{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:BLV23C5N7UTRUAUSCJTI54AHKJ","short_pith_number":"pith:BLV23C5N","canonical_record":{"source":{"id":"1510.08255","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-28T10:54:12Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"7e1af6c30f21a1919a43d45bdbeabfe2d77bb205039553f7154e6d3126c2c5b1","abstract_canon_sha256":"5db83fc6ef79e2a57f5550e66adbd1797e17bdc32d9751aba9bd2a361b015405"},"schema_version":"1.0"},"canonical_sha256":"0aebad8badfd271a029212668ef0075250f6bc679b8306f4bcb313765b99d96c","source":{"kind":"arxiv","id":"1510.08255","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.08255","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"arxiv_version","alias_value":"1510.08255v3","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.08255","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"pith_short_12","alias_value":"BLV23C5N7UTR","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"BLV23C5N7UTRUAUS","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"BLV23C5N","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:BLV23C5N7UTRUAUSCJTI54AHKJ","target":"record","payload":{"canonical_record":{"source":{"id":"1510.08255","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-28T10:54:12Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"7e1af6c30f21a1919a43d45bdbeabfe2d77bb205039553f7154e6d3126c2c5b1","abstract_canon_sha256":"5db83fc6ef79e2a57f5550e66adbd1797e17bdc32d9751aba9bd2a361b015405"},"schema_version":"1.0"},"canonical_sha256":"0aebad8badfd271a029212668ef0075250f6bc679b8306f4bcb313765b99d96c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:58.389136Z","signature_b64":"eRBTX4Eri7v3y8QbKg6b0SaUNW6f629jL5wGSZBGy0OWHxCr6HkIIxA+FAH2OCum8e9SVa2ZVZ6h+9wo4VDVAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0aebad8badfd271a029212668ef0075250f6bc679b8306f4bcb313765b99d96c","last_reissued_at":"2026-05-18T01:22:58.388478Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:58.388478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.08255","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:22:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PhHcwnKMEO6ewbU2Mi0xrP7jXcoizSzmzsZqJaeVSaI4DYaHhYiOcw3aDe9QL8TvqPTpzAsfvB2FMt2tjw3RDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:20:14.606996Z"},"content_sha256":"658010904f58e1d46d758fb265d12d99934488c53fe57f8127c9accad6171004","schema_version":"1.0","event_id":"sha256:658010904f58e1d46d758fb265d12d99934488c53fe57f8127c9accad6171004"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:BLV23C5N7UTRUAUSCJTI54AHKJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"X-Shooter study of accretion in Chamaeleon I","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"(2) INAF/Arcetri, 3), (3) MPE, (4) Kavli Institute Peking, (5) Universitaet Wien), C. F. Manara (1), D. Fedele (2, G. J. Herczeg (4), P. Teixeira (5) ((1) ESA/ESTEC","submitted_at":"2015-10-28T10:54:12Z","abstract_excerpt":"We present the analysis of 34 new VLT/X-Shooter spectra of young stellar objects in the Chamaeleon I star forming region, together with four more spectra of stars in Taurus and two in Chamaeleon II. The broad wavelength coverage and accurate flux calibration of our spectra allow us to estimate stellar and accretion parameters for our targets by fitting the photospheric and accretion continuum emission from the Balmer continuum down to 700 nm. The dependence of accretion with stellar properties for this sample is consistent with previous results from the literature. The accretion rates for tran"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.08255","kind":"arxiv","version":3},"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":"2026-05-18T01:22:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oYhEz2CpIwH10B7X3AYbvV6GSllWq+K+hSL2lOpPTWmsHsMvFIwAVBPTFMf/35GVnHk492BdXWCkIVXHUlE3DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:20:14.607686Z"},"content_sha256":"e73948c8022cbbfc9b8d0b628c395828379e7727a41a4b2fb7e3d274a891659e","schema_version":"1.0","event_id":"sha256:e73948c8022cbbfc9b8d0b628c395828379e7727a41a4b2fb7e3d274a891659e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BLV23C5N7UTRUAUSCJTI54AHKJ/bundle.json","state_url":"https://pith.science/pith/BLV23C5N7UTRUAUSCJTI54AHKJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BLV23C5N7UTRUAUSCJTI54AHKJ/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":"2026-05-27T22:20:14Z","links":{"resolver":"https://pith.science/pith/BLV23C5N7UTRUAUSCJTI54AHKJ","bundle":"https://pith.science/pith/BLV23C5N7UTRUAUSCJTI54AHKJ/bundle.json","state":"https://pith.science/pith/BLV23C5N7UTRUAUSCJTI54AHKJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BLV23C5N7UTRUAUSCJTI54AHKJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:BLV23C5N7UTRUAUSCJTI54AHKJ","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":"5db83fc6ef79e2a57f5550e66adbd1797e17bdc32d9751aba9bd2a361b015405","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-28T10:54:12Z","title_canon_sha256":"7e1af6c30f21a1919a43d45bdbeabfe2d77bb205039553f7154e6d3126c2c5b1"},"schema_version":"1.0","source":{"id":"1510.08255","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.08255","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"arxiv_version","alias_value":"1510.08255v3","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.08255","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"pith_short_12","alias_value":"BLV23C5N7UTR","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"BLV23C5N7UTRUAUS","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"BLV23C5N","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:e73948c8022cbbfc9b8d0b628c395828379e7727a41a4b2fb7e3d274a891659e","target":"graph","created_at":"2026-05-18T01:22:58Z","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":"We present the analysis of 34 new VLT/X-Shooter spectra of young stellar objects in the Chamaeleon I star forming region, together with four more spectra of stars in Taurus and two in Chamaeleon II. The broad wavelength coverage and accurate flux calibration of our spectra allow us to estimate stellar and accretion parameters for our targets by fitting the photospheric and accretion continuum emission from the Balmer continuum down to 700 nm. The dependence of accretion with stellar properties for this sample is consistent with previous results from the literature. The accretion rates for tran","authors_text":"(2) INAF/Arcetri, 3), (3) MPE, (4) Kavli Institute Peking, (5) Universitaet Wien), C. F. Manara (1), D. Fedele (2, G. J. Herczeg (4), P. Teixeira (5) ((1) ESA/ESTEC","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-28T10:54:12Z","title":"X-Shooter study of accretion in Chamaeleon I"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.08255","kind":"arxiv","version":3},"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":"sha256:658010904f58e1d46d758fb265d12d99934488c53fe57f8127c9accad6171004","target":"record","created_at":"2026-05-18T01:22:58Z","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":"5db83fc6ef79e2a57f5550e66adbd1797e17bdc32d9751aba9bd2a361b015405","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-10-28T10:54:12Z","title_canon_sha256":"7e1af6c30f21a1919a43d45bdbeabfe2d77bb205039553f7154e6d3126c2c5b1"},"schema_version":"1.0","source":{"id":"1510.08255","kind":"arxiv","version":3}},"canonical_sha256":"0aebad8badfd271a029212668ef0075250f6bc679b8306f4bcb313765b99d96c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0aebad8badfd271a029212668ef0075250f6bc679b8306f4bcb313765b99d96c","first_computed_at":"2026-05-18T01:22:58.388478Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:58.388478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eRBTX4Eri7v3y8QbKg6b0SaUNW6f629jL5wGSZBGy0OWHxCr6HkIIxA+FAH2OCum8e9SVa2ZVZ6h+9wo4VDVAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:58.389136Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.08255","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:658010904f58e1d46d758fb265d12d99934488c53fe57f8127c9accad6171004","sha256:e73948c8022cbbfc9b8d0b628c395828379e7727a41a4b2fb7e3d274a891659e"],"state_sha256":"718ab9be67c72bbd6ef62816cef1b3715c96adab2b1fe8913636ab1f0b2b90a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"flfrez0DQIhJbz+7t7Vd1FZY1fz3kUZJ7JNwzEvcyOzTuszMOz6nuaIJAZ/iqIfQoYfiE+ivOK7ltc2D/sTLCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T22:20:14.611072Z","bundle_sha256":"25e82278057c55d2f8f01f7522450361ace6dc990a1694d1d894f51a1a0902a8"}}