{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:2XFVU332AFQ25FOEWPODJU7R7S","short_pith_number":"pith:2XFVU332","canonical_record":{"source":{"id":"1312.3607","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-12-10T21:00:02Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"32a32ebe80d15f8b00cee2195e30daf87816bd4cb6a1a225d11c896229db8ecd","abstract_canon_sha256":"b3fb2df56146751883ff1c232ce86494da060b721987a678ab49d8dda2f3858d"},"schema_version":"1.0"},"canonical_sha256":"d5cb5a6f7a0161ae95c4b3dc34d3f1fcaf73337b87eb36764f2c2e4567785d63","source":{"kind":"arxiv","id":"1312.3607","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.3607","created_at":"2026-05-18T03:04:50Z"},{"alias_kind":"arxiv_version","alias_value":"1312.3607v1","created_at":"2026-05-18T03:04:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.3607","created_at":"2026-05-18T03:04:50Z"},{"alias_kind":"pith_short_12","alias_value":"2XFVU332AFQ2","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2XFVU332AFQ25FOE","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2XFVU332","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:2XFVU332AFQ25FOEWPODJU7R7S","target":"record","payload":{"canonical_record":{"source":{"id":"1312.3607","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-12-10T21:00:02Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"32a32ebe80d15f8b00cee2195e30daf87816bd4cb6a1a225d11c896229db8ecd","abstract_canon_sha256":"b3fb2df56146751883ff1c232ce86494da060b721987a678ab49d8dda2f3858d"},"schema_version":"1.0"},"canonical_sha256":"d5cb5a6f7a0161ae95c4b3dc34d3f1fcaf73337b87eb36764f2c2e4567785d63","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:04:50.394585Z","signature_b64":"5dsYZz7G6XtoToEWCrshAPIMUq177RRhWhY/yGf+Dth46TEtwhPlY+4oAoCCM7nHAto5d4+2xmh9FGC/Z4WJAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5cb5a6f7a0161ae95c4b3dc34d3f1fcaf73337b87eb36764f2c2e4567785d63","last_reissued_at":"2026-05-18T03:04:50.393911Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:04:50.393911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.3607","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":"2026-05-18T03:04:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vh0tb1p1Hlw58v7KwhgdIIOR8G2R08dkbFNunWfiZKYpD/xbfDfZ8RHDPxV/Gl9vnZvXmBOWuEIQNdC+nj3vBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:17:35.459516Z"},"content_sha256":"578dd8c8883bc452fd6eb82bacf5aea58aa75b367a40aa973f3acf25347e3a2b","schema_version":"1.0","event_id":"sha256:578dd8c8883bc452fd6eb82bacf5aea58aa75b367a40aa973f3acf25347e3a2b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:2XFVU332AFQ25FOEWPODJU7R7S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stability of the MIDI photometry: the case of Circinus","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"Bonn, Germany), Konrad R. W. Tristram (MPI f\\\"ur Radioastronomie","submitted_at":"2013-12-10T21:00:02Z","abstract_excerpt":"In principle, the MID-infrared Interferometric instrument (MIDI) at the Very Large Telescope Array (VLTI) should always measure the same calibrated total flux spectrum for a specific source, independent of the instrument settings and the baseline geometry. In the data on the Circinus galaxy, however, there is (a) a general offset of the flux values for 2009 and (b) a slow drift of the total fluxes at short wavelengths during two nights (2008-04-17 and 2009-04-14). The latter seems to depend on the hour angle of the observation. In this document, a more detailed analysis of these two effects is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.3607","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":""},"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":"2026-05-18T03:04:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1ez1HssYWtH6UBxhaXszTDykzYbv22Jo6ghIZL/HB+pNKKo6xRLrd/XmK51IOkCvFIZs8jHMuz7Dz4qHj8tDAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:17:35.459868Z"},"content_sha256":"87c7379b7998be8a3b6abe73c7058c7118b99a5a9b77bed97ca5105831a7c816","schema_version":"1.0","event_id":"sha256:87c7379b7998be8a3b6abe73c7058c7118b99a5a9b77bed97ca5105831a7c816"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2XFVU332AFQ25FOEWPODJU7R7S/bundle.json","state_url":"https://pith.science/pith/2XFVU332AFQ25FOEWPODJU7R7S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2XFVU332AFQ25FOEWPODJU7R7S/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":"2026-05-30T18:17:35Z","links":{"resolver":"https://pith.science/pith/2XFVU332AFQ25FOEWPODJU7R7S","bundle":"https://pith.science/pith/2XFVU332AFQ25FOEWPODJU7R7S/bundle.json","state":"https://pith.science/pith/2XFVU332AFQ25FOEWPODJU7R7S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2XFVU332AFQ25FOEWPODJU7R7S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:2XFVU332AFQ25FOEWPODJU7R7S","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":"b3fb2df56146751883ff1c232ce86494da060b721987a678ab49d8dda2f3858d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-12-10T21:00:02Z","title_canon_sha256":"32a32ebe80d15f8b00cee2195e30daf87816bd4cb6a1a225d11c896229db8ecd"},"schema_version":"1.0","source":{"id":"1312.3607","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.3607","created_at":"2026-05-18T03:04:50Z"},{"alias_kind":"arxiv_version","alias_value":"1312.3607v1","created_at":"2026-05-18T03:04:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.3607","created_at":"2026-05-18T03:04:50Z"},{"alias_kind":"pith_short_12","alias_value":"2XFVU332AFQ2","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2XFVU332AFQ25FOE","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2XFVU332","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:87c7379b7998be8a3b6abe73c7058c7118b99a5a9b77bed97ca5105831a7c816","target":"graph","created_at":"2026-05-18T03:04:50Z","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":"In principle, the MID-infrared Interferometric instrument (MIDI) at the Very Large Telescope Array (VLTI) should always measure the same calibrated total flux spectrum for a specific source, independent of the instrument settings and the baseline geometry. In the data on the Circinus galaxy, however, there is (a) a general offset of the flux values for 2009 and (b) a slow drift of the total fluxes at short wavelengths during two nights (2008-04-17 and 2009-04-14). The latter seems to depend on the hour angle of the observation. In this document, a more detailed analysis of these two effects is","authors_text":"Bonn, Germany), Konrad R. W. Tristram (MPI f\\\"ur Radioastronomie","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-12-10T21:00:02Z","title":"Stability of the MIDI photometry: the case of Circinus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.3607","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":"sha256:578dd8c8883bc452fd6eb82bacf5aea58aa75b367a40aa973f3acf25347e3a2b","target":"record","created_at":"2026-05-18T03:04:50Z","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":"b3fb2df56146751883ff1c232ce86494da060b721987a678ab49d8dda2f3858d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-12-10T21:00:02Z","title_canon_sha256":"32a32ebe80d15f8b00cee2195e30daf87816bd4cb6a1a225d11c896229db8ecd"},"schema_version":"1.0","source":{"id":"1312.3607","kind":"arxiv","version":1}},"canonical_sha256":"d5cb5a6f7a0161ae95c4b3dc34d3f1fcaf73337b87eb36764f2c2e4567785d63","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5cb5a6f7a0161ae95c4b3dc34d3f1fcaf73337b87eb36764f2c2e4567785d63","first_computed_at":"2026-05-18T03:04:50.393911Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:04:50.393911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5dsYZz7G6XtoToEWCrshAPIMUq177RRhWhY/yGf+Dth46TEtwhPlY+4oAoCCM7nHAto5d4+2xmh9FGC/Z4WJAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:04:50.394585Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.3607","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:578dd8c8883bc452fd6eb82bacf5aea58aa75b367a40aa973f3acf25347e3a2b","sha256:87c7379b7998be8a3b6abe73c7058c7118b99a5a9b77bed97ca5105831a7c816"],"state_sha256":"c22a0b63cc36520eb0f72db4b6feea63727b7ff385a685b6621fed6232843869"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/g6iN/OsBoixibArHRUM4xkK3zimm+LYFzaIkJ2Vvb1/kZNRD3ViLVUSoUvVOm2BDTDdUQxxvhX99X/FDsUyDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T18:17:35.462012Z","bundle_sha256":"a83e595a1340e2e63c661b8330f47ae09918b36adeb8154b6dcbdfbfed0f60f9"}}