{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:L4EQ7SID6DDG6JGQUCPLS4ICMQ","short_pith_number":"pith:L4EQ7SID","canonical_record":{"source":{"id":"1101.2680","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-01-13T21:33:55Z","cross_cats_sorted":[],"title_canon_sha256":"92dc51610559516422511174859b50723839828fd7273a0027c09c8e0d9c03ba","abstract_canon_sha256":"59d952bffac1f3ed929423e93eef31445f6a2e6d38e81f6ab46dbbd37762a64e"},"schema_version":"1.0"},"canonical_sha256":"5f090fc903f0c66f24d0a09eb971026411335eb1dc7f73d068e13a8dd8f81db8","source":{"kind":"arxiv","id":"1101.2680","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2680","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2680v1","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2680","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"pith_short_12","alias_value":"L4EQ7SID6DDG","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L4EQ7SID6DDG6JGQ","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L4EQ7SID","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:L4EQ7SID6DDG6JGQUCPLS4ICMQ","target":"record","payload":{"canonical_record":{"source":{"id":"1101.2680","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-01-13T21:33:55Z","cross_cats_sorted":[],"title_canon_sha256":"92dc51610559516422511174859b50723839828fd7273a0027c09c8e0d9c03ba","abstract_canon_sha256":"59d952bffac1f3ed929423e93eef31445f6a2e6d38e81f6ab46dbbd37762a64e"},"schema_version":"1.0"},"canonical_sha256":"5f090fc903f0c66f24d0a09eb971026411335eb1dc7f73d068e13a8dd8f81db8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:40.139482Z","signature_b64":"WGXcnWdArp/f1p/nPugddV1nLgjAZHiUcRL20LJQkmlLyXTgvK75/Dll+Z29LaOt0xGMbOSleapYlSPAF4dZDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f090fc903f0c66f24d0a09eb971026411335eb1dc7f73d068e13a8dd8f81db8","last_reissued_at":"2026-05-18T02:03:40.138785Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:40.138785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.2680","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":"2026-05-18T02:03:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ux/p9PGu6UUWGlDOAHjOAT5YYmhDcPwc9P9M6QqAgOPvbfebTyWlaoXWUDzxkRnxernxLZRo4Pp74MKN0S8kCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T08:48:38.887271Z"},"content_sha256":"9dbee17f04eae82320de69a9fe86f56b264069b8ef5ade798f10c36bb5769c14","schema_version":"1.0","event_id":"sha256:9dbee17f04eae82320de69a9fe86f56b264069b8ef5ade798f10c36bb5769c14"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:L4EQ7SID6DDG6JGQUCPLS4ICMQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Possible twin kHz Quasi Periodic Oscillations in the accreting millisecond X-ray Pulsar IGR J17511-3057","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Diego Altamirano, Maithili Kalamkar, M. van der Klis","submitted_at":"2011-01-13T21:33:55Z","abstract_excerpt":"We report on the aperiodic X-ray timing and color behavior of the accreting millisecond X-ray pulsar (AMXP) IGR J17511-3057, using all the pointed observations obtained with the Rossi X-ray Timing Explorer Proportional Counter Array since the source's discovery on 2009 September 12. The source can be classified as an atoll source on the basis of the color and timing characteristics. It was in the hard state during the entire outburst. In the beginning and at the end of the outburst, the source exhibited what appear to be twin kHz quasi periodic oscillations (QPOs). The separation \\Delta \\nu be"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2680","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":"2026-05-18T02:03:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PTJ3OkPqVvlaFGf3xQsObhR94eI8akd1hty7ku24DU6GeKBJMhqbcUQqYbSxBWg/7Q0z7OHKSlEuWSWFRsMyDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T08:48:38.887894Z"},"content_sha256":"2bd3c52bfb87cff0607b4f898ff614a97d21258aa42013002e44cb2d1b10e9d2","schema_version":"1.0","event_id":"sha256:2bd3c52bfb87cff0607b4f898ff614a97d21258aa42013002e44cb2d1b10e9d2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L4EQ7SID6DDG6JGQUCPLS4ICMQ/bundle.json","state_url":"https://pith.science/pith/L4EQ7SID6DDG6JGQUCPLS4ICMQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L4EQ7SID6DDG6JGQUCPLS4ICMQ/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":"2026-06-06T08:48:38Z","links":{"resolver":"https://pith.science/pith/L4EQ7SID6DDG6JGQUCPLS4ICMQ","bundle":"https://pith.science/pith/L4EQ7SID6DDG6JGQUCPLS4ICMQ/bundle.json","state":"https://pith.science/pith/L4EQ7SID6DDG6JGQUCPLS4ICMQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L4EQ7SID6DDG6JGQUCPLS4ICMQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:L4EQ7SID6DDG6JGQUCPLS4ICMQ","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":"59d952bffac1f3ed929423e93eef31445f6a2e6d38e81f6ab46dbbd37762a64e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-01-13T21:33:55Z","title_canon_sha256":"92dc51610559516422511174859b50723839828fd7273a0027c09c8e0d9c03ba"},"schema_version":"1.0","source":{"id":"1101.2680","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2680","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2680v1","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2680","created_at":"2026-05-18T02:03:40Z"},{"alias_kind":"pith_short_12","alias_value":"L4EQ7SID6DDG","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L4EQ7SID6DDG6JGQ","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L4EQ7SID","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:2bd3c52bfb87cff0607b4f898ff614a97d21258aa42013002e44cb2d1b10e9d2","target":"graph","created_at":"2026-05-18T02:03:40Z","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 report on the aperiodic X-ray timing and color behavior of the accreting millisecond X-ray pulsar (AMXP) IGR J17511-3057, using all the pointed observations obtained with the Rossi X-ray Timing Explorer Proportional Counter Array since the source's discovery on 2009 September 12. The source can be classified as an atoll source on the basis of the color and timing characteristics. It was in the hard state during the entire outburst. In the beginning and at the end of the outburst, the source exhibited what appear to be twin kHz quasi periodic oscillations (QPOs). The separation \\Delta \\nu be","authors_text":"Diego Altamirano, Maithili Kalamkar, M. van der Klis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-01-13T21:33:55Z","title":"Possible twin kHz Quasi Periodic Oscillations in the accreting millisecond X-ray Pulsar IGR J17511-3057"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2680","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":"sha256:9dbee17f04eae82320de69a9fe86f56b264069b8ef5ade798f10c36bb5769c14","target":"record","created_at":"2026-05-18T02:03:40Z","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":"59d952bffac1f3ed929423e93eef31445f6a2e6d38e81f6ab46dbbd37762a64e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-01-13T21:33:55Z","title_canon_sha256":"92dc51610559516422511174859b50723839828fd7273a0027c09c8e0d9c03ba"},"schema_version":"1.0","source":{"id":"1101.2680","kind":"arxiv","version":1}},"canonical_sha256":"5f090fc903f0c66f24d0a09eb971026411335eb1dc7f73d068e13a8dd8f81db8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f090fc903f0c66f24d0a09eb971026411335eb1dc7f73d068e13a8dd8f81db8","first_computed_at":"2026-05-18T02:03:40.138785Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:40.138785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WGXcnWdArp/f1p/nPugddV1nLgjAZHiUcRL20LJQkmlLyXTgvK75/Dll+Z29LaOt0xGMbOSleapYlSPAF4dZDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:40.139482Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.2680","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9dbee17f04eae82320de69a9fe86f56b264069b8ef5ade798f10c36bb5769c14","sha256:2bd3c52bfb87cff0607b4f898ff614a97d21258aa42013002e44cb2d1b10e9d2"],"state_sha256":"007e069b7ae2cd8d9ef426d2485d9214f1ac807d977487f6107483704f56f07d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GrSpkgYeF/Z3JC2fyBquA0psUaQO6bPsDBiDblQmFT000E8I/0l+vBoUvfgOWfgdgCS2FpvejnBq3kEQ1nfBDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T08:48:38.891638Z","bundle_sha256":"cb8b0c397355de4a63541a80ea3a0cebf2c6354da072943b51859f045289b940"}}