fQiZYLsVTsetnhyNjWvM2lrH65Bc+CVC/UsXa1ehXcBbu9Lt6Oe0Gu5NjqjPO1vyNel/9RkDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a9aa0bcd1e16f1d9699cee6611004175c5205bd46100f8e89dc888b80cb4b7a","last_reissued_at":"2026-07-04T14:15:34.363704Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:15:34.363704Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9711353","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":"2026-07-04T14:15:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hlYMrAT6/fS2Sq41bzizqHUFox9JhJgj/fosNeG5jgEV2fB2kGIKV5TLYHOmTAugJYoxZreSlvfU1gmqSyw/Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T23:12:00.787906Z"},"content_sha256":"99dd811e11f52f787bd85f708365438d341ea1ed4ce78d128c86b23cee9d817f","schema_version":"1.0","event_id":"sha256:99dd811e11f52f787bd85f708365438d341ea1ed4ce78d128c86b23cee9d817f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:HKNKBPGR4FXR3FUZZ3TGCEAEC5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ICM masses in nearby and distant clusters of galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Hironobu Matsumoto, Hiroshi Tomida, John P. Hughes, Katsuji Koyama, Makoto Hattori, Takeshi Go Tsuru, Yashushi Fukazawa","submitted_at":"1997-11-28T17:00:35Z","abstract_excerpt":"We compile X-ray data of clusters of galaxies at a wide range of redshift $z=0.0\\sim1.0$ and compare X-ray luminosities, gas masses, iron abundances and iron masses of nearby clusters and those of distant clusters as a function of plasma temperature. All the date presented in this paper have been obtained only with \\ASCA and/or \\ROSAT. No evidence for a change in the \\KT -\\LX\\ relationship or \\KT - iron abundance at $z<0.6$ is found. No significant change in \\KT -\\LX relationship at $z>0.6$ is seen, either. However, the gas masses of very distant clusters at $z\\sim0.8-1.0$ and some clusters ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9711353","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9711353/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T14:15:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z97W6hanke2Ym3tj+XM1zDWDULW0+/1fOKe5isnMr+LYN2skG3/WFnl7rqh0s2D0WIPoazxF9OxpxONRoauNBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T23:12:00.788306Z"},"content_sha256":"21b10eb0b70e5d621667c43f9195a1291de6a1cf3bf29a5269d2829201a5e838","schema_version":"1.0","event_id":"sha256:21b10eb0b70e5d621667c43f9195a1291de6a1cf3bf29a5269d2829201a5e838"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HKNKBPGR4FXR3FUZZ3TGCEAEC5/bundle.json","state_url":"https://pith.science/pith/HKNKBPGR4FXR3FUZZ3TGCEAEC5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HKNKBPGR4FXR3FUZZ3TGCEAEC5/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":"2026-07-04T23:12:00Z","links":{"resolver":"https://pith.science/pith/HKNKBPGR4FXR3FUZZ3TGCEAEC5","bundle":"https://pith.science/pith/HKNKBPGR4FXR3FUZZ3TGCEAEC5/bundle.json","state":"https://pith.science/pith/HKNKBPGR4FXR3FUZZ3TGCEAEC5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HKNKBPGR4FXR3FUZZ3TGCEAEC5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:HKNKBPGR4FXR3FUZZ3TGCEAEC5","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":"7496b59add4bd26d1f790eee677fad3931a862e556a6b582a9288665f62930d6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-11-28T17:00:35Z","title_canon_sha256":"a7bbba57268542f9b63b359dc597c55f88c636f1a17267fd41d9c97e658fec49"},"schema_version":"1.0","source":{"id":"astro-ph/9711353","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9711353","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9711353v1","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9711353","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"pith_short_12","alias_value":"HKNKBPGR4FXR","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"pith_short_16","alias_value":"HKNKBPGR4FXR3FUZ","created_at":"2026-07-04T14:15:34Z"},{"alias_kind":"pith_short_8","alias_value":"HKNKBPGR","created_at":"2026-07-04T14:15:34Z"}],"graph_snapshots":[{"event_id":"sha256:21b10eb0b70e5d621667c43f9195a1291de6a1cf3bf29a5269d2829201a5e838","target":"graph","created_at":"2026-07-04T14:15:34Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/9711353/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We compile X-ray data of clusters of galaxies at a wide range of redshift $z=0.0\\sim1.0$ and compare X-ray luminosities, gas masses, iron abundances and iron masses of nearby clusters and those of distant clusters as a function of plasma temperature. All the date presented in this paper have been obtained only with \\ASCA and/or \\ROSAT. No evidence for a change in the \\KT -\\LX\\ relationship or \\KT - iron abundance at $z<0.6$ is found. No significant change in \\KT -\\LX relationship at $z>0.6$ is seen, either. However, the gas masses of very distant clusters at $z\\sim0.8-1.0$ and some clusters ar","authors_text":"Hironobu Matsumoto, Hiroshi Tomida, John P. Hughes, Katsuji Koyama, Makoto Hattori, Takeshi Go Tsuru, Yashushi Fukazawa","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1997-11-28T17:00:35Z","title":"ICM masses in nearby and distant clusters of galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9711353","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":"sha256:99dd811e11f52f787bd85f708365438d341ea1ed4ce78d128c86b23cee9d817f","target":"record","created_at":"2026-07-04T14:15:34Z","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":"7496b59add4bd26d1f790eee677fad3931a862e556a6b582a9288665f62930d6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-11-28T17:00:35Z","title_canon_sha256":"a7bbba57268542f9b63b359dc597c55f88c636f1a17267fd41d9c97e658fec49"},"schema_version":"1.0","source":{"id":"astro-ph/9711353","kind":"arxiv","version":1}},"canonical_sha256":"3a9aa0bcd1e16f1d9699cee6611004175c5205bd46100f8e89dc888b80cb4b7a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a9aa0bcd1e16f1d9699cee6611004175c5205bd46100f8e89dc888b80cb4b7a","first_computed_at":"2026-07-04T14:15:34.363704Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:15:34.363704Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KYEXi+9Gg6H4+fQiZYLsVTsetnhyNjWvM2lrH65Bc+CVC/UsXa1ehXcBbu9Lt6Oe0Gu5NjqjPO1vyNel/9RkDA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:15:34.364202Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9711353","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:99dd811e11f52f787bd85f708365438d341ea1ed4ce78d128c86b23cee9d817f","sha256:21b10eb0b70e5d621667c43f9195a1291de6a1cf3bf29a5269d2829201a5e838"],"state_sha256":"17cad19fc49df22521c4c8505e4b24de5c02453b5847a94a71a352d1b452c0ca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2kFZafyqRWIwbqm60AgUcA9JrAwC4G5e/KqdVPRmjNyfge4nm/wwYpSKYmusWBH6kY7s3kWvvEqTiPImXgqrDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T23:12:00.790233Z","bundle_sha256":"27d1e61c931cf84bcafe74c93ee37bcc3d278bfde7035bc8504d688fa07cea8e"}}