{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:XHAYEZANSKRTROKXZ2LKKA3XM6","short_pith_number":"pith:XHAYEZAN","canonical_record":{"source":{"id":"0806.2488","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-16T03:10:55Z","cross_cats_sorted":[],"title_canon_sha256":"5fdd54a83605c7e06efd2aca4c1368ed56a909c40539d2c2d4c3928e16997799","abstract_canon_sha256":"6fd606a4e956bed7c7f354b5afdf2face35bddbd812c70a58d18f24b886ef3dd"},"schema_version":"1.0"},"canonical_sha256":"b9c182640d92a338b957ce96a50377679d846b13e056eba44b1b47b254417c46","source":{"kind":"arxiv","id":"0806.2488","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.2488","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"arxiv_version","alias_value":"0806.2488v1","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.2488","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"pith_short_12","alias_value":"XHAYEZANSKRT","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"pith_short_16","alias_value":"XHAYEZANSKRTROKX","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"pith_short_8","alias_value":"XHAYEZAN","created_at":"2026-07-04T17:11:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:XHAYEZANSKRTROKXZ2LKKA3XM6","target":"record","payload":{"canonical_record":{"source":{"id":"0806.2488","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-16T03:10:55Z","cross_cats_sorted":[],"title_canon_sha256":"5fdd54a83605c7e06efd2aca4c1368ed56a909c40539d2c2d4c3928e16997799","abstract_canon_sha256":"6fd606a4e956bed7c7f354b5afdf2face35bddbd812c70a58d18f24b886ef3dd"},"schema_version":"1.0"},"canonical_sha256":"b9c182640d92a338b957ce96a50377679d846b13e056eba44b1b47b254417c46","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:11:17.371166Z","signature_b64":"fM8XCqsEqSN8VIbuvx+j6Fr4Pjef9+uhRoBTXfSr0S3EDBDpPsIReo4TroRZrXmO9XvIka9I5qvQVXhQuWvsCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9c182640d92a338b957ce96a50377679d846b13e056eba44b1b47b254417c46","last_reissued_at":"2026-07-04T17:11:17.370788Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:11:17.370788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0806.2488","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":"2026-07-04T17:11:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y1iha6lPpPoKALmw1VhB/fZJop4WHVSixE4R0dKIIJ/CwiI5fVbNuIIy4CfUjx5of/FBjxrZSCvFwIPvlIn5CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:18:49.894739Z"},"content_sha256":"85e23ff3b35603c1dde1e38db3ea55c19f2f1b39c7540cceddadb351b9133281","schema_version":"1.0","event_id":"sha256:85e23ff3b35603c1dde1e38db3ea55c19f2f1b39c7540cceddadb351b9133281"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:XHAYEZANSKRTROKXZ2LKKA3XM6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spitzer IRAC and MIPS Imaging of Clusters and Outflows in 9 High-mass Star Forming Regions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. G. De Pree, Debra S. Shepherd, Henrik Beuther, Keping Qiu, L. Testi, Qizhou Zhang, Robert A. Gutermuth, S. Thomas Megeath, T. K. Sridharan","submitted_at":"2008-06-16T03:10:55Z","abstract_excerpt":"We present Spitzer Space Telescope IRAC and MIPS observations toward a sample of nine high-mass star forming regions at a distance of around 2 kpc. Based on IRAC and MIPS 24 $\\mu$m photometric results and 2MASS JHKs data, we carry out a census of young stellar objects (YSOs) in a 5' by 5' field toward each region. Toward seven out of the nine regions, we detect parsec sized clusters with around 20 YSOs surrounded by a more extended and sparse distribution of young stars and protostars. For the other two regions, IRAS 20126+4104 and IRAS 22172+5549, the former has the lowest number of YSOs in t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.2488","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/0806.2488/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":"2026-07-04T17:11:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RXoI72nRjAbp+MpMXcnXcfxtC4YEJJxWt0ltCTxcCtpMuySr+QtJM0q1kmg3i/BcZRtGgyk0PyUUrgsAR5eQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:18:49.895229Z"},"content_sha256":"2ec0ce79879ce5b50c02ddca034b74b35eba4f03e066e51c695ec3e2a3ed3626","schema_version":"1.0","event_id":"sha256:2ec0ce79879ce5b50c02ddca034b74b35eba4f03e066e51c695ec3e2a3ed3626"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XHAYEZANSKRTROKXZ2LKKA3XM6/bundle.json","state_url":"https://pith.science/pith/XHAYEZANSKRTROKXZ2LKKA3XM6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XHAYEZANSKRTROKXZ2LKKA3XM6/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":"2026-08-05T06:18:49Z","links":{"resolver":"https://pith.science/pith/XHAYEZANSKRTROKXZ2LKKA3XM6","bundle":"https://pith.science/pith/XHAYEZANSKRTROKXZ2LKKA3XM6/bundle.json","state":"https://pith.science/pith/XHAYEZANSKRTROKXZ2LKKA3XM6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XHAYEZANSKRTROKXZ2LKKA3XM6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:XHAYEZANSKRTROKXZ2LKKA3XM6","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":"6fd606a4e956bed7c7f354b5afdf2face35bddbd812c70a58d18f24b886ef3dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-16T03:10:55Z","title_canon_sha256":"5fdd54a83605c7e06efd2aca4c1368ed56a909c40539d2c2d4c3928e16997799"},"schema_version":"1.0","source":{"id":"0806.2488","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.2488","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"arxiv_version","alias_value":"0806.2488v1","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.2488","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"pith_short_12","alias_value":"XHAYEZANSKRT","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"pith_short_16","alias_value":"XHAYEZANSKRTROKX","created_at":"2026-07-04T17:11:17Z"},{"alias_kind":"pith_short_8","alias_value":"XHAYEZAN","created_at":"2026-07-04T17:11:17Z"}],"graph_snapshots":[{"event_id":"sha256:2ec0ce79879ce5b50c02ddca034b74b35eba4f03e066e51c695ec3e2a3ed3626","target":"graph","created_at":"2026-07-04T17:11:17Z","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/0806.2488/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present Spitzer Space Telescope IRAC and MIPS observations toward a sample of nine high-mass star forming regions at a distance of around 2 kpc. Based on IRAC and MIPS 24 $\\mu$m photometric results and 2MASS JHKs data, we carry out a census of young stellar objects (YSOs) in a 5' by 5' field toward each region. Toward seven out of the nine regions, we detect parsec sized clusters with around 20 YSOs surrounded by a more extended and sparse distribution of young stars and protostars. For the other two regions, IRAS 20126+4104 and IRAS 22172+5549, the former has the lowest number of YSOs in t","authors_text":"C. G. De Pree, Debra S. Shepherd, Henrik Beuther, Keping Qiu, L. Testi, Qizhou Zhang, Robert A. Gutermuth, S. Thomas Megeath, T. K. Sridharan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-16T03:10:55Z","title":"Spitzer IRAC and MIPS Imaging of Clusters and Outflows in 9 High-mass Star Forming Regions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.2488","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":"sha256:85e23ff3b35603c1dde1e38db3ea55c19f2f1b39c7540cceddadb351b9133281","target":"record","created_at":"2026-07-04T17:11:17Z","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":"6fd606a4e956bed7c7f354b5afdf2face35bddbd812c70a58d18f24b886ef3dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-16T03:10:55Z","title_canon_sha256":"5fdd54a83605c7e06efd2aca4c1368ed56a909c40539d2c2d4c3928e16997799"},"schema_version":"1.0","source":{"id":"0806.2488","kind":"arxiv","version":1}},"canonical_sha256":"b9c182640d92a338b957ce96a50377679d846b13e056eba44b1b47b254417c46","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9c182640d92a338b957ce96a50377679d846b13e056eba44b1b47b254417c46","first_computed_at":"2026-07-04T17:11:17.370788Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:11:17.370788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fM8XCqsEqSN8VIbuvx+j6Fr4Pjef9+uhRoBTXfSr0S3EDBDpPsIReo4TroRZrXmO9XvIka9I5qvQVXhQuWvsCg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:11:17.371166Z","signed_message":"canonical_sha256_bytes"},"source_id":"0806.2488","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85e23ff3b35603c1dde1e38db3ea55c19f2f1b39c7540cceddadb351b9133281","sha256:2ec0ce79879ce5b50c02ddca034b74b35eba4f03e066e51c695ec3e2a3ed3626"],"state_sha256":"b4d65a7ec38d6848809b4070755a2833aed41326d78017ebb6e88e8d38a1b74d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VnhCywf9wkyle2gcKVltVKPuMlRykSkOmyPNM8RuqKQ1RvMpMRZmu0i3sUvQqvsHbeePhkNkQFzX9PvyNuv/CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T06:18:49.899150Z","bundle_sha256":"fa479a9f5936a04416b8133bdcb91aacf769f124cb94ef14afcee04d77b2c7c7"}}