{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:YBT6KFIBJSRWGDVWZHV4D2JVXK","short_pith_number":"pith:YBT6KFIB","canonical_record":{"source":{"id":"1510.06286","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-21T15:00:21Z","cross_cats_sorted":[],"title_canon_sha256":"88525728388616170122cf7857b6a71b879360c8cb2d8667130b363bde088b81","abstract_canon_sha256":"39df2e57727f0c1d818b16af1794939cf911fb59f5141b80e5711e0366e0a674"},"schema_version":"1.0"},"canonical_sha256":"c067e515014ca3630eb6c9ebc1e935bab15fbf2b2efb740a119270bd1ac500d6","source":{"kind":"arxiv","id":"1510.06286","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.06286","created_at":"2026-05-18T01:20:33Z"},{"alias_kind":"arxiv_version","alias_value":"1510.06286v2","created_at":"2026-05-18T01:20:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.06286","created_at":"2026-05-18T01:20:33Z"},{"alias_kind":"pith_short_12","alias_value":"YBT6KFIBJSRW","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YBT6KFIBJSRWGDVW","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YBT6KFIB","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:YBT6KFIBJSRWGDVWZHV4D2JVXK","target":"record","payload":{"canonical_record":{"source":{"id":"1510.06286","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-21T15:00:21Z","cross_cats_sorted":[],"title_canon_sha256":"88525728388616170122cf7857b6a71b879360c8cb2d8667130b363bde088b81","abstract_canon_sha256":"39df2e57727f0c1d818b16af1794939cf911fb59f5141b80e5711e0366e0a674"},"schema_version":"1.0"},"canonical_sha256":"c067e515014ca3630eb6c9ebc1e935bab15fbf2b2efb740a119270bd1ac500d6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:33.623641Z","signature_b64":"hESUMLmBUUsgDspronpXXNoNX3hdgsRi9jcQzWTJnApol+fKznljoFjiYflWVbCkt8bG6aBn0wyXeRnkoXXYCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c067e515014ca3630eb6c9ebc1e935bab15fbf2b2efb740a119270bd1ac500d6","last_reissued_at":"2026-05-18T01:20:33.623110Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:33.623110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.06286","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":"2026-05-18T01:20:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TSgQy1T0RkH398gjAUitGSMEL1+QmkHl/YwlcAmLxGrtEnRohSVG1r/PMkSoKXRJ+mNBCQb5gXarTNrY6FM/DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:08:14.573462Z"},"content_sha256":"75894182c2b5dab30e6f3267e9845e55f92aa2cdf0ea6150e436790e51c94da4","schema_version":"1.0","event_id":"sha256:75894182c2b5dab30e6f3267e9845e55f92aa2cdf0ea6150e436790e51c94da4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:YBT6KFIBJSRWGDVWZHV4D2JVXK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Results from DROXO IV. EXTraS discovery of an X-ray flare from the Class I protostar candidate ISO-Oph 85","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Andrea Belfiore, Andrea De Luca, Andrea Tiengo, Beate Stelzer, Daniele D'Agostino, Daniele Pizzocaro, David Salvetti, Frank Haberl, Giacomo Vianello, Gianni Lisini, Giovanni Novara, Ignazio Pillitteri, Joern Wilms, Martino Marelli, Mike Watson, Roberta Paladini, Ruben Salvaterra, Salvatore Sciortino","submitted_at":"2015-10-21T15:00:21Z","abstract_excerpt":"X-ray emission from Young Stellar Objects (YSOs) is crucial to understand star formation. A very limited amount of X-ray results is available for the protostellar (ClassI) phase. A systematic search of transient X-ray phenomena combined with a careful evaluation of the evolutionary stage offer a widely unexplored window to our understanding of YSOs X-ray properties. Within the EXTraS project, a search for transients and variability in the whole XMM-Newton archive, we discover transient X-ray emission consistent with ISO-Oph 85, a strongly embedded YSO in the rho Ophiuchi region, not detected i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.06286","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":""},"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":"2026-05-18T01:20:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MjqIgXz8cpUq2GG/1gnvKRxh0f5MujEHZeHL21S3hSqgJ+yT6mG5n5gjybbBX91w7eEtPCgZaQkSrF3YXm3VAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:08:14.573919Z"},"content_sha256":"b5dbd50d9a582c2e0a5825e5b93e3690c1b03fc0a2211abafe2627bcdf2d242a","schema_version":"1.0","event_id":"sha256:b5dbd50d9a582c2e0a5825e5b93e3690c1b03fc0a2211abafe2627bcdf2d242a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YBT6KFIBJSRWGDVWZHV4D2JVXK/bundle.json","state_url":"https://pith.science/pith/YBT6KFIBJSRWGDVWZHV4D2JVXK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YBT6KFIBJSRWGDVWZHV4D2JVXK/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":"2026-05-25T22:08:14Z","links":{"resolver":"https://pith.science/pith/YBT6KFIBJSRWGDVWZHV4D2JVXK","bundle":"https://pith.science/pith/YBT6KFIBJSRWGDVWZHV4D2JVXK/bundle.json","state":"https://pith.science/pith/YBT6KFIBJSRWGDVWZHV4D2JVXK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YBT6KFIBJSRWGDVWZHV4D2JVXK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:YBT6KFIBJSRWGDVWZHV4D2JVXK","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":"39df2e57727f0c1d818b16af1794939cf911fb59f5141b80e5711e0366e0a674","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-21T15:00:21Z","title_canon_sha256":"88525728388616170122cf7857b6a71b879360c8cb2d8667130b363bde088b81"},"schema_version":"1.0","source":{"id":"1510.06286","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.06286","created_at":"2026-05-18T01:20:33Z"},{"alias_kind":"arxiv_version","alias_value":"1510.06286v2","created_at":"2026-05-18T01:20:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.06286","created_at":"2026-05-18T01:20:33Z"},{"alias_kind":"pith_short_12","alias_value":"YBT6KFIBJSRW","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YBT6KFIBJSRWGDVW","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YBT6KFIB","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:b5dbd50d9a582c2e0a5825e5b93e3690c1b03fc0a2211abafe2627bcdf2d242a","target":"graph","created_at":"2026-05-18T01:20:33Z","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":"X-ray emission from Young Stellar Objects (YSOs) is crucial to understand star formation. A very limited amount of X-ray results is available for the protostellar (ClassI) phase. A systematic search of transient X-ray phenomena combined with a careful evaluation of the evolutionary stage offer a widely unexplored window to our understanding of YSOs X-ray properties. Within the EXTraS project, a search for transients and variability in the whole XMM-Newton archive, we discover transient X-ray emission consistent with ISO-Oph 85, a strongly embedded YSO in the rho Ophiuchi region, not detected i","authors_text":"Andrea Belfiore, Andrea De Luca, Andrea Tiengo, Beate Stelzer, Daniele D'Agostino, Daniele Pizzocaro, David Salvetti, Frank Haberl, Giacomo Vianello, Gianni Lisini, Giovanni Novara, Ignazio Pillitteri, Joern Wilms, Martino Marelli, Mike Watson, Roberta Paladini, Ruben Salvaterra, Salvatore Sciortino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-21T15:00:21Z","title":"Results from DROXO IV. EXTraS discovery of an X-ray flare from the Class I protostar candidate ISO-Oph 85"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.06286","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":"sha256:75894182c2b5dab30e6f3267e9845e55f92aa2cdf0ea6150e436790e51c94da4","target":"record","created_at":"2026-05-18T01:20:33Z","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":"39df2e57727f0c1d818b16af1794939cf911fb59f5141b80e5711e0366e0a674","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-21T15:00:21Z","title_canon_sha256":"88525728388616170122cf7857b6a71b879360c8cb2d8667130b363bde088b81"},"schema_version":"1.0","source":{"id":"1510.06286","kind":"arxiv","version":2}},"canonical_sha256":"c067e515014ca3630eb6c9ebc1e935bab15fbf2b2efb740a119270bd1ac500d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c067e515014ca3630eb6c9ebc1e935bab15fbf2b2efb740a119270bd1ac500d6","first_computed_at":"2026-05-18T01:20:33.623110Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:33.623110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hESUMLmBUUsgDspronpXXNoNX3hdgsRi9jcQzWTJnApol+fKznljoFjiYflWVbCkt8bG6aBn0wyXeRnkoXXYCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:33.623641Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.06286","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75894182c2b5dab30e6f3267e9845e55f92aa2cdf0ea6150e436790e51c94da4","sha256:b5dbd50d9a582c2e0a5825e5b93e3690c1b03fc0a2211abafe2627bcdf2d242a"],"state_sha256":"3bb5754b7da25c8bc7ba49b44776bcdcc31c5d34b9a4501661d6586b16bbbda9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8sSTMFd5s1uUdjJ4AobRb92++aFcNRWBjvirIMlmruEZcXDi8aIYAEEfKTZ8HEMU0WdZATtbOUgtwjwY8MjyCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:08:14.579459Z","bundle_sha256":"5da85a2ca7af5f6a6e881022195c6359d7fefe38a527f81bb98efa75c0c47f24"}}