{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:QDQKU4J6WG4D47SK3WZT23B7G3","short_pith_number":"pith:QDQKU4J6","canonical_record":{"source":{"id":"1005.3398","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-05-19T10:12:34Z","cross_cats_sorted":[],"title_canon_sha256":"7fb662cd9134f4f7acb5c7f91c8abb9743b7baa9e32ea25c03e739dc43be3368","abstract_canon_sha256":"7b86a9823ce14ea04f62adf2e0a8eecec8d1a936ce9dfe481b4459252d105406"},"schema_version":"1.0"},"canonical_sha256":"80e0aa713eb1b83e7e4addb33d6c3f36f8a95734910826be0327e82ec5ba614d","source":{"kind":"arxiv","id":"1005.3398","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3398","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3398v1","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3398","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"pith_short_12","alias_value":"QDQKU4J6WG4D","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"QDQKU4J6WG4D47SK","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"QDQKU4J6","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:QDQKU4J6WG4D47SK3WZT23B7G3","target":"record","payload":{"canonical_record":{"source":{"id":"1005.3398","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-05-19T10:12:34Z","cross_cats_sorted":[],"title_canon_sha256":"7fb662cd9134f4f7acb5c7f91c8abb9743b7baa9e32ea25c03e739dc43be3368","abstract_canon_sha256":"7b86a9823ce14ea04f62adf2e0a8eecec8d1a936ce9dfe481b4459252d105406"},"schema_version":"1.0"},"canonical_sha256":"80e0aa713eb1b83e7e4addb33d6c3f36f8a95734910826be0327e82ec5ba614d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:07:17.038567Z","signature_b64":"S3nf+Aeq2QzX7sLyElKL4/T+QhmjwoADajmod/YA1f8YgUaLEhIgvwrC0CpiS96Lv2IiWS1hXnwc8ajp7qWpBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80e0aa713eb1b83e7e4addb33d6c3f36f8a95734910826be0327e82ec5ba614d","last_reissued_at":"2026-05-18T02:07:17.037779Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:07:17.037779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1005.3398","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":"2026-05-18T02:07:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I+z3f2GepsIrq9MQDAjLIOfn1y9cDWzpycqaqeZFRdHsdGS4NUOZv94RR9IrKI/n1Z6e8dCjC9Jswg4ojdbVCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T10:42:02.777571Z"},"content_sha256":"4acf4fb849d5cc2eb24188e5a97e2724d277c98ee32e0e67e83d1ec97ce98882","schema_version":"1.0","event_id":"sha256:4acf4fb849d5cc2eb24188e5a97e2724d277c98ee32e0e67e83d1ec97ce98882"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:QDQKU4J6WG4D47SK3WZT23B7G3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multi-wavelength observations of the helium dwarf nova KL Dra through its outburst cycle","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Chris Copperwheat (Warwick Univ), C. Simon Jeffery (Armagh), Danny Steeghs (Warwick), Gavin Ramsay (Armagh Observatory), Iwona Kotko (Jagiellonian University), Peter Wheatley (Warwick), Simon Rosen (Leicester Univ), Tom Barclay (Armagh, Tom Marsh (Warwick), UCL/MSSL)","submitted_at":"2010-05-19T10:12:34Z","abstract_excerpt":"We present multi-wavelength observations of the helium-dominated accreting binary KL Dra which has an orbital period of 25 mins. Our ground-based optical monitoring programme using the Liverpool Telescope has revealed KL Dra to show frequent outbursts. Although our coverage is not uniform, our observations are consistent with the outbursts recurring on a timescale of ~60 days. Observations made using Swift show that the outbursts occur with a similar amplitude at both UV and optical energies and a duration of 2 weeks. Although KL Dra is a weak X-ray source we find no significant evidence that "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3398","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":"2026-05-18T02:07:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FQYUeRa8X/EJFGglwSrFnOWzhft3GgkgJwjCHYz9s7wzCrmCKwJyswfORWguQOJeKSdn2aEFUtpPwdrWF4+WAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T10:42:02.777927Z"},"content_sha256":"344a1af60ed8d31cbdf85b53aadeefd625de24ee028d5f6ec7404f7d6ce16b3d","schema_version":"1.0","event_id":"sha256:344a1af60ed8d31cbdf85b53aadeefd625de24ee028d5f6ec7404f7d6ce16b3d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QDQKU4J6WG4D47SK3WZT23B7G3/bundle.json","state_url":"https://pith.science/pith/QDQKU4J6WG4D47SK3WZT23B7G3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QDQKU4J6WG4D47SK3WZT23B7G3/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":"2026-06-20T10:42:02Z","links":{"resolver":"https://pith.science/pith/QDQKU4J6WG4D47SK3WZT23B7G3","bundle":"https://pith.science/pith/QDQKU4J6WG4D47SK3WZT23B7G3/bundle.json","state":"https://pith.science/pith/QDQKU4J6WG4D47SK3WZT23B7G3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QDQKU4J6WG4D47SK3WZT23B7G3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:QDQKU4J6WG4D47SK3WZT23B7G3","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":"7b86a9823ce14ea04f62adf2e0a8eecec8d1a936ce9dfe481b4459252d105406","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-05-19T10:12:34Z","title_canon_sha256":"7fb662cd9134f4f7acb5c7f91c8abb9743b7baa9e32ea25c03e739dc43be3368"},"schema_version":"1.0","source":{"id":"1005.3398","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3398","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3398v1","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3398","created_at":"2026-05-18T02:07:17Z"},{"alias_kind":"pith_short_12","alias_value":"QDQKU4J6WG4D","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"QDQKU4J6WG4D47SK","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"QDQKU4J6","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:344a1af60ed8d31cbdf85b53aadeefd625de24ee028d5f6ec7404f7d6ce16b3d","target":"graph","created_at":"2026-05-18T02:07:17Z","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":"We present multi-wavelength observations of the helium-dominated accreting binary KL Dra which has an orbital period of 25 mins. Our ground-based optical monitoring programme using the Liverpool Telescope has revealed KL Dra to show frequent outbursts. Although our coverage is not uniform, our observations are consistent with the outbursts recurring on a timescale of ~60 days. Observations made using Swift show that the outbursts occur with a similar amplitude at both UV and optical energies and a duration of 2 weeks. Although KL Dra is a weak X-ray source we find no significant evidence that ","authors_text":"Chris Copperwheat (Warwick Univ), C. Simon Jeffery (Armagh), Danny Steeghs (Warwick), Gavin Ramsay (Armagh Observatory), Iwona Kotko (Jagiellonian University), Peter Wheatley (Warwick), Simon Rosen (Leicester Univ), Tom Barclay (Armagh, Tom Marsh (Warwick), UCL/MSSL)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-05-19T10:12:34Z","title":"Multi-wavelength observations of the helium dwarf nova KL Dra through its outburst cycle"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3398","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":"sha256:4acf4fb849d5cc2eb24188e5a97e2724d277c98ee32e0e67e83d1ec97ce98882","target":"record","created_at":"2026-05-18T02:07:17Z","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":"7b86a9823ce14ea04f62adf2e0a8eecec8d1a936ce9dfe481b4459252d105406","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-05-19T10:12:34Z","title_canon_sha256":"7fb662cd9134f4f7acb5c7f91c8abb9743b7baa9e32ea25c03e739dc43be3368"},"schema_version":"1.0","source":{"id":"1005.3398","kind":"arxiv","version":1}},"canonical_sha256":"80e0aa713eb1b83e7e4addb33d6c3f36f8a95734910826be0327e82ec5ba614d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80e0aa713eb1b83e7e4addb33d6c3f36f8a95734910826be0327e82ec5ba614d","first_computed_at":"2026-05-18T02:07:17.037779Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:17.037779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S3nf+Aeq2QzX7sLyElKL4/T+QhmjwoADajmod/YA1f8YgUaLEhIgvwrC0CpiS96Lv2IiWS1hXnwc8ajp7qWpBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:17.038567Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.3398","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4acf4fb849d5cc2eb24188e5a97e2724d277c98ee32e0e67e83d1ec97ce98882","sha256:344a1af60ed8d31cbdf85b53aadeefd625de24ee028d5f6ec7404f7d6ce16b3d"],"state_sha256":"f26c688c90964a4331c6da3afbf568952068897cbccb9465e6190f41713e5fb1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pW7M3Kj9Yqw2KKTTnch9f0ij5ChESbFCmRowqnbmEeSEPzBNbrVhjvp47Xx73+zigykNrM/tYVp4WPCPtOheCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T10:42:02.779880Z","bundle_sha256":"4e390aa236fdb01ed0ad03212cc3c00a326eac17dcab0672393b31366da18d8b"}}