{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:AHNW4FEFTB46B3NZPCXCEFV2CI","short_pith_number":"pith:AHNW4FEF","canonical_record":{"source":{"id":"2407.02655","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-02T20:38:43Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"d3f2cdf41aadf34f660436d16faa0bfe551f60c423cc2e503d89af2b6671ca3f","abstract_canon_sha256":"46dbbadeb56c5ccbbc4befd2f60600f4bd4f6496bfcf6434c18e980aa5c43298"},"schema_version":"1.0"},"canonical_sha256":"01db6e14859879e0edb978ae2216ba122e6ea79a79242bfe9512c5eebb5fa497","source":{"kind":"arxiv","id":"2407.02655","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.02655","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"arxiv_version","alias_value":"2407.02655v1","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.02655","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"pith_short_12","alias_value":"AHNW4FEFTB46","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"pith_short_16","alias_value":"AHNW4FEFTB46B3NZ","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"pith_short_8","alias_value":"AHNW4FEF","created_at":"2026-07-05T08:54:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:AHNW4FEFTB46B3NZPCXCEFV2CI","target":"record","payload":{"canonical_record":{"source":{"id":"2407.02655","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-02T20:38:43Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"d3f2cdf41aadf34f660436d16faa0bfe551f60c423cc2e503d89af2b6671ca3f","abstract_canon_sha256":"46dbbadeb56c5ccbbc4befd2f60600f4bd4f6496bfcf6434c18e980aa5c43298"},"schema_version":"1.0"},"canonical_sha256":"01db6e14859879e0edb978ae2216ba122e6ea79a79242bfe9512c5eebb5fa497","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:54:52.865491Z","signature_b64":"888a3W9XglBcX9iwQD9fBf98/hL7/TUv8O58xh02xQBufSqW3vY/TNdVz60G/DSnayYhNTQ7wVHOBoKzDo+4Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01db6e14859879e0edb978ae2216ba122e6ea79a79242bfe9512c5eebb5fa497","last_reissued_at":"2026-07-05T08:54:52.865041Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:54:52.865041Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.02655","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":"2026-07-05T08:54:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uTpu8gzqx6irNvr2Q+ySlWDAy4nt90k8SyIEk7/0k4XP/GB2rF6xSbJgZ2gdaYc7n45UiyZLx9FCAMEEQZRGBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T16:10:45.283673Z"},"content_sha256":"65ce9c0c7c50b51f8f33fafd5e3daa4ab24f18d93325f6c5bd5ec9d824f84731","schema_version":"1.0","event_id":"sha256:65ce9c0c7c50b51f8f33fafd5e3daa4ab24f18d93325f6c5bd5ec9d824f84731"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:AHNW4FEFTB46B3NZPCXCEFV2CI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrasoft state of microquasar Cygnus X-3: X-ray polarimetry reveals the geometry of astronomical puzzle","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Alessandro Di Marco, Alexandra Veledina, Anastasiia Bocharova, Andrzej A. Zdziarski, David A. Green, Enrico Costa, Fabio La Monaca, Fabio Muleri, Jakub Podgorny, Juri Poutanen, Lauren Rhodes, Michael McCollough, Michal Dovciak, Paolo Soffitta, Rashid Sunyaev, Sergey S. Tsygankov, Sofia V. Forsblom, Stefano Bianchi, Varpu Ahlberg, Vladislav Loktev","submitted_at":"2024-07-02T20:38:43Z","abstract_excerpt":"Cygnus X-3 is an enigmatic X-ray binary, that is both an exceptional accreting system and a cornerstone for the population synthesis studies. Prominent X-ray and radio properties follow a well-defined pattern, yet the physical reasons for the state changes observed in this system are not known. Recently, the presence of an optically thick envelope around the central source in the hard state was revealed using the X-ray polarization data obtained with Imaging X-ray Polarimetry Explorer (IXPE). In this work, we analyse IXPE data obtained in the ultrasoft (radio quenched) state of the source. The"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.02655","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/2407.02655/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":"2026-07-05T08:54:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VeG+8fJSSmiVEToM57qjDMRtSTsU4oMJuYGgrbKElqaud8rblnPE0WagCqdGefJVgW/v2L55CWE38lS361iIDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T16:10:45.284363Z"},"content_sha256":"5047e7146fbde5196548d4bc97405aa39613b5f8b5787e9762c572c7b0bdaaa5","schema_version":"1.0","event_id":"sha256:5047e7146fbde5196548d4bc97405aa39613b5f8b5787e9762c572c7b0bdaaa5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AHNW4FEFTB46B3NZPCXCEFV2CI/bundle.json","state_url":"https://pith.science/pith/AHNW4FEFTB46B3NZPCXCEFV2CI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AHNW4FEFTB46B3NZPCXCEFV2CI/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":"2026-08-05T16:10:45Z","links":{"resolver":"https://pith.science/pith/AHNW4FEFTB46B3NZPCXCEFV2CI","bundle":"https://pith.science/pith/AHNW4FEFTB46B3NZPCXCEFV2CI/bundle.json","state":"https://pith.science/pith/AHNW4FEFTB46B3NZPCXCEFV2CI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AHNW4FEFTB46B3NZPCXCEFV2CI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:AHNW4FEFTB46B3NZPCXCEFV2CI","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":"46dbbadeb56c5ccbbc4befd2f60600f4bd4f6496bfcf6434c18e980aa5c43298","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-02T20:38:43Z","title_canon_sha256":"d3f2cdf41aadf34f660436d16faa0bfe551f60c423cc2e503d89af2b6671ca3f"},"schema_version":"1.0","source":{"id":"2407.02655","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.02655","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"arxiv_version","alias_value":"2407.02655v1","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.02655","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"pith_short_12","alias_value":"AHNW4FEFTB46","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"pith_short_16","alias_value":"AHNW4FEFTB46B3NZ","created_at":"2026-07-05T08:54:52Z"},{"alias_kind":"pith_short_8","alias_value":"AHNW4FEF","created_at":"2026-07-05T08:54:52Z"}],"graph_snapshots":[{"event_id":"sha256:5047e7146fbde5196548d4bc97405aa39613b5f8b5787e9762c572c7b0bdaaa5","target":"graph","created_at":"2026-07-05T08:54:52Z","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/2407.02655/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cygnus X-3 is an enigmatic X-ray binary, that is both an exceptional accreting system and a cornerstone for the population synthesis studies. Prominent X-ray and radio properties follow a well-defined pattern, yet the physical reasons for the state changes observed in this system are not known. Recently, the presence of an optically thick envelope around the central source in the hard state was revealed using the X-ray polarization data obtained with Imaging X-ray Polarimetry Explorer (IXPE). In this work, we analyse IXPE data obtained in the ultrasoft (radio quenched) state of the source. The","authors_text":"Alessandro Di Marco, Alexandra Veledina, Anastasiia Bocharova, Andrzej A. Zdziarski, David A. Green, Enrico Costa, Fabio La Monaca, Fabio Muleri, Jakub Podgorny, Juri Poutanen, Lauren Rhodes, Michael McCollough, Michal Dovciak, Paolo Soffitta, Rashid Sunyaev, Sergey S. Tsygankov, Sofia V. Forsblom, Stefano Bianchi, Varpu Ahlberg, Vladislav Loktev","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-02T20:38:43Z","title":"Ultrasoft state of microquasar Cygnus X-3: X-ray polarimetry reveals the geometry of astronomical puzzle"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.02655","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":"sha256:65ce9c0c7c50b51f8f33fafd5e3daa4ab24f18d93325f6c5bd5ec9d824f84731","target":"record","created_at":"2026-07-05T08:54:52Z","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":"46dbbadeb56c5ccbbc4befd2f60600f4bd4f6496bfcf6434c18e980aa5c43298","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-02T20:38:43Z","title_canon_sha256":"d3f2cdf41aadf34f660436d16faa0bfe551f60c423cc2e503d89af2b6671ca3f"},"schema_version":"1.0","source":{"id":"2407.02655","kind":"arxiv","version":1}},"canonical_sha256":"01db6e14859879e0edb978ae2216ba122e6ea79a79242bfe9512c5eebb5fa497","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01db6e14859879e0edb978ae2216ba122e6ea79a79242bfe9512c5eebb5fa497","first_computed_at":"2026-07-05T08:54:52.865041Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:54:52.865041Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"888a3W9XglBcX9iwQD9fBf98/hL7/TUv8O58xh02xQBufSqW3vY/TNdVz60G/DSnayYhNTQ7wVHOBoKzDo+4Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:54:52.865491Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.02655","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:65ce9c0c7c50b51f8f33fafd5e3daa4ab24f18d93325f6c5bd5ec9d824f84731","sha256:5047e7146fbde5196548d4bc97405aa39613b5f8b5787e9762c572c7b0bdaaa5"],"state_sha256":"63b96c79178a84aa7c5f574cba1a119605d4e420f51083bb482c1687507f83e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z6My0FxoqNR2d+r7hxkbCtOW2or1VZ7y9Z464GbnZ1PW0xZM6f34BT05lZR++li5DrSJJpeUkbyiaZ3WXmxECQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T16:10:45.288429Z","bundle_sha256":"ba06facd59d25a061173fcf0e6bde102515480269aabaeb02f36937ab0b9b24e"}}