{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1995:WSMPMVYT2ZBYC6TNAF22N6XUJP","short_pith_number":"pith:WSMPMVYT","canonical_record":{"source":{"id":"astro-ph/9508042","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1995-08-09T12:50:18Z","cross_cats_sorted":[],"title_canon_sha256":"23d86fdd4ba73100f31412c0ba6ba26f719de1e6c5fd17a8bbf1763aa56a331c","abstract_canon_sha256":"34264d5c42dbef340d5f9757c609a117041146df2692a3dabc16fbb9c2752e27"},"schema_version":"1.0"},"canonical_sha256":"b498f65713d643817a6d0175a6faf44bf5d0b97b48caabdb39cf9251bc9a82d0","source":{"kind":"arxiv","id":"astro-ph/9508042","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9508042","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9508042v1","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9508042","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"pith_short_12","alias_value":"WSMPMVYT2ZBY","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"pith_short_16","alias_value":"WSMPMVYT2ZBYC6TN","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"pith_short_8","alias_value":"WSMPMVYT","created_at":"2026-07-04T14:14:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1995:WSMPMVYT2ZBYC6TNAF22N6XUJP","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9508042","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1995-08-09T12:50:18Z","cross_cats_sorted":[],"title_canon_sha256":"23d86fdd4ba73100f31412c0ba6ba26f719de1e6c5fd17a8bbf1763aa56a331c","abstract_canon_sha256":"34264d5c42dbef340d5f9757c609a117041146df2692a3dabc16fbb9c2752e27"},"schema_version":"1.0"},"canonical_sha256":"b498f65713d643817a6d0175a6faf44bf5d0b97b48caabdb39cf9251bc9a82d0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:14:35.876836Z","signature_b64":"rVd0jq1okTDBig4rIw3QUfQA7iwXPyBDHw3uzLWTV350n5XjnK/j2TsX4wwPOv7C6z7N1lxB24fQ5iIH7NhnBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b498f65713d643817a6d0175a6faf44bf5d0b97b48caabdb39cf9251bc9a82d0","last_reissued_at":"2026-07-04T14:14:35.876447Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:14:35.876447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9508042","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":"2026-07-04T14:14:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jj3IXKyV3zvQFKXh9SmYTtCJnERzVgJ0Zaqzt2lb5mkpGFZXnCTwN4KlpkLSl69qXD4Vd0BCXk1nasKZQOUmBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T21:42:50.040962Z"},"content_sha256":"dd83ff03ca6cf7e142738e7666540ea3adf6f0c63de00ab7dfd6ef8bf462c57a","schema_version":"1.0","event_id":"sha256:dd83ff03ca6cf7e142738e7666540ea3adf6f0c63de00ab7dfd6ef8bf462c57a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1995:WSMPMVYT2ZBYC6TNAF22N6XUJP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Deficit of Distant Galaxy Clusters in the RIXOS X-ray Survey","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Aragon-Salamanca, F.J. Carrera, F.J. Castander, G. Hasinger, H.J. Lehto, I. Perez-Fournon, J.P.D. Mittaz, K.O. Mason, R.G. Bower, R.G. McMahon, R.S. Ellis","submitted_at":"1995-08-09T12:50:18Z","abstract_excerpt":"Clusters of galaxies are the largest gravitationally bound systems and therefore provide an important way of studying the formation and evolution of the large scale structure of the Universe. Cluster evolution can be inferred from observations of the X-ray emission of the gas in distant clusters, but interpreting these data is not straightforward. In a simplified view, clusters grow from perturbations in the matter distribution: their intracluster gas is compressed and shock-heated by the gravitational collapse$^{1}$. The resulting X-ray emission is determined by the hydrostatic equilibrium of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9508042","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/9508042/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":"2026-07-04T14:14:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kjih6yOFTMxJxjF5nJw8NmbgEC7pcdePBVvecujH5xg28VoQXpMm6s1cwFPvjRVudEOGfn5wNYIe7vFa5AB3Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T21:42:50.041335Z"},"content_sha256":"84bcc218f03737ce5fd3f0c7410432f06c4e7de70662a4b38355d19b9b559629","schema_version":"1.0","event_id":"sha256:84bcc218f03737ce5fd3f0c7410432f06c4e7de70662a4b38355d19b9b559629"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WSMPMVYT2ZBYC6TNAF22N6XUJP/bundle.json","state_url":"https://pith.science/pith/WSMPMVYT2ZBYC6TNAF22N6XUJP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WSMPMVYT2ZBYC6TNAF22N6XUJP/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":"2026-07-04T21:42:50Z","links":{"resolver":"https://pith.science/pith/WSMPMVYT2ZBYC6TNAF22N6XUJP","bundle":"https://pith.science/pith/WSMPMVYT2ZBYC6TNAF22N6XUJP/bundle.json","state":"https://pith.science/pith/WSMPMVYT2ZBYC6TNAF22N6XUJP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WSMPMVYT2ZBYC6TNAF22N6XUJP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:WSMPMVYT2ZBYC6TNAF22N6XUJP","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":"34264d5c42dbef340d5f9757c609a117041146df2692a3dabc16fbb9c2752e27","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1995-08-09T12:50:18Z","title_canon_sha256":"23d86fdd4ba73100f31412c0ba6ba26f719de1e6c5fd17a8bbf1763aa56a331c"},"schema_version":"1.0","source":{"id":"astro-ph/9508042","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9508042","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9508042v1","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9508042","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"pith_short_12","alias_value":"WSMPMVYT2ZBY","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"pith_short_16","alias_value":"WSMPMVYT2ZBYC6TN","created_at":"2026-07-04T14:14:35Z"},{"alias_kind":"pith_short_8","alias_value":"WSMPMVYT","created_at":"2026-07-04T14:14:35Z"}],"graph_snapshots":[{"event_id":"sha256:84bcc218f03737ce5fd3f0c7410432f06c4e7de70662a4b38355d19b9b559629","target":"graph","created_at":"2026-07-04T14:14:35Z","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/9508042/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Clusters of galaxies are the largest gravitationally bound systems and therefore provide an important way of studying the formation and evolution of the large scale structure of the Universe. Cluster evolution can be inferred from observations of the X-ray emission of the gas in distant clusters, but interpreting these data is not straightforward. In a simplified view, clusters grow from perturbations in the matter distribution: their intracluster gas is compressed and shock-heated by the gravitational collapse$^{1}$. The resulting X-ray emission is determined by the hydrostatic equilibrium of","authors_text":"A. Aragon-Salamanca, F.J. Carrera, F.J. Castander, G. Hasinger, H.J. Lehto, I. Perez-Fournon, J.P.D. Mittaz, K.O. Mason, R.G. Bower, R.G. McMahon, R.S. Ellis","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1995-08-09T12:50:18Z","title":"The Deficit of Distant Galaxy Clusters in the RIXOS X-ray Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9508042","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:dd83ff03ca6cf7e142738e7666540ea3adf6f0c63de00ab7dfd6ef8bf462c57a","target":"record","created_at":"2026-07-04T14:14:35Z","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":"34264d5c42dbef340d5f9757c609a117041146df2692a3dabc16fbb9c2752e27","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1995-08-09T12:50:18Z","title_canon_sha256":"23d86fdd4ba73100f31412c0ba6ba26f719de1e6c5fd17a8bbf1763aa56a331c"},"schema_version":"1.0","source":{"id":"astro-ph/9508042","kind":"arxiv","version":1}},"canonical_sha256":"b498f65713d643817a6d0175a6faf44bf5d0b97b48caabdb39cf9251bc9a82d0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b498f65713d643817a6d0175a6faf44bf5d0b97b48caabdb39cf9251bc9a82d0","first_computed_at":"2026-07-04T14:14:35.876447Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:14:35.876447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rVd0jq1okTDBig4rIw3QUfQA7iwXPyBDHw3uzLWTV350n5XjnK/j2TsX4wwPOv7C6z7N1lxB24fQ5iIH7NhnBA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:14:35.876836Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9508042","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd83ff03ca6cf7e142738e7666540ea3adf6f0c63de00ab7dfd6ef8bf462c57a","sha256:84bcc218f03737ce5fd3f0c7410432f06c4e7de70662a4b38355d19b9b559629"],"state_sha256":"74bb605502e3053731d92eee06863212677297f3b686c40e5c4450d87eeb6f85"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cy0/r2ltc3HC3DffFsYQG0TQocjlvNtFMuJ8gqKlpllgK+Z03HRXWHcMmyyIO/XrVDGY+7CcxgCi1ZXLUxVjAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T21:42:50.043190Z","bundle_sha256":"d53583c029fbe3fa99d98d28423f5800c58721ed71ba40dc3a2453f3f91f09a6"}}