{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:PSGB5S7JWK6WDVSBTM3TM2GYG2","short_pith_number":"pith:PSGB5S7J","canonical_record":{"source":{"id":"2506.01053","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-01T15:41:52Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"9550e57e7e9c8c97cb7215e2501fc57fadc471e9799647f2438bdc017a749f0c","abstract_canon_sha256":"41d04eca7d1812bee7b0883c0da95ae2fbd587d98328b5ad2bd3903dcf7a885d"},"schema_version":"1.0"},"canonical_sha256":"7c8c1ecbe9b2bd61d6419b373668d836954de5861018fb5aa05ecfd82d28ceb3","source":{"kind":"arxiv","id":"2506.01053","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.01053","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"arxiv_version","alias_value":"2506.01053v1","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.01053","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"pith_short_12","alias_value":"PSGB5S7JWK6W","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"pith_short_16","alias_value":"PSGB5S7JWK6WDVSB","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"pith_short_8","alias_value":"PSGB5S7J","created_at":"2026-07-05T11:13:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:PSGB5S7JWK6WDVSBTM3TM2GYG2","target":"record","payload":{"canonical_record":{"source":{"id":"2506.01053","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-01T15:41:52Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"9550e57e7e9c8c97cb7215e2501fc57fadc471e9799647f2438bdc017a749f0c","abstract_canon_sha256":"41d04eca7d1812bee7b0883c0da95ae2fbd587d98328b5ad2bd3903dcf7a885d"},"schema_version":"1.0"},"canonical_sha256":"7c8c1ecbe9b2bd61d6419b373668d836954de5861018fb5aa05ecfd82d28ceb3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:13:45.162802Z","signature_b64":"9CpBZoTjHjQiOxAeqrm69om837xZmm7vEcTeJ/MR2s37OdfJ+PHE+X0e4a2LBUnJOJ+RGW86OLE7t2DFUNjSCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c8c1ecbe9b2bd61d6419b373668d836954de5861018fb5aa05ecfd82d28ceb3","last_reissued_at":"2026-07-05T11:13:45.162331Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:13:45.162331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.01053","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":"2026-07-05T11:13:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BSm+oVOGSY7NRGzexTKz85Zavk2X+sd6tGbsHX2C0Njse6dMbMJWqdGRloRb+VF7VKQ4SjY4Jhadwt/yOVGrBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T05:12:16.462450Z"},"content_sha256":"70ab9bd6357b507d0a2558806334f6cf42a3420163272fedb83bd95b9f6bbe73","schema_version":"1.0","event_id":"sha256:70ab9bd6357b507d0a2558806334f6cf42a3420163272fedb83bd95b9f6bbe73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:PSGB5S7JWK6WDVSBTM3TM2GYG2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Radioastron probing the fine structure of the flaring H2O maser in star-forming region G25.65+1.05","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"A. V. Alakoz (1), I. D. Litovchenko (1) ((1) Astro-Space Center of the P.N. Lebedev Physical Institute, I. E. Val'tts (1), Moscow, N. N. Shakhvorostova (1), Russia)","submitted_at":"2025-06-01T15:41:52Z","abstract_excerpt":"The paper describes a Space-VLBI observation of the 22 GHz H2O masers in the massive star-forming region G25.65+1.05, using the 10-m space antenna of Radioastron together with the ground-based VLBA array. Two observing epochs at the pre-flare and post-flare state of the maser source are presented. Leveraging the exceptional angular resolution provided by space-ground baselines along with the broad UV coverage from VLBA baselines, we gained a detailed perspective on the area associated with the maser flare events."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.01053","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/2506.01053/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":"2026-07-05T11:13:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3CQdodnFjl+l28qcO7vxIOiOzAyzUNqrg1AFcAHVTjMv8ExCBeIpXev8fFERrTSL1scNylZtrEoIvMc5us5kCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T05:12:16.463491Z"},"content_sha256":"7e60f4ee0fedf3ab6a920724f116863e7698a7f9109c813abef9a904e0f793e0","schema_version":"1.0","event_id":"sha256:7e60f4ee0fedf3ab6a920724f116863e7698a7f9109c813abef9a904e0f793e0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PSGB5S7JWK6WDVSBTM3TM2GYG2/bundle.json","state_url":"https://pith.science/pith/PSGB5S7JWK6WDVSBTM3TM2GYG2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PSGB5S7JWK6WDVSBTM3TM2GYG2/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":"2026-08-08T05:12:16Z","links":{"resolver":"https://pith.science/pith/PSGB5S7JWK6WDVSBTM3TM2GYG2","bundle":"https://pith.science/pith/PSGB5S7JWK6WDVSBTM3TM2GYG2/bundle.json","state":"https://pith.science/pith/PSGB5S7JWK6WDVSBTM3TM2GYG2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PSGB5S7JWK6WDVSBTM3TM2GYG2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PSGB5S7JWK6WDVSBTM3TM2GYG2","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":"41d04eca7d1812bee7b0883c0da95ae2fbd587d98328b5ad2bd3903dcf7a885d","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-01T15:41:52Z","title_canon_sha256":"9550e57e7e9c8c97cb7215e2501fc57fadc471e9799647f2438bdc017a749f0c"},"schema_version":"1.0","source":{"id":"2506.01053","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.01053","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"arxiv_version","alias_value":"2506.01053v1","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.01053","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"pith_short_12","alias_value":"PSGB5S7JWK6W","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"pith_short_16","alias_value":"PSGB5S7JWK6WDVSB","created_at":"2026-07-05T11:13:45Z"},{"alias_kind":"pith_short_8","alias_value":"PSGB5S7J","created_at":"2026-07-05T11:13:45Z"}],"graph_snapshots":[{"event_id":"sha256:7e60f4ee0fedf3ab6a920724f116863e7698a7f9109c813abef9a904e0f793e0","target":"graph","created_at":"2026-07-05T11:13:45Z","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/2506.01053/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The paper describes a Space-VLBI observation of the 22 GHz H2O masers in the massive star-forming region G25.65+1.05, using the 10-m space antenna of Radioastron together with the ground-based VLBA array. Two observing epochs at the pre-flare and post-flare state of the maser source are presented. Leveraging the exceptional angular resolution provided by space-ground baselines along with the broad UV coverage from VLBA baselines, we gained a detailed perspective on the area associated with the maser flare events.","authors_text":"A. V. Alakoz (1), I. D. Litovchenko (1) ((1) Astro-Space Center of the P.N. Lebedev Physical Institute, I. E. Val'tts (1), Moscow, N. N. Shakhvorostova (1), Russia)","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-01T15:41:52Z","title":"Radioastron probing the fine structure of the flaring H2O maser in star-forming region G25.65+1.05"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.01053","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":"sha256:70ab9bd6357b507d0a2558806334f6cf42a3420163272fedb83bd95b9f6bbe73","target":"record","created_at":"2026-07-05T11:13:45Z","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":"41d04eca7d1812bee7b0883c0da95ae2fbd587d98328b5ad2bd3903dcf7a885d","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-01T15:41:52Z","title_canon_sha256":"9550e57e7e9c8c97cb7215e2501fc57fadc471e9799647f2438bdc017a749f0c"},"schema_version":"1.0","source":{"id":"2506.01053","kind":"arxiv","version":1}},"canonical_sha256":"7c8c1ecbe9b2bd61d6419b373668d836954de5861018fb5aa05ecfd82d28ceb3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c8c1ecbe9b2bd61d6419b373668d836954de5861018fb5aa05ecfd82d28ceb3","first_computed_at":"2026-07-05T11:13:45.162331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:13:45.162331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9CpBZoTjHjQiOxAeqrm69om837xZmm7vEcTeJ/MR2s37OdfJ+PHE+X0e4a2LBUnJOJ+RGW86OLE7t2DFUNjSCw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:13:45.162802Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.01053","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70ab9bd6357b507d0a2558806334f6cf42a3420163272fedb83bd95b9f6bbe73","sha256:7e60f4ee0fedf3ab6a920724f116863e7698a7f9109c813abef9a904e0f793e0"],"state_sha256":"faabbe5b8b9ff89edb4fd4a89104e367866d04bcd99047de3ef1333f0fe164cd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VxzbI7IPvRfVAbs8MKGT6Z44YClqdLFslWs2niKEwN/BN6P/IBm869NukWzsfjx+Yvye6UeFDtWX1voMTLewBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T05:12:16.468233Z","bundle_sha256":"35dd6239752812d3ea4167675ac023843f753097658c9a94b13177c17f3c64f7"}}