{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:2P6I2JWI6M4WIPS76VXMGCM5UL","short_pith_number":"pith:2P6I2JWI","canonical_record":{"source":{"id":"2103.03039","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-03-04T13:59:04Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"ca17d007224acf69106234622a30b57afe54c93c8d69d168fe054bf57d119272","abstract_canon_sha256":"a409567a23e5627f4a1350c70ba93444c0bb959888e84764820391be64d474f4"},"schema_version":"1.0"},"canonical_sha256":"d3fc8d26c8f339643e5ff56ec3099da2e021fc4dd7b2636ccc3195c8ceca8a78","source":{"kind":"arxiv","id":"2103.03039","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.03039","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"arxiv_version","alias_value":"2103.03039v2","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.03039","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"pith_short_12","alias_value":"2P6I2JWI6M4W","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"pith_short_16","alias_value":"2P6I2JWI6M4WIPS7","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"pith_short_8","alias_value":"2P6I2JWI","created_at":"2026-07-05T02:35:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:2P6I2JWI6M4WIPS76VXMGCM5UL","target":"record","payload":{"canonical_record":{"source":{"id":"2103.03039","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-03-04T13:59:04Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"ca17d007224acf69106234622a30b57afe54c93c8d69d168fe054bf57d119272","abstract_canon_sha256":"a409567a23e5627f4a1350c70ba93444c0bb959888e84764820391be64d474f4"},"schema_version":"1.0"},"canonical_sha256":"d3fc8d26c8f339643e5ff56ec3099da2e021fc4dd7b2636ccc3195c8ceca8a78","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:35:39.774086Z","signature_b64":"JlpGKvwIWuXIQ+fBytdDieNnoCFToL/GDe5Ps+hZ4GYBqAqSO3WMvILoszunlh9172139WX0G+h1ZH3ncMD9AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3fc8d26c8f339643e5ff56ec3099da2e021fc4dd7b2636ccc3195c8ceca8a78","last_reissued_at":"2026-07-05T02:35:39.773702Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:35:39.773702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.03039","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":"2026-07-05T02:35:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D2VTAZ5RekI5W33WtrZl9K9GWp2Op1JkfUKLUtRCw/fT0siwy1ooBTTnR5CLT+7Nt1JlaJw2LRszQpwFPgTIBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T22:07:06.531958Z"},"content_sha256":"606b0dc4afb3abaab7f996b28149cae9f1dd8bbbb1e9ea680ac0d60cfadf5f81","schema_version":"1.0","event_id":"sha256:606b0dc4afb3abaab7f996b28149cae9f1dd8bbbb1e9ea680ac0d60cfadf5f81"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:2P6I2JWI6M4WIPS76VXMGCM5UL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing the models of X-ray driven photoevaporation with accreting stars in the Orion Nebula Cluster","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Barbara Ercolano, Carlo Felice Manara, Stefan Flaischlen, Thomas Preibisch","submitted_at":"2021-03-04T13:59:04Z","abstract_excerpt":"Recent works highlight the importance of stellar X-rays on the evolution of the circumstellar disks of young stellar objects, especially for disk photoevaporation. A signature of this process may be seen in the so far tentatively observed dependence of stellar accretion rates on X-ray luminosities. According to models of X-ray driven photoevaporation, stars with higher X-ray luminosities should show lower accretion rates, on average, in a sample with similar masses and ages. To this aim, we have analyzed X-ray properties of young stars in the Orion Nebula Cluster determined with Chandra during"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.03039","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2103.03039/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":"2026-07-05T02:35:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZAT2gyTjT+OQzGOfP/HNwmQsyhFXAyHDUC3VD34W6jlKkbrw5fwYDjUqYaS7zm4HPVv9xCCM5MFbPJcZ8PnTBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T22:07:06.532391Z"},"content_sha256":"72b837070e38ef47bd82287455853531bdedee23e8e0952cf901fe4aedf5d4cd","schema_version":"1.0","event_id":"sha256:72b837070e38ef47bd82287455853531bdedee23e8e0952cf901fe4aedf5d4cd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2P6I2JWI6M4WIPS76VXMGCM5UL/bundle.json","state_url":"https://pith.science/pith/2P6I2JWI6M4WIPS76VXMGCM5UL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2P6I2JWI6M4WIPS76VXMGCM5UL/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":"2026-07-08T22:07:06Z","links":{"resolver":"https://pith.science/pith/2P6I2JWI6M4WIPS76VXMGCM5UL","bundle":"https://pith.science/pith/2P6I2JWI6M4WIPS76VXMGCM5UL/bundle.json","state":"https://pith.science/pith/2P6I2JWI6M4WIPS76VXMGCM5UL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2P6I2JWI6M4WIPS76VXMGCM5UL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:2P6I2JWI6M4WIPS76VXMGCM5UL","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":"a409567a23e5627f4a1350c70ba93444c0bb959888e84764820391be64d474f4","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-03-04T13:59:04Z","title_canon_sha256":"ca17d007224acf69106234622a30b57afe54c93c8d69d168fe054bf57d119272"},"schema_version":"1.0","source":{"id":"2103.03039","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.03039","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"arxiv_version","alias_value":"2103.03039v2","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.03039","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"pith_short_12","alias_value":"2P6I2JWI6M4W","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"pith_short_16","alias_value":"2P6I2JWI6M4WIPS7","created_at":"2026-07-05T02:35:39Z"},{"alias_kind":"pith_short_8","alias_value":"2P6I2JWI","created_at":"2026-07-05T02:35:39Z"}],"graph_snapshots":[{"event_id":"sha256:72b837070e38ef47bd82287455853531bdedee23e8e0952cf901fe4aedf5d4cd","target":"graph","created_at":"2026-07-05T02:35:39Z","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/2103.03039/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent works highlight the importance of stellar X-rays on the evolution of the circumstellar disks of young stellar objects, especially for disk photoevaporation. A signature of this process may be seen in the so far tentatively observed dependence of stellar accretion rates on X-ray luminosities. According to models of X-ray driven photoevaporation, stars with higher X-ray luminosities should show lower accretion rates, on average, in a sample with similar masses and ages. To this aim, we have analyzed X-ray properties of young stars in the Orion Nebula Cluster determined with Chandra during","authors_text":"Barbara Ercolano, Carlo Felice Manara, Stefan Flaischlen, Thomas Preibisch","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-03-04T13:59:04Z","title":"Testing the models of X-ray driven photoevaporation with accreting stars in the Orion Nebula Cluster"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.03039","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":"sha256:606b0dc4afb3abaab7f996b28149cae9f1dd8bbbb1e9ea680ac0d60cfadf5f81","target":"record","created_at":"2026-07-05T02:35:39Z","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":"a409567a23e5627f4a1350c70ba93444c0bb959888e84764820391be64d474f4","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-03-04T13:59:04Z","title_canon_sha256":"ca17d007224acf69106234622a30b57afe54c93c8d69d168fe054bf57d119272"},"schema_version":"1.0","source":{"id":"2103.03039","kind":"arxiv","version":2}},"canonical_sha256":"d3fc8d26c8f339643e5ff56ec3099da2e021fc4dd7b2636ccc3195c8ceca8a78","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3fc8d26c8f339643e5ff56ec3099da2e021fc4dd7b2636ccc3195c8ceca8a78","first_computed_at":"2026-07-05T02:35:39.773702Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:35:39.773702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JlpGKvwIWuXIQ+fBytdDieNnoCFToL/GDe5Ps+hZ4GYBqAqSO3WMvILoszunlh9172139WX0G+h1ZH3ncMD9AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:35:39.774086Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.03039","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:606b0dc4afb3abaab7f996b28149cae9f1dd8bbbb1e9ea680ac0d60cfadf5f81","sha256:72b837070e38ef47bd82287455853531bdedee23e8e0952cf901fe4aedf5d4cd"],"state_sha256":"aa840c12c0a332a9b068c1095d9112448e505158efcc59773d79ba25dfcf03a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K/5sBmh2CZuZTKAcpE2UrxvqvmfK88hHsZhvdbhgDxxukkeuFkjiPYpKmw0wUnuFv9KZKfz+Rarer1KETuuGAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T22:07:06.534887Z","bundle_sha256":"8fb9adfebddb5183e29a61729c0e637ce32e0690118da07d2be39928182d1030"}}