{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XBBFYOQ3CCLH4LRHDNL4JNUF6Q","short_pith_number":"pith:XBBFYOQ3","canonical_record":{"source":{"id":"1810.12651","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-10-30T11:02:25Z","cross_cats_sorted":[],"title_canon_sha256":"47324342dea9a38cdd741530861771442fa39836426fdc16e212af46caf4cc6d","abstract_canon_sha256":"b29d47c55b00d7cb2e18a5d19506166024d488d890b9b9d535e43ac6a0bf3a3e"},"schema_version":"1.0"},"canonical_sha256":"b8425c3a1b10967e2e271b57c4b685f40144e282c6b5f93ffa0d5fb77ae0a396","source":{"kind":"arxiv","id":"1810.12651","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.12651","created_at":"2026-05-18T00:01:56Z"},{"alias_kind":"arxiv_version","alias_value":"1810.12651v1","created_at":"2026-05-18T00:01:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12651","created_at":"2026-05-18T00:01:56Z"},{"alias_kind":"pith_short_12","alias_value":"XBBFYOQ3CCLH","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XBBFYOQ3CCLH4LRH","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XBBFYOQ3","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XBBFYOQ3CCLH4LRHDNL4JNUF6Q","target":"record","payload":{"canonical_record":{"source":{"id":"1810.12651","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-10-30T11:02:25Z","cross_cats_sorted":[],"title_canon_sha256":"47324342dea9a38cdd741530861771442fa39836426fdc16e212af46caf4cc6d","abstract_canon_sha256":"b29d47c55b00d7cb2e18a5d19506166024d488d890b9b9d535e43ac6a0bf3a3e"},"schema_version":"1.0"},"canonical_sha256":"b8425c3a1b10967e2e271b57c4b685f40144e282c6b5f93ffa0d5fb77ae0a396","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:56.387364Z","signature_b64":"74oK2JkY0z8ZkhO9KgP9mpBhw3RS56PqPd/oqrMq0Ee0DuDwKOzJtzPVXs7Rj064xIPIcZN+iK7H1r0M4Ag8Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8425c3a1b10967e2e271b57c4b685f40144e282c6b5f93ffa0d5fb77ae0a396","last_reissued_at":"2026-05-18T00:01:56.386736Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:56.386736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.12651","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":"2026-05-18T00:01:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EyVx0+1UgkDUYUYc6mmoTK3xm0wbQiv2eDOkR/zP1VGNt0Vjw/KA4aZ39/7j9r7gurLxdJP9R3AEYPZcKosKDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:13:54.422453Z"},"content_sha256":"dcde99f6103b6788849ea7a9a5a80c9cd5f9600321a44f839273d5f0e62b187d","schema_version":"1.0","event_id":"sha256:dcde99f6103b6788849ea7a9a5a80c9cd5f9600321a44f839273d5f0e62b187d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XBBFYOQ3CCLH4LRHDNL4JNUF6Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Refrain from adopting the combination of citation and journal metrics to grade publications, as used in the Italian national research assessment exercise (VQR 2011-2014)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DL","authors_text":"Ciriaco Andrea D'Angelo, Giovanni Abramo","submitted_at":"2018-10-30T11:02:25Z","abstract_excerpt":"The prediction of the long-term impact of a scientific article is challenging task, addressed by the bibliometrician through resorting to a proxy whose reliability increases with the breadth of the citation window. In the national research assessment exercises using metrics the citation window is necessarily short, but in some cases is sufficient to advise the use of simple citations. For the Italian VQR 2011-2014, the choice was instead made to adopt a linear weighted combination of citations and journal metric percentiles, with weights differentiated by discipline and year. Given the strateg"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12651","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":"2026-05-18T00:01:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d3edN1UEjIR5vgoS83rffXLbRdEJiNdT98gXgwXrKErPj3jim498Ao2hP1qQ93DrBCElOnt66DmWRmBMQ/GODw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:13:54.423179Z"},"content_sha256":"a86722e72d106ffa2a3b8b0cd022e9b319c05edddc7491d9723755b004091b8e","schema_version":"1.0","event_id":"sha256:a86722e72d106ffa2a3b8b0cd022e9b319c05edddc7491d9723755b004091b8e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XBBFYOQ3CCLH4LRHDNL4JNUF6Q/bundle.json","state_url":"https://pith.science/pith/XBBFYOQ3CCLH4LRHDNL4JNUF6Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XBBFYOQ3CCLH4LRHDNL4JNUF6Q/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":"2026-06-10T13:13:54Z","links":{"resolver":"https://pith.science/pith/XBBFYOQ3CCLH4LRHDNL4JNUF6Q","bundle":"https://pith.science/pith/XBBFYOQ3CCLH4LRHDNL4JNUF6Q/bundle.json","state":"https://pith.science/pith/XBBFYOQ3CCLH4LRHDNL4JNUF6Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XBBFYOQ3CCLH4LRHDNL4JNUF6Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XBBFYOQ3CCLH4LRHDNL4JNUF6Q","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":"b29d47c55b00d7cb2e18a5d19506166024d488d890b9b9d535e43ac6a0bf3a3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-10-30T11:02:25Z","title_canon_sha256":"47324342dea9a38cdd741530861771442fa39836426fdc16e212af46caf4cc6d"},"schema_version":"1.0","source":{"id":"1810.12651","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.12651","created_at":"2026-05-18T00:01:56Z"},{"alias_kind":"arxiv_version","alias_value":"1810.12651v1","created_at":"2026-05-18T00:01:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12651","created_at":"2026-05-18T00:01:56Z"},{"alias_kind":"pith_short_12","alias_value":"XBBFYOQ3CCLH","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XBBFYOQ3CCLH4LRH","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XBBFYOQ3","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:a86722e72d106ffa2a3b8b0cd022e9b319c05edddc7491d9723755b004091b8e","target":"graph","created_at":"2026-05-18T00:01:56Z","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":"The prediction of the long-term impact of a scientific article is challenging task, addressed by the bibliometrician through resorting to a proxy whose reliability increases with the breadth of the citation window. In the national research assessment exercises using metrics the citation window is necessarily short, but in some cases is sufficient to advise the use of simple citations. For the Italian VQR 2011-2014, the choice was instead made to adopt a linear weighted combination of citations and journal metric percentiles, with weights differentiated by discipline and year. Given the strateg","authors_text":"Ciriaco Andrea D'Angelo, Giovanni Abramo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-10-30T11:02:25Z","title":"Refrain from adopting the combination of citation and journal metrics to grade publications, as used in the Italian national research assessment exercise (VQR 2011-2014)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12651","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:dcde99f6103b6788849ea7a9a5a80c9cd5f9600321a44f839273d5f0e62b187d","target":"record","created_at":"2026-05-18T00:01:56Z","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":"b29d47c55b00d7cb2e18a5d19506166024d488d890b9b9d535e43ac6a0bf3a3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2018-10-30T11:02:25Z","title_canon_sha256":"47324342dea9a38cdd741530861771442fa39836426fdc16e212af46caf4cc6d"},"schema_version":"1.0","source":{"id":"1810.12651","kind":"arxiv","version":1}},"canonical_sha256":"b8425c3a1b10967e2e271b57c4b685f40144e282c6b5f93ffa0d5fb77ae0a396","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8425c3a1b10967e2e271b57c4b685f40144e282c6b5f93ffa0d5fb77ae0a396","first_computed_at":"2026-05-18T00:01:56.386736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:56.386736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"74oK2JkY0z8ZkhO9KgP9mpBhw3RS56PqPd/oqrMq0Ee0DuDwKOzJtzPVXs7Rj064xIPIcZN+iK7H1r0M4Ag8Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:56.387364Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.12651","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dcde99f6103b6788849ea7a9a5a80c9cd5f9600321a44f839273d5f0e62b187d","sha256:a86722e72d106ffa2a3b8b0cd022e9b319c05edddc7491d9723755b004091b8e"],"state_sha256":"2a46beb3bbce603df107df4cca1b802a240b915a855ccecbf19a0e6588012ebc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j9R3Ez6dn2YiFOQq2okDXgtsPU8iVpGqIPNhE9f4Yta63/iTK00TqdGObeJHEgpmZlv57pSK44EfM9HIt90FBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T13:13:54.427156Z","bundle_sha256":"4ed9a121fd1b9ba777faac0c2386af52b257edbbd6095bc37652bbaf1e7faf7f"}}