{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KUHROFZE3ZMDIPWEEU5FHDFXYI","short_pith_number":"pith:KUHROFZE","canonical_record":{"source":{"id":"1307.5685","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2013-07-22T12:53:10Z","cross_cats_sorted":[],"title_canon_sha256":"02b7b3864040366f587d78564647267e5eed37af10a56547aa7e1e642358dfe9","abstract_canon_sha256":"2d8a84c852b6d0ff92a6b3b5e9ee0f5f53ce322c0463578d168e330e6c6a15f0"},"schema_version":"1.0"},"canonical_sha256":"550f171724de58343ec4253a538cb7c21b2ffc9c660021d90ac276bc3aafcf6b","source":{"kind":"arxiv","id":"1307.5685","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5685","created_at":"2026-05-18T03:17:54Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5685v1","created_at":"2026-05-18T03:17:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5685","created_at":"2026-05-18T03:17:54Z"},{"alias_kind":"pith_short_12","alias_value":"KUHROFZE3ZMD","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KUHROFZE3ZMDIPWE","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KUHROFZE","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KUHROFZE3ZMDIPWEEU5FHDFXYI","target":"record","payload":{"canonical_record":{"source":{"id":"1307.5685","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2013-07-22T12:53:10Z","cross_cats_sorted":[],"title_canon_sha256":"02b7b3864040366f587d78564647267e5eed37af10a56547aa7e1e642358dfe9","abstract_canon_sha256":"2d8a84c852b6d0ff92a6b3b5e9ee0f5f53ce322c0463578d168e330e6c6a15f0"},"schema_version":"1.0"},"canonical_sha256":"550f171724de58343ec4253a538cb7c21b2ffc9c660021d90ac276bc3aafcf6b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:17:54.966970Z","signature_b64":"Xtxzo7H3SHD7FGkyG+giveXnWvKUss3vIM2SHYD4XUMu20qXo0zXTSa0yxRpHF1HumcxRPkAxILxoLSVD2pyCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"550f171724de58343ec4253a538cb7c21b2ffc9c660021d90ac276bc3aafcf6b","last_reissued_at":"2026-05-18T03:17:54.966297Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:17:54.966297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.5685","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":"2026-05-18T03:17:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0dsrJ3G7eysSmyuZoH/bmaVrbDrsXRPWMHm9rPAFEnjEmTu3XnCTldqwuVFhR+W196MV1+R0SFvNGgKKMACWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T03:41:33.784054Z"},"content_sha256":"cf1f6020a8e1137221067a10cca7adec166a5ae0878c769a3df0c3c36241e8ac","schema_version":"1.0","event_id":"sha256:cf1f6020a8e1137221067a10cca7adec166a5ae0878c769a3df0c3c36241e8ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KUHROFZE3ZMDIPWEEU5FHDFXYI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Evaluation of Caching Policies for Memento TimeMaps","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DL","authors_text":"Justin F. Brunelle, Michael L. Nelson","submitted_at":"2013-07-22T12:53:10Z","abstract_excerpt":"As defined by the Memento Framework, TimeMaps are ma-chine-readable lists of time-specific copies -- called \"mementos\" -- of an archived original resource. In theory, as an archive acquires additional mementos over time, a TimeMap should be monotonically increasing. However, there are reasons why the number of mementos in a TimeMap would decrease, for example: archival redaction of some or all of the mementos, archival restructuring, and transient errors on the part of one or more archives. We study TimeMaps for 4,000 original resources over a three month period, note their change patterns, an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5685","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":"2026-05-18T03:17:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"20ytCPWrSicKA+SoV9lmlZ0nAZkK6ko2lKYN88HaN4sX2iKp3r94mG/XET7KOlq23diq3sF90iaJp5GqeX9cAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T03:41:33.784415Z"},"content_sha256":"564071e24752f815895b67b26f617b88d0e965e7cf74c983a990fc29b34c8b3d","schema_version":"1.0","event_id":"sha256:564071e24752f815895b67b26f617b88d0e965e7cf74c983a990fc29b34c8b3d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KUHROFZE3ZMDIPWEEU5FHDFXYI/bundle.json","state_url":"https://pith.science/pith/KUHROFZE3ZMDIPWEEU5FHDFXYI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KUHROFZE3ZMDIPWEEU5FHDFXYI/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":"2026-06-25T03:41:33Z","links":{"resolver":"https://pith.science/pith/KUHROFZE3ZMDIPWEEU5FHDFXYI","bundle":"https://pith.science/pith/KUHROFZE3ZMDIPWEEU5FHDFXYI/bundle.json","state":"https://pith.science/pith/KUHROFZE3ZMDIPWEEU5FHDFXYI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KUHROFZE3ZMDIPWEEU5FHDFXYI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KUHROFZE3ZMDIPWEEU5FHDFXYI","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":"2d8a84c852b6d0ff92a6b3b5e9ee0f5f53ce322c0463578d168e330e6c6a15f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2013-07-22T12:53:10Z","title_canon_sha256":"02b7b3864040366f587d78564647267e5eed37af10a56547aa7e1e642358dfe9"},"schema_version":"1.0","source":{"id":"1307.5685","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5685","created_at":"2026-05-18T03:17:54Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5685v1","created_at":"2026-05-18T03:17:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5685","created_at":"2026-05-18T03:17:54Z"},{"alias_kind":"pith_short_12","alias_value":"KUHROFZE3ZMD","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KUHROFZE3ZMDIPWE","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KUHROFZE","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:564071e24752f815895b67b26f617b88d0e965e7cf74c983a990fc29b34c8b3d","target":"graph","created_at":"2026-05-18T03:17:54Z","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":"As defined by the Memento Framework, TimeMaps are ma-chine-readable lists of time-specific copies -- called \"mementos\" -- of an archived original resource. In theory, as an archive acquires additional mementos over time, a TimeMap should be monotonically increasing. However, there are reasons why the number of mementos in a TimeMap would decrease, for example: archival redaction of some or all of the mementos, archival restructuring, and transient errors on the part of one or more archives. We study TimeMaps for 4,000 original resources over a three month period, note their change patterns, an","authors_text":"Justin F. Brunelle, Michael L. Nelson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2013-07-22T12:53:10Z","title":"An Evaluation of Caching Policies for Memento TimeMaps"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5685","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:cf1f6020a8e1137221067a10cca7adec166a5ae0878c769a3df0c3c36241e8ac","target":"record","created_at":"2026-05-18T03:17:54Z","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":"2d8a84c852b6d0ff92a6b3b5e9ee0f5f53ce322c0463578d168e330e6c6a15f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2013-07-22T12:53:10Z","title_canon_sha256":"02b7b3864040366f587d78564647267e5eed37af10a56547aa7e1e642358dfe9"},"schema_version":"1.0","source":{"id":"1307.5685","kind":"arxiv","version":1}},"canonical_sha256":"550f171724de58343ec4253a538cb7c21b2ffc9c660021d90ac276bc3aafcf6b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"550f171724de58343ec4253a538cb7c21b2ffc9c660021d90ac276bc3aafcf6b","first_computed_at":"2026-05-18T03:17:54.966297Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:17:54.966297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Xtxzo7H3SHD7FGkyG+giveXnWvKUss3vIM2SHYD4XUMu20qXo0zXTSa0yxRpHF1HumcxRPkAxILxoLSVD2pyCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:17:54.966970Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.5685","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf1f6020a8e1137221067a10cca7adec166a5ae0878c769a3df0c3c36241e8ac","sha256:564071e24752f815895b67b26f617b88d0e965e7cf74c983a990fc29b34c8b3d"],"state_sha256":"9dcdb2d7c016f77df12f3ac320b4b4baa1b90cd13b37ff808d282b012580e3b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1h5ANxV+RTt9BAhRBoDhfenf6fLwgWodCmM7V3aCFWL9y5mSAPwmx+hsARWsrQ4UKD3aGg5rBz+sPPPEqhXEDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T03:41:33.786402Z","bundle_sha256":"50de5e6f2c9a42ac7466c8debe95ca53d0666e0a649ce4103df1c0e3efdb0124"}}