{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:RFU3EROQJQTY7TBQTTEOYZSUNM","short_pith_number":"pith:RFU3EROQ","canonical_record":{"source":{"id":"1804.09620","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-25T15:18:15Z","cross_cats_sorted":[],"title_canon_sha256":"fbdc46c96607c545283b8f50f4d6ab5d2650c8e0d06f6a4cde33f38789e25a54","abstract_canon_sha256":"be2f828a3ea3a79d4214864a94c18a2b269b66f5887f25b9e766fea35e4e186b"},"schema_version":"1.0"},"canonical_sha256":"8969b245d04c278fcc309cc8ec66546b101bead313ed7a6690e9fcb42759ff10","source":{"kind":"arxiv","id":"1804.09620","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.09620","created_at":"2026-05-18T00:10:48Z"},{"alias_kind":"arxiv_version","alias_value":"1804.09620v1","created_at":"2026-05-18T00:10:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.09620","created_at":"2026-05-18T00:10:48Z"},{"alias_kind":"pith_short_12","alias_value":"RFU3EROQJQTY","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RFU3EROQJQTY7TBQ","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RFU3EROQ","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:RFU3EROQJQTY7TBQTTEOYZSUNM","target":"record","payload":{"canonical_record":{"source":{"id":"1804.09620","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-25T15:18:15Z","cross_cats_sorted":[],"title_canon_sha256":"fbdc46c96607c545283b8f50f4d6ab5d2650c8e0d06f6a4cde33f38789e25a54","abstract_canon_sha256":"be2f828a3ea3a79d4214864a94c18a2b269b66f5887f25b9e766fea35e4e186b"},"schema_version":"1.0"},"canonical_sha256":"8969b245d04c278fcc309cc8ec66546b101bead313ed7a6690e9fcb42759ff10","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:48.766760Z","signature_b64":"cwQ3kqxHmxM4XhntTkaysJC4PVjLKcyKI/BqkY60G8ewzM6zNuVhaAE66lU5NExIJQugFFdgBCZvltVuAzbnCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8969b245d04c278fcc309cc8ec66546b101bead313ed7a6690e9fcb42759ff10","last_reissued_at":"2026-05-18T00:10:48.766253Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:48.766253Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.09620","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":"2026-05-18T00:10:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0LKzkglfu0lW5n+lkVs3vSQi4HT+OM9TVWd6VdkFa8JV9qZkKkk8jCDweyfqMu4IN2QvtzDUg7YykncBdoeWDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:48:59.812396Z"},"content_sha256":"c474a187fc56464095705d0356260b72467eb3f937b06f1ed821aee5b402687e","schema_version":"1.0","event_id":"sha256:c474a187fc56464095705d0356260b72467eb3f937b06f1ed821aee5b402687e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:RFU3EROQJQTY7TBQTTEOYZSUNM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A simple model for explaining Galaxy Rotation Curves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Andrzej Borowiec, Aneta Wojnar, Ciprian A. Sporea","submitted_at":"2018-04-25T15:18:15Z","abstract_excerpt":"A new simple expression for the circular velocity of spiral galaxies is proposed and tested against HI Nearby Galaxy Survey (THINGS) data set. Its accuracy is compared with the one coming from MOND."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.09620","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":"2026-05-18T00:10:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jwuHzn6oX1/3jrWA7Wtoe/8dV/WaftZmIn6GBVixn6FOO1dwfTKtaepLezMo/ej5fr4vkBu7dYJC3r2KOYMcDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:48:59.813054Z"},"content_sha256":"d8e15bbb53cc1f88bb0d1f9b580d231c7482362fe4bffd358137068948776234","schema_version":"1.0","event_id":"sha256:d8e15bbb53cc1f88bb0d1f9b580d231c7482362fe4bffd358137068948776234"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RFU3EROQJQTY7TBQTTEOYZSUNM/bundle.json","state_url":"https://pith.science/pith/RFU3EROQJQTY7TBQTTEOYZSUNM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RFU3EROQJQTY7TBQTTEOYZSUNM/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":"2026-05-25T15:48:59Z","links":{"resolver":"https://pith.science/pith/RFU3EROQJQTY7TBQTTEOYZSUNM","bundle":"https://pith.science/pith/RFU3EROQJQTY7TBQTTEOYZSUNM/bundle.json","state":"https://pith.science/pith/RFU3EROQJQTY7TBQTTEOYZSUNM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RFU3EROQJQTY7TBQTTEOYZSUNM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RFU3EROQJQTY7TBQTTEOYZSUNM","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":"be2f828a3ea3a79d4214864a94c18a2b269b66f5887f25b9e766fea35e4e186b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-25T15:18:15Z","title_canon_sha256":"fbdc46c96607c545283b8f50f4d6ab5d2650c8e0d06f6a4cde33f38789e25a54"},"schema_version":"1.0","source":{"id":"1804.09620","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.09620","created_at":"2026-05-18T00:10:48Z"},{"alias_kind":"arxiv_version","alias_value":"1804.09620v1","created_at":"2026-05-18T00:10:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.09620","created_at":"2026-05-18T00:10:48Z"},{"alias_kind":"pith_short_12","alias_value":"RFU3EROQJQTY","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RFU3EROQJQTY7TBQ","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RFU3EROQ","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:d8e15bbb53cc1f88bb0d1f9b580d231c7482362fe4bffd358137068948776234","target":"graph","created_at":"2026-05-18T00:10:48Z","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 new simple expression for the circular velocity of spiral galaxies is proposed and tested against HI Nearby Galaxy Survey (THINGS) data set. Its accuracy is compared with the one coming from MOND.","authors_text":"Andrzej Borowiec, Aneta Wojnar, Ciprian A. Sporea","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-25T15:18:15Z","title":"A simple model for explaining Galaxy Rotation Curves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.09620","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:c474a187fc56464095705d0356260b72467eb3f937b06f1ed821aee5b402687e","target":"record","created_at":"2026-05-18T00:10:48Z","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":"be2f828a3ea3a79d4214864a94c18a2b269b66f5887f25b9e766fea35e4e186b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-25T15:18:15Z","title_canon_sha256":"fbdc46c96607c545283b8f50f4d6ab5d2650c8e0d06f6a4cde33f38789e25a54"},"schema_version":"1.0","source":{"id":"1804.09620","kind":"arxiv","version":1}},"canonical_sha256":"8969b245d04c278fcc309cc8ec66546b101bead313ed7a6690e9fcb42759ff10","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8969b245d04c278fcc309cc8ec66546b101bead313ed7a6690e9fcb42759ff10","first_computed_at":"2026-05-18T00:10:48.766253Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:48.766253Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cwQ3kqxHmxM4XhntTkaysJC4PVjLKcyKI/BqkY60G8ewzM6zNuVhaAE66lU5NExIJQugFFdgBCZvltVuAzbnCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:48.766760Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.09620","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c474a187fc56464095705d0356260b72467eb3f937b06f1ed821aee5b402687e","sha256:d8e15bbb53cc1f88bb0d1f9b580d231c7482362fe4bffd358137068948776234"],"state_sha256":"2f635c1b467716b7cd45cc294672638c8bc757498c2a10da6d3a2cb03c30f1d8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iAJ/Ok9XG5W4noKKcnwdAcZA97N0B1JQKw4gkvYGgI/2qE1GBvCyafcnpptsVVO5LhEZJg6Yy1mE7mfAnp7TAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T15:48:59.816507Z","bundle_sha256":"b6d6654344b87e152aa79e27affaabf4365a890610119912fd0bccfed8514632"}}