{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:GJ47ODN4LDRHG4Z5UQ6M6NDR4T","short_pith_number":"pith:GJ47ODN4","canonical_record":{"source":{"id":"2402.05175","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-02-07T19:00:02Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"a98e15093c9fd513f8182a5e8effa5dce7450699a9d82cf19e6985a391976a78","abstract_canon_sha256":"93c6059f8810db467f664f967edfca85c3ed62691e09e489705dbc0d1c23cab4"},"schema_version":"1.0"},"canonical_sha256":"3279f70dbc58e273733da43ccf3471e4fac13f9c83b575b1700662f423f59582","source":{"kind":"arxiv","id":"2402.05175","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.05175","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"arxiv_version","alias_value":"2402.05175v1","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.05175","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"pith_short_12","alias_value":"GJ47ODN4LDRH","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"pith_short_16","alias_value":"GJ47ODN4LDRHG4Z5","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"pith_short_8","alias_value":"GJ47ODN4","created_at":"2026-07-05T09:37:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:GJ47ODN4LDRHG4Z5UQ6M6NDR4T","target":"record","payload":{"canonical_record":{"source":{"id":"2402.05175","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-02-07T19:00:02Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"a98e15093c9fd513f8182a5e8effa5dce7450699a9d82cf19e6985a391976a78","abstract_canon_sha256":"93c6059f8810db467f664f967edfca85c3ed62691e09e489705dbc0d1c23cab4"},"schema_version":"1.0"},"canonical_sha256":"3279f70dbc58e273733da43ccf3471e4fac13f9c83b575b1700662f423f59582","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:37:35.198653Z","signature_b64":"f1XjD87MGlCB9qi4hD62ekrlTQD5/do0j+E9KA+zqKqXxntYfJso1NUm19XjCi44QLRJ+NXLwLn6QjHqy14ODQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3279f70dbc58e273733da43ccf3471e4fac13f9c83b575b1700662f423f59582","last_reissued_at":"2026-07-05T09:37:35.198120Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:37:35.198120Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.05175","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":"2026-07-05T09:37:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HoKHEUFRZhoYjoCxugmCfUAielpg+z4+sPCvkCtjlzQtDLXOq9fSCW3gIq4MDeS/6N8wH5xTiNdyYs/D9VyAAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T16:02:55.748828Z"},"content_sha256":"7306298cca61a7a04457980c4d2ef9133b3b78a748c8d316a017833fa8c15378","schema_version":"1.0","event_id":"sha256:7306298cca61a7a04457980c4d2ef9133b3b78a748c8d316a017833fa8c15378"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:GJ47ODN4LDRHG4Z5UQ6M6NDR4T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electromagnetic signatures from accreting massive black hole binaries in time domain photometric surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"Alberto Sesana, Alessandro Lupi, Alessia Franchini, Fabiola Cocchiararo","submitted_at":"2024-02-07T19:00:02Z","abstract_excerpt":"We study spectral and time variability of accreting massive black hole binaries (MBHBs) at milli-pc separations surrounded by a geometrically thin circumbinary disc. We present the first computed spectral energy distribution (SED) and light curves (LCs) from 3D hyper-Lagrangian resolution hydrodynamic simulations of these systems. We model binaries with mass of $10^6$ M$_\\odot$, eccentricities e=0, 0.9 and mass ratio q=0.1,1. The circumbinary disc has initial aspect ratio of 0.1, features an adiabatic equation of state, and evolves under the effect of viscous heating, black body cooling and se"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.05175","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/2402.05175/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":"2026-07-05T09:37:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M7Skc1hWTdBLW1+RZlL0BO4ZX6e4qGlyU8LzhbgNum5s2KxvgnoQUJpiF2WShdGoPsXg2nslIcQUi+vUbDoKBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T16:02:55.749359Z"},"content_sha256":"a47dc6e7119a4965f6aad2c52bfbfffaf2f89001e42162057707da7ebf495e09","schema_version":"1.0","event_id":"sha256:a47dc6e7119a4965f6aad2c52bfbfffaf2f89001e42162057707da7ebf495e09"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GJ47ODN4LDRHG4Z5UQ6M6NDR4T/bundle.json","state_url":"https://pith.science/pith/GJ47ODN4LDRHG4Z5UQ6M6NDR4T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GJ47ODN4LDRHG4Z5UQ6M6NDR4T/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":"2026-08-05T16:02:55Z","links":{"resolver":"https://pith.science/pith/GJ47ODN4LDRHG4Z5UQ6M6NDR4T","bundle":"https://pith.science/pith/GJ47ODN4LDRHG4Z5UQ6M6NDR4T/bundle.json","state":"https://pith.science/pith/GJ47ODN4LDRHG4Z5UQ6M6NDR4T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GJ47ODN4LDRHG4Z5UQ6M6NDR4T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:GJ47ODN4LDRHG4Z5UQ6M6NDR4T","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":"93c6059f8810db467f664f967edfca85c3ed62691e09e489705dbc0d1c23cab4","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-02-07T19:00:02Z","title_canon_sha256":"a98e15093c9fd513f8182a5e8effa5dce7450699a9d82cf19e6985a391976a78"},"schema_version":"1.0","source":{"id":"2402.05175","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.05175","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"arxiv_version","alias_value":"2402.05175v1","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.05175","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"pith_short_12","alias_value":"GJ47ODN4LDRH","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"pith_short_16","alias_value":"GJ47ODN4LDRHG4Z5","created_at":"2026-07-05T09:37:35Z"},{"alias_kind":"pith_short_8","alias_value":"GJ47ODN4","created_at":"2026-07-05T09:37:35Z"}],"graph_snapshots":[{"event_id":"sha256:a47dc6e7119a4965f6aad2c52bfbfffaf2f89001e42162057707da7ebf495e09","target":"graph","created_at":"2026-07-05T09:37:35Z","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/2402.05175/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study spectral and time variability of accreting massive black hole binaries (MBHBs) at milli-pc separations surrounded by a geometrically thin circumbinary disc. We present the first computed spectral energy distribution (SED) and light curves (LCs) from 3D hyper-Lagrangian resolution hydrodynamic simulations of these systems. We model binaries with mass of $10^6$ M$_\\odot$, eccentricities e=0, 0.9 and mass ratio q=0.1,1. The circumbinary disc has initial aspect ratio of 0.1, features an adiabatic equation of state, and evolves under the effect of viscous heating, black body cooling and se","authors_text":"Alberto Sesana, Alessandro Lupi, Alessia Franchini, Fabiola Cocchiararo","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-02-07T19:00:02Z","title":"Electromagnetic signatures from accreting massive black hole binaries in time domain photometric surveys"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.05175","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":"sha256:7306298cca61a7a04457980c4d2ef9133b3b78a748c8d316a017833fa8c15378","target":"record","created_at":"2026-07-05T09:37:35Z","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":"93c6059f8810db467f664f967edfca85c3ed62691e09e489705dbc0d1c23cab4","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-02-07T19:00:02Z","title_canon_sha256":"a98e15093c9fd513f8182a5e8effa5dce7450699a9d82cf19e6985a391976a78"},"schema_version":"1.0","source":{"id":"2402.05175","kind":"arxiv","version":1}},"canonical_sha256":"3279f70dbc58e273733da43ccf3471e4fac13f9c83b575b1700662f423f59582","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3279f70dbc58e273733da43ccf3471e4fac13f9c83b575b1700662f423f59582","first_computed_at":"2026-07-05T09:37:35.198120Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:37:35.198120Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f1XjD87MGlCB9qi4hD62ekrlTQD5/do0j+E9KA+zqKqXxntYfJso1NUm19XjCi44QLRJ+NXLwLn6QjHqy14ODQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:37:35.198653Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.05175","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7306298cca61a7a04457980c4d2ef9133b3b78a748c8d316a017833fa8c15378","sha256:a47dc6e7119a4965f6aad2c52bfbfffaf2f89001e42162057707da7ebf495e09"],"state_sha256":"c8e3351cb3f4124a7898ca701b005ef5eccda891eaa59805b9e0da9979e44225"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E+ej8BogZj9sShdBBn6ei6SpwhV16O95EmXvm/WL0Y2+Eq7Ujb0a9MN1TIXcDNiNCqkzYcqZ2BoBphEZnwmjBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T16:02:55.754548Z","bundle_sha256":"00341e56b0af67c2c62c2c53687469c45090f31d6fe424937e3906ccf0542f51"}}