{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:ZB33UKT4C6YUJLCT6V5XZKA7SA","short_pith_number":"pith:ZB33UKT4","canonical_record":{"source":{"id":"2503.11721","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-13T21:24:14Z","cross_cats_sorted":["astro-ph.GA","gr-qc"],"title_canon_sha256":"08744243b161724cf05ad5fa69a1fefb715a7b9da3f2724a570c03bcbba200b1","abstract_canon_sha256":"d96362d3d9673eba54ed1820e21a83961479e1dda6d3cb7a97bc187409726813"},"schema_version":"1.0"},"canonical_sha256":"c877ba2a7c17b144ac53f57b7ca81f903b7eaabc9dd68cc7d368279fe2abe63d","source":{"kind":"arxiv","id":"2503.11721","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.11721","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"arxiv_version","alias_value":"2503.11721v2","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.11721","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"pith_short_12","alias_value":"ZB33UKT4C6YU","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"pith_short_16","alias_value":"ZB33UKT4C6YUJLCT","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"pith_short_8","alias_value":"ZB33UKT4","created_at":"2026-07-05T11:03:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:ZB33UKT4C6YUJLCT6V5XZKA7SA","target":"record","payload":{"canonical_record":{"source":{"id":"2503.11721","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-13T21:24:14Z","cross_cats_sorted":["astro-ph.GA","gr-qc"],"title_canon_sha256":"08744243b161724cf05ad5fa69a1fefb715a7b9da3f2724a570c03bcbba200b1","abstract_canon_sha256":"d96362d3d9673eba54ed1820e21a83961479e1dda6d3cb7a97bc187409726813"},"schema_version":"1.0"},"canonical_sha256":"c877ba2a7c17b144ac53f57b7ca81f903b7eaabc9dd68cc7d368279fe2abe63d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:03:22.185816Z","signature_b64":"1wiHuSUao1imKsoYM7e01D7OGy+twloV+tHyU+0XTvHf+4bx3sdCCcEa95/kxvAAIt55rYQBWu50ExwRAiwhCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c877ba2a7c17b144ac53f57b7ca81f903b7eaabc9dd68cc7d368279fe2abe63d","last_reissued_at":"2026-07-05T11:03:22.185402Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:03:22.185402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.11721","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:03:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QLF9qiNjx+cH/nSd7c2HAeN/k8UIjh3FQ7uZvRsqKFb2PkAwPXXAlqDH6YVgbuKt9FjMXhK/ZTGdkX+m82b9Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T16:49:56.800930Z"},"content_sha256":"2e3c3c5c62c3391fdc304ccf072dd27074cad241f386b8bf12265c80ffd3a714","schema_version":"1.0","event_id":"sha256:2e3c3c5c62c3391fdc304ccf072dd27074cad241f386b8bf12265c80ffd3a714"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:ZB33UKT4C6YUJLCT6V5XZKA7SA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Identifying intermediate mass binary black hole mergers in AGN disks using LISA","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA","gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Anuradha Samajdar, K. G. Arun, Parthapratim Mahapatra, Poulami Dutta Roy","submitted_at":"2025-03-13T21:24:14Z","abstract_excerpt":"We show that Laser Interferometer Space Antenna can uniquely identify the sites of intermediate-mass binary black hole (IMBBH) mergers if they occur in Active Galactic Nuclei (AGN) disks with a gas density $\\rho\\geq10^{-12} \\, {\\rm g/cc}$ via measurement of dynamical friction effect in the gravitational waveform. We find that even a single observation of a gravitational wave source with a total mass of $10^3 M_{\\odot}$ and a mass ratio of 2 at a luminosity distance of 3 Gpc is sufficient to confidently associate the merger to be in an AGN disk with a density $\\sim 10^{-12} \\, {\\rm g/cc}$, as i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.11721","kind":"arxiv","version":2},"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/2503.11721/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":"2026-07-05T11:03:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vNtDdlD4qgQf1LeD6tUdVhkGvs4o0qW1GkjVNnM8KBfY7KRhIOw588tb/xWK+DK2Uton9/JoEnyrwJFn4GtYCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T16:49:56.801529Z"},"content_sha256":"b5a35d309d50ec54926dc0a7efa809f9eed821e7ca86a7ee538be8c19dc8ff53","schema_version":"1.0","event_id":"sha256:b5a35d309d50ec54926dc0a7efa809f9eed821e7ca86a7ee538be8c19dc8ff53"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZB33UKT4C6YUJLCT6V5XZKA7SA/bundle.json","state_url":"https://pith.science/pith/ZB33UKT4C6YUJLCT6V5XZKA7SA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZB33UKT4C6YUJLCT6V5XZKA7SA/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":"2026-08-19T16:49:56Z","links":{"resolver":"https://pith.science/pith/ZB33UKT4C6YUJLCT6V5XZKA7SA","bundle":"https://pith.science/pith/ZB33UKT4C6YUJLCT6V5XZKA7SA/bundle.json","state":"https://pith.science/pith/ZB33UKT4C6YUJLCT6V5XZKA7SA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZB33UKT4C6YUJLCT6V5XZKA7SA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:ZB33UKT4C6YUJLCT6V5XZKA7SA","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":"d96362d3d9673eba54ed1820e21a83961479e1dda6d3cb7a97bc187409726813","cross_cats_sorted":["astro-ph.GA","gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-13T21:24:14Z","title_canon_sha256":"08744243b161724cf05ad5fa69a1fefb715a7b9da3f2724a570c03bcbba200b1"},"schema_version":"1.0","source":{"id":"2503.11721","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.11721","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"arxiv_version","alias_value":"2503.11721v2","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.11721","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"pith_short_12","alias_value":"ZB33UKT4C6YU","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"pith_short_16","alias_value":"ZB33UKT4C6YUJLCT","created_at":"2026-07-05T11:03:22Z"},{"alias_kind":"pith_short_8","alias_value":"ZB33UKT4","created_at":"2026-07-05T11:03:22Z"}],"graph_snapshots":[{"event_id":"sha256:b5a35d309d50ec54926dc0a7efa809f9eed821e7ca86a7ee538be8c19dc8ff53","target":"graph","created_at":"2026-07-05T11:03:22Z","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/2503.11721/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show that Laser Interferometer Space Antenna can uniquely identify the sites of intermediate-mass binary black hole (IMBBH) mergers if they occur in Active Galactic Nuclei (AGN) disks with a gas density $\\rho\\geq10^{-12} \\, {\\rm g/cc}$ via measurement of dynamical friction effect in the gravitational waveform. We find that even a single observation of a gravitational wave source with a total mass of $10^3 M_{\\odot}$ and a mass ratio of 2 at a luminosity distance of 3 Gpc is sufficient to confidently associate the merger to be in an AGN disk with a density $\\sim 10^{-12} \\, {\\rm g/cc}$, as i","authors_text":"Anuradha Samajdar, K. G. Arun, Parthapratim Mahapatra, Poulami Dutta Roy","cross_cats":["astro-ph.GA","gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-13T21:24:14Z","title":"Identifying intermediate mass binary black hole mergers in AGN disks using LISA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.11721","kind":"arxiv","version":2},"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":"sha256:2e3c3c5c62c3391fdc304ccf072dd27074cad241f386b8bf12265c80ffd3a714","target":"record","created_at":"2026-07-05T11:03:22Z","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":"d96362d3d9673eba54ed1820e21a83961479e1dda6d3cb7a97bc187409726813","cross_cats_sorted":["astro-ph.GA","gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-13T21:24:14Z","title_canon_sha256":"08744243b161724cf05ad5fa69a1fefb715a7b9da3f2724a570c03bcbba200b1"},"schema_version":"1.0","source":{"id":"2503.11721","kind":"arxiv","version":2}},"canonical_sha256":"c877ba2a7c17b144ac53f57b7ca81f903b7eaabc9dd68cc7d368279fe2abe63d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c877ba2a7c17b144ac53f57b7ca81f903b7eaabc9dd68cc7d368279fe2abe63d","first_computed_at":"2026-07-05T11:03:22.185402Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:03:22.185402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1wiHuSUao1imKsoYM7e01D7OGy+twloV+tHyU+0XTvHf+4bx3sdCCcEa95/kxvAAIt55rYQBWu50ExwRAiwhCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:03:22.185816Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.11721","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2e3c3c5c62c3391fdc304ccf072dd27074cad241f386b8bf12265c80ffd3a714","sha256:b5a35d309d50ec54926dc0a7efa809f9eed821e7ca86a7ee538be8c19dc8ff53"],"state_sha256":"64f53f2b95496bf084e2fd4266884a5b712b730112e3cda741c5907ffb102888"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5cNmaoGYhZNhVm3trbl/QjGmFUh7K4GO8e95KSq4B1bZenGDdqDNAbmwG+KoTZNtXeNTUfp8jI/ul2f5iW9iDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T16:49:56.807125Z","bundle_sha256":"463e5ca1d6a56a326e700998fa6628a2de061882bda6e6e9de6e75074697e9f7"}}