{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:U5L2OG3UDS3QK2Q5JVESRUBT2L","short_pith_number":"pith:U5L2OG3U","canonical_record":{"source":{"id":"1312.5878","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-20T10:39:51Z","cross_cats_sorted":[],"title_canon_sha256":"9a05848cf8a317da9a2b5d15071104a6382ab4ea63705ca994af2c35d7706950","abstract_canon_sha256":"81af1a6bf6f01e44524623c6a77b1d3d9431c3f8a98e8c694cbcd09dad0405a8"},"schema_version":"1.0"},"canonical_sha256":"a757a71b741cb7056a1d4d4928d033d2db6577f8c03a4a85b65ca543b036f3cc","source":{"kind":"arxiv","id":"1312.5878","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.5878","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"arxiv_version","alias_value":"1312.5878v1","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.5878","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"pith_short_12","alias_value":"U5L2OG3UDS3Q","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"U5L2OG3UDS3QK2Q5","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"U5L2OG3U","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:U5L2OG3UDS3QK2Q5JVESRUBT2L","target":"record","payload":{"canonical_record":{"source":{"id":"1312.5878","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-20T10:39:51Z","cross_cats_sorted":[],"title_canon_sha256":"9a05848cf8a317da9a2b5d15071104a6382ab4ea63705ca994af2c35d7706950","abstract_canon_sha256":"81af1a6bf6f01e44524623c6a77b1d3d9431c3f8a98e8c694cbcd09dad0405a8"},"schema_version":"1.0"},"canonical_sha256":"a757a71b741cb7056a1d4d4928d033d2db6577f8c03a4a85b65ca543b036f3cc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:56:04.966912Z","signature_b64":"Ee1yNbsFXqPZlBmu2MnvSu5jSZ0tseqF8NAm5Y9NIXCIiu0Jai+lAVrJxluJwv/kaA1vojZLrHmMfwMgKMpQAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a757a71b741cb7056a1d4d4928d033d2db6577f8c03a4a85b65ca543b036f3cc","last_reissued_at":"2026-05-18T02:56:04.966464Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:56:04.966464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.5878","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":"2026-05-18T02:56:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KLrvDr8ZCTqAmmkaT5rbHnv4h/3Y7Para0Tm/R8QO7X9BvYycLe4klhJnixx1cpoP4bEPQTc6YrcbqmNOlfDDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:26:07.407742Z"},"content_sha256":"c8846d850a1d3aeca698f680a68f1120db5a5a6a2df93552782bba8512aef2c0","schema_version":"1.0","event_id":"sha256:c8846d850a1d3aeca698f680a68f1120db5a5a6a2df93552782bba8512aef2c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:U5L2OG3UDS3QK2Q5JVESRUBT2L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fifty Years of TT Arietis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"J. Smak","submitted_at":"2013-12-20T10:39:51Z","abstract_excerpt":"Results of photometric observations of the permanent negative superhumper TT Ari in 1961/62 and 1966 are presented. Together with data from the literature they are used to discuss the negative superhump amplitudes $A_{nSH}$ and the amplitudes $A_{beat}$ of the modulation with the beat period $P_{beat}$. Both amplitudes are shown to vary considerably from one season to another. Three correlations are found: (1) between $A_{nSH}$ and $A_{beat}$, (2) between $A_{nSH}$ and $P_{nSH}$, and (3) between $A_{beat}$ and $P_{beat}$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.5878","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":"2026-05-18T02:56:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1wJA2C7gev/sGK89Yr6yaLNQSQbEAGnuWjnkQWIFT2W6rkbnOMRtdPOK/fcUx1l/CMDlWh9EecuxrdBOabdwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:26:07.408498Z"},"content_sha256":"7391f706dda6bb9c81e7573669c6a6bdf9294e49614ed841311958b9fb009492","schema_version":"1.0","event_id":"sha256:7391f706dda6bb9c81e7573669c6a6bdf9294e49614ed841311958b9fb009492"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U5L2OG3UDS3QK2Q5JVESRUBT2L/bundle.json","state_url":"https://pith.science/pith/U5L2OG3UDS3QK2Q5JVESRUBT2L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U5L2OG3UDS3QK2Q5JVESRUBT2L/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":"2026-05-31T22:26:07Z","links":{"resolver":"https://pith.science/pith/U5L2OG3UDS3QK2Q5JVESRUBT2L","bundle":"https://pith.science/pith/U5L2OG3UDS3QK2Q5JVESRUBT2L/bundle.json","state":"https://pith.science/pith/U5L2OG3UDS3QK2Q5JVESRUBT2L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U5L2OG3UDS3QK2Q5JVESRUBT2L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:U5L2OG3UDS3QK2Q5JVESRUBT2L","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":"81af1a6bf6f01e44524623c6a77b1d3d9431c3f8a98e8c694cbcd09dad0405a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-20T10:39:51Z","title_canon_sha256":"9a05848cf8a317da9a2b5d15071104a6382ab4ea63705ca994af2c35d7706950"},"schema_version":"1.0","source":{"id":"1312.5878","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.5878","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"arxiv_version","alias_value":"1312.5878v1","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.5878","created_at":"2026-05-18T02:56:04Z"},{"alias_kind":"pith_short_12","alias_value":"U5L2OG3UDS3Q","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"U5L2OG3UDS3QK2Q5","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"U5L2OG3U","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:7391f706dda6bb9c81e7573669c6a6bdf9294e49614ed841311958b9fb009492","target":"graph","created_at":"2026-05-18T02:56:04Z","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":"Results of photometric observations of the permanent negative superhumper TT Ari in 1961/62 and 1966 are presented. Together with data from the literature they are used to discuss the negative superhump amplitudes $A_{nSH}$ and the amplitudes $A_{beat}$ of the modulation with the beat period $P_{beat}$. Both amplitudes are shown to vary considerably from one season to another. Three correlations are found: (1) between $A_{nSH}$ and $A_{beat}$, (2) between $A_{nSH}$ and $P_{nSH}$, and (3) between $A_{beat}$ and $P_{beat}$.","authors_text":"J. Smak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-20T10:39:51Z","title":"Fifty Years of TT Arietis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.5878","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:c8846d850a1d3aeca698f680a68f1120db5a5a6a2df93552782bba8512aef2c0","target":"record","created_at":"2026-05-18T02:56:04Z","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":"81af1a6bf6f01e44524623c6a77b1d3d9431c3f8a98e8c694cbcd09dad0405a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-12-20T10:39:51Z","title_canon_sha256":"9a05848cf8a317da9a2b5d15071104a6382ab4ea63705ca994af2c35d7706950"},"schema_version":"1.0","source":{"id":"1312.5878","kind":"arxiv","version":1}},"canonical_sha256":"a757a71b741cb7056a1d4d4928d033d2db6577f8c03a4a85b65ca543b036f3cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a757a71b741cb7056a1d4d4928d033d2db6577f8c03a4a85b65ca543b036f3cc","first_computed_at":"2026-05-18T02:56:04.966464Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:56:04.966464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ee1yNbsFXqPZlBmu2MnvSu5jSZ0tseqF8NAm5Y9NIXCIiu0Jai+lAVrJxluJwv/kaA1vojZLrHmMfwMgKMpQAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:56:04.966912Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.5878","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8846d850a1d3aeca698f680a68f1120db5a5a6a2df93552782bba8512aef2c0","sha256:7391f706dda6bb9c81e7573669c6a6bdf9294e49614ed841311958b9fb009492"],"state_sha256":"e768d0796e525d8648c22ff5e6ef9837f5deaee1f23650d148bace8f0b27bb24"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tyt1C/CToUtQEnjVm4VS5N8k7CZDGYVmjMLrGnqMBgh2VNoG7pEUc3yQxkZdyl0PpxxkjpqnOUAty4KOy/KwDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T22:26:07.413094Z","bundle_sha256":"55715d97467561963cd6e3b8c81a1669cdd91bb6b799fc646594e162749b4a01"}}