{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:UN7HDDZVD7LE3YCUDOCZC62ONB","short_pith_number":"pith:UN7HDDZV","canonical_record":{"source":{"id":"1512.04841","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2015-12-15T16:22:11Z","cross_cats_sorted":[],"title_canon_sha256":"9ec2819be9942b1fb41e3903dc95d45574c9d24d30b77d2e7af1d981de4061b4","abstract_canon_sha256":"73c0a593823e1241be18c7c35fe5e7671cea487d1c5a465adf132c742bfe9361"},"schema_version":"1.0"},"canonical_sha256":"a37e718f351fd64de0541b85917b4e68568b65b806a2dc45fc3942ec1c35d3db","source":{"kind":"arxiv","id":"1512.04841","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.04841","created_at":"2026-05-18T01:04:28Z"},{"alias_kind":"arxiv_version","alias_value":"1512.04841v1","created_at":"2026-05-18T01:04:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.04841","created_at":"2026-05-18T01:04:28Z"},{"alias_kind":"pith_short_12","alias_value":"UN7HDDZVD7LE","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UN7HDDZVD7LE3YCU","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UN7HDDZV","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:UN7HDDZVD7LE3YCUDOCZC62ONB","target":"record","payload":{"canonical_record":{"source":{"id":"1512.04841","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2015-12-15T16:22:11Z","cross_cats_sorted":[],"title_canon_sha256":"9ec2819be9942b1fb41e3903dc95d45574c9d24d30b77d2e7af1d981de4061b4","abstract_canon_sha256":"73c0a593823e1241be18c7c35fe5e7671cea487d1c5a465adf132c742bfe9361"},"schema_version":"1.0"},"canonical_sha256":"a37e718f351fd64de0541b85917b4e68568b65b806a2dc45fc3942ec1c35d3db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:28.275052Z","signature_b64":"0u5xqAPmJY2FNKzrJskgmZs0IREqy3W6tbsgTJeQkTxI/H6sCuv3Iabk9I9guNUyFid27U8IiVNCDLwiIVLhDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a37e718f351fd64de0541b85917b4e68568b65b806a2dc45fc3942ec1c35d3db","last_reissued_at":"2026-05-18T01:04:28.274518Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:28.274518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.04841","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":"2026-05-18T01:04:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mmWHKF8Dalhx9OrbHmr/71i1t4Xq2JQkvnNqm874pxzG6F7JMBNXqyIPzL16TIuHC/80qUmxjC3bc6+iNOtkAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:37:17.744754Z"},"content_sha256":"6c52102541126f8474d81f5b84c1311544da5942d4aece71af9c1578c80308e4","schema_version":"1.0","event_id":"sha256:6c52102541126f8474d81f5b84c1311544da5942d4aece71af9c1578c80308e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:UN7HDDZVD7LE3YCUDOCZC62ONB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ab-initio modeling of an anion $C_{60}^-$ pseudopotential for fullerene-based compounds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atm-clus","authors_text":"2), (2) Science Institute, Iceland (3) Peter the Great Saint-Petersburg Polytechnic University, I. I. Vrubel (1), Reykjavik, R. G. Polozkov (1, Russia, Russia), St. Petersburg, University of Iceland, V. K. Ivanov (3) ((1) ITMO University","submitted_at":"2015-12-15T16:22:11Z","abstract_excerpt":"A pseudopotential of $C_{60}^-$ has been constructed from ab-initio quantum-mechanical calculations. Since the obtained pseudopotential can be easily fitted by rather simple analytical approximation it can be effectively used both in classical and quantum molecular dynamics of fullerene-based compounds."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.04841","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":"2026-05-18T01:04:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oKLiD/YZBDyQvlLNBuSgxt4hn6gZH0hi//fgCiCjBGpLg5j7Ojnyxr6a2vSxP537p2rU9TrkigHSpfzOjwuYAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:37:17.745103Z"},"content_sha256":"f179578b06f009854fcc10a9e528ea1a2e5b95de0c2357f8cf1733da99c4d041","schema_version":"1.0","event_id":"sha256:f179578b06f009854fcc10a9e528ea1a2e5b95de0c2357f8cf1733da99c4d041"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UN7HDDZVD7LE3YCUDOCZC62ONB/bundle.json","state_url":"https://pith.science/pith/UN7HDDZVD7LE3YCUDOCZC62ONB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UN7HDDZVD7LE3YCUDOCZC62ONB/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":"2026-05-28T07:37:17Z","links":{"resolver":"https://pith.science/pith/UN7HDDZVD7LE3YCUDOCZC62ONB","bundle":"https://pith.science/pith/UN7HDDZVD7LE3YCUDOCZC62ONB/bundle.json","state":"https://pith.science/pith/UN7HDDZVD7LE3YCUDOCZC62ONB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UN7HDDZVD7LE3YCUDOCZC62ONB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UN7HDDZVD7LE3YCUDOCZC62ONB","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":"73c0a593823e1241be18c7c35fe5e7671cea487d1c5a465adf132c742bfe9361","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2015-12-15T16:22:11Z","title_canon_sha256":"9ec2819be9942b1fb41e3903dc95d45574c9d24d30b77d2e7af1d981de4061b4"},"schema_version":"1.0","source":{"id":"1512.04841","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.04841","created_at":"2026-05-18T01:04:28Z"},{"alias_kind":"arxiv_version","alias_value":"1512.04841v1","created_at":"2026-05-18T01:04:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.04841","created_at":"2026-05-18T01:04:28Z"},{"alias_kind":"pith_short_12","alias_value":"UN7HDDZVD7LE","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UN7HDDZVD7LE3YCU","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UN7HDDZV","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:f179578b06f009854fcc10a9e528ea1a2e5b95de0c2357f8cf1733da99c4d041","target":"graph","created_at":"2026-05-18T01:04:28Z","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":"A pseudopotential of $C_{60}^-$ has been constructed from ab-initio quantum-mechanical calculations. Since the obtained pseudopotential can be easily fitted by rather simple analytical approximation it can be effectively used both in classical and quantum molecular dynamics of fullerene-based compounds.","authors_text":"2), (2) Science Institute, Iceland (3) Peter the Great Saint-Petersburg Polytechnic University, I. I. Vrubel (1), Reykjavik, R. G. Polozkov (1, Russia, Russia), St. Petersburg, University of Iceland, V. K. Ivanov (3) ((1) ITMO University","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2015-12-15T16:22:11Z","title":"Ab-initio modeling of an anion $C_{60}^-$ pseudopotential for fullerene-based compounds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.04841","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":"sha256:6c52102541126f8474d81f5b84c1311544da5942d4aece71af9c1578c80308e4","target":"record","created_at":"2026-05-18T01:04:28Z","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":"73c0a593823e1241be18c7c35fe5e7671cea487d1c5a465adf132c742bfe9361","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2015-12-15T16:22:11Z","title_canon_sha256":"9ec2819be9942b1fb41e3903dc95d45574c9d24d30b77d2e7af1d981de4061b4"},"schema_version":"1.0","source":{"id":"1512.04841","kind":"arxiv","version":1}},"canonical_sha256":"a37e718f351fd64de0541b85917b4e68568b65b806a2dc45fc3942ec1c35d3db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a37e718f351fd64de0541b85917b4e68568b65b806a2dc45fc3942ec1c35d3db","first_computed_at":"2026-05-18T01:04:28.274518Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:28.274518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0u5xqAPmJY2FNKzrJskgmZs0IREqy3W6tbsgTJeQkTxI/H6sCuv3Iabk9I9guNUyFid27U8IiVNCDLwiIVLhDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:28.275052Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.04841","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c52102541126f8474d81f5b84c1311544da5942d4aece71af9c1578c80308e4","sha256:f179578b06f009854fcc10a9e528ea1a2e5b95de0c2357f8cf1733da99c4d041"],"state_sha256":"967af8be438149745eb2b8abae8a7a49bf09128a2b118e04a63a40ba4d9710e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r3tdrwWtrmguyHUOR6Fhn10pjdrwCLhKc81OiJ3VDthIqwXthBnUB3zOu28eY55HP+m2tHLnFgWl4jLsFSRsBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:37:17.747068Z","bundle_sha256":"31378069a0172e0793c95ead5f65a9310855e7c00006e0418034af79afcd3f36"}}