{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:W6IPDS2ZZNQWMKRA2HLEFT6HOM","short_pith_number":"pith:W6IPDS2Z","schema_version":"1.0","canonical_sha256":"b790f1cb59cb61662a20d1d642cfc773389718c5c7c14b22336dc1f0639ceb9c","source":{"kind":"arxiv","id":"1104.3868","version":2},"attestation_state":"computed","paper":{"title":"Limiting eccentricity of sub-parsec massive black hole binaries surrounded by self-gravitating gas discs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alberto Sesana, Constanze Roedig, Jorge Cuadra, Massimo Dotti, Monica Colpi","submitted_at":"2011-04-19T20:07:24Z","abstract_excerpt":"We study the dynamics of supermassive black hole binaries embedded in circumbinary gaseous discs, with the SPH code Gadget-2. The sub-parsec binary (of total mass M and mass ratio q=1/3) has excavated a gap and transfers its angular momentum to the self--gravitating disc (M_disc=0.2 M). We explore the changes of the binary eccentricity e, by simulating a sequence of binary models that differ in the initial eccentricity e_0, only. In initially low-eccentric binaries, the eccentricity increases with time, while in high-eccentric binaries e declines, indicating the existence of a limiting eccentr"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1104.3868","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-19T20:07:24Z","cross_cats_sorted":[],"title_canon_sha256":"b74f848b3fc8d837c1f757ae8b6adcc0d1e12569be20b906191b07328212c7e6","abstract_canon_sha256":"e427f2d0dcfb28945e6c2f3291e592441f014657a9518cde0b7dd1456bb1efa8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:22.438488Z","signature_b64":"22KfbuJyuPiQjt2AVjmDDd2LxP2x4Mzlpq615Z91kv0LL25joUio0Ssfu287bV1cmXfLRFL+G/ZK4Ai8IJn2CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b790f1cb59cb61662a20d1d642cfc773389718c5c7c14b22336dc1f0639ceb9c","last_reissued_at":"2026-05-18T02:02:22.437627Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:22.437627Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Limiting eccentricity of sub-parsec massive black hole binaries surrounded by self-gravitating gas discs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alberto Sesana, Constanze Roedig, Jorge Cuadra, Massimo Dotti, Monica Colpi","submitted_at":"2011-04-19T20:07:24Z","abstract_excerpt":"We study the dynamics of supermassive black hole binaries embedded in circumbinary gaseous discs, with the SPH code Gadget-2. The sub-parsec binary (of total mass M and mass ratio q=1/3) has excavated a gap and transfers its angular momentum to the self--gravitating disc (M_disc=0.2 M). We explore the changes of the binary eccentricity e, by simulating a sequence of binary models that differ in the initial eccentricity e_0, only. In initially low-eccentric binaries, the eccentricity increases with time, while in high-eccentric binaries e declines, indicating the existence of a limiting eccentr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3868","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1104.3868","created_at":"2026-05-18T02:02:22.437850+00:00"},{"alias_kind":"arxiv_version","alias_value":"1104.3868v2","created_at":"2026-05-18T02:02:22.437850+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3868","created_at":"2026-05-18T02:02:22.437850+00:00"},{"alias_kind":"pith_short_12","alias_value":"W6IPDS2ZZNQW","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_16","alias_value":"W6IPDS2ZZNQWMKRA","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_8","alias_value":"W6IPDS2Z","created_at":"2026-05-18T12:26:44.992195+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.05537","citing_title":"Implications of the LISA stochastic signal from eccentric stellar mass black hole binaries in vacuum","ref_index":71,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/W6IPDS2ZZNQWMKRA2HLEFT6HOM","json":"https://pith.science/pith/W6IPDS2ZZNQWMKRA2HLEFT6HOM.json","graph_json":"https://pith.science/api/pith-number/W6IPDS2ZZNQWMKRA2HLEFT6HOM/graph.json","events_json":"https://pith.science/api/pith-number/W6IPDS2ZZNQWMKRA2HLEFT6HOM/events.json","paper":"https://pith.science/paper/W6IPDS2Z"},"agent_actions":{"view_html":"https://pith.science/pith/W6IPDS2ZZNQWMKRA2HLEFT6HOM","download_json":"https://pith.science/pith/W6IPDS2ZZNQWMKRA2HLEFT6HOM.json","view_paper":"https://pith.science/paper/W6IPDS2Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1104.3868&json=true","fetch_graph":"https://pith.science/api/pith-number/W6IPDS2ZZNQWMKRA2HLEFT6HOM/graph.json","fetch_events":"https://pith.science/api/pith-number/W6IPDS2ZZNQWMKRA2HLEFT6HOM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/W6IPDS2ZZNQWMKRA2HLEFT6HOM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/W6IPDS2ZZNQWMKRA2HLEFT6HOM/action/storage_attestation","attest_author":"https://pith.science/pith/W6IPDS2ZZNQWMKRA2HLEFT6HOM/action/author_attestation","sign_citation":"https://pith.science/pith/W6IPDS2ZZNQWMKRA2HLEFT6HOM/action/citation_signature","submit_replication":"https://pith.science/pith/W6IPDS2ZZNQWMKRA2HLEFT6HOM/action/replication_record"}},"created_at":"2026-05-18T02:02:22.437850+00:00","updated_at":"2026-05-18T02:02:22.437850+00:00"}