{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:P4STTXZ6CR4ZYXO6LJDNNDW55F","short_pith_number":"pith:P4STTXZ6","canonical_record":{"source":{"id":"1501.07024","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-01-28T08:28:25Z","cross_cats_sorted":[],"title_canon_sha256":"672341cdff9990ce2e14a18df923a3c05182c7215230755510d8e6255ad66809","abstract_canon_sha256":"b6ccd9fdb99547ce2f3ec7388b4f79f89736727a191d24ca54da9b3dd9a438d5"},"schema_version":"1.0"},"canonical_sha256":"7f2539df3e14799c5dde5a46d68edde945f07226942ba2d88535c52b4b6e5dee","source":{"kind":"arxiv","id":"1501.07024","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.07024","created_at":"2026-05-18T02:28:30Z"},{"alias_kind":"arxiv_version","alias_value":"1501.07024v1","created_at":"2026-05-18T02:28:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.07024","created_at":"2026-05-18T02:28:30Z"},{"alias_kind":"pith_short_12","alias_value":"P4STTXZ6CR4Z","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"P4STTXZ6CR4ZYXO6","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"P4STTXZ6","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:P4STTXZ6CR4ZYXO6LJDNNDW55F","target":"record","payload":{"canonical_record":{"source":{"id":"1501.07024","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-01-28T08:28:25Z","cross_cats_sorted":[],"title_canon_sha256":"672341cdff9990ce2e14a18df923a3c05182c7215230755510d8e6255ad66809","abstract_canon_sha256":"b6ccd9fdb99547ce2f3ec7388b4f79f89736727a191d24ca54da9b3dd9a438d5"},"schema_version":"1.0"},"canonical_sha256":"7f2539df3e14799c5dde5a46d68edde945f07226942ba2d88535c52b4b6e5dee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:28:30.489950Z","signature_b64":"omW8EfNHqenv+TKkTVrBIm2j6hC9tBHCGnA2LSWCAQvptgob/5t+Enaa3kHjiU9fnTCz9B/wvryQxe6alZeDDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f2539df3e14799c5dde5a46d68edde945f07226942ba2d88535c52b4b6e5dee","last_reissued_at":"2026-05-18T02:28:30.489465Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:28:30.489465Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.07024","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":"2026-05-18T02:28:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lqhsUAIxX/REJyMxnjPoKyRVMpYw/MRkBdKCyvgExA/Pclo8G8pB5Wt/CxlL+qK295z4Hxkvzd7pl81FS5XCDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:42:56.866759Z"},"content_sha256":"9fdfffd6ea198f594b71bf9643c66021382d9d206a53102359b076771a5669ce","schema_version":"1.0","event_id":"sha256:9fdfffd6ea198f594b71bf9643c66021382d9d206a53102359b076771a5669ce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:P4STTXZ6CR4ZYXO6LJDNNDW55F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Status of the Bio-Nano electron cyclotron resonance ion source at Toyo University","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. G. Drentje, A. Kitagawa, H. Minezaki, M. Muramatsu, R. Racz, S. Biri, S. Ishihara, T. Asaji, T. Uchida, Y. Kato, Y. Yoshida","submitted_at":"2015-01-28T08:28:25Z","abstract_excerpt":"In the paper, the material science experiments, carried out recently using the Bio-Nano electron cyclotron resonance ion source (ECRIS) at Toyo University, are reported. We have investigated several methods to synthesize endohedral C60 using ion-ion and ion-molecule collision reaction in the ECRIS. Because of the simplicity of the configuration, we can install a large choice of additional equipment in the ECRIS. The Bio-Nano ECRIS is suitable not only to test the materials production but also to test technical developments to improve or understand the performance of an ECRIS."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.07024","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":"2026-05-18T02:28:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wN+NSZ77WPnvOYRvbJrpzotbyA8Gqtf2OxglITpoOXbk8bQpEFyNSM7wxhecG2m6IJPmYdDL+8dMG6gevlpKDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:42:56.867482Z"},"content_sha256":"869ced01242b54eb7a0682ae63bd60a2b0df4086ab659dbbf2d221224f6600d1","schema_version":"1.0","event_id":"sha256:869ced01242b54eb7a0682ae63bd60a2b0df4086ab659dbbf2d221224f6600d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P4STTXZ6CR4ZYXO6LJDNNDW55F/bundle.json","state_url":"https://pith.science/pith/P4STTXZ6CR4ZYXO6LJDNNDW55F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P4STTXZ6CR4ZYXO6LJDNNDW55F/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":"2026-05-26T20:42:56Z","links":{"resolver":"https://pith.science/pith/P4STTXZ6CR4ZYXO6LJDNNDW55F","bundle":"https://pith.science/pith/P4STTXZ6CR4ZYXO6LJDNNDW55F/bundle.json","state":"https://pith.science/pith/P4STTXZ6CR4ZYXO6LJDNNDW55F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P4STTXZ6CR4ZYXO6LJDNNDW55F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:P4STTXZ6CR4ZYXO6LJDNNDW55F","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":"b6ccd9fdb99547ce2f3ec7388b4f79f89736727a191d24ca54da9b3dd9a438d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-01-28T08:28:25Z","title_canon_sha256":"672341cdff9990ce2e14a18df923a3c05182c7215230755510d8e6255ad66809"},"schema_version":"1.0","source":{"id":"1501.07024","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.07024","created_at":"2026-05-18T02:28:30Z"},{"alias_kind":"arxiv_version","alias_value":"1501.07024v1","created_at":"2026-05-18T02:28:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.07024","created_at":"2026-05-18T02:28:30Z"},{"alias_kind":"pith_short_12","alias_value":"P4STTXZ6CR4Z","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"P4STTXZ6CR4ZYXO6","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"P4STTXZ6","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:869ced01242b54eb7a0682ae63bd60a2b0df4086ab659dbbf2d221224f6600d1","target":"graph","created_at":"2026-05-18T02:28:30Z","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":"In the paper, the material science experiments, carried out recently using the Bio-Nano electron cyclotron resonance ion source (ECRIS) at Toyo University, are reported. We have investigated several methods to synthesize endohedral C60 using ion-ion and ion-molecule collision reaction in the ECRIS. Because of the simplicity of the configuration, we can install a large choice of additional equipment in the ECRIS. The Bio-Nano ECRIS is suitable not only to test the materials production but also to test technical developments to improve or understand the performance of an ECRIS.","authors_text":"A. G. Drentje, A. Kitagawa, H. Minezaki, M. Muramatsu, R. Racz, S. Biri, S. Ishihara, T. Asaji, T. Uchida, Y. Kato, Y. Yoshida","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-01-28T08:28:25Z","title":"Status of the Bio-Nano electron cyclotron resonance ion source at Toyo University"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.07024","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":"sha256:9fdfffd6ea198f594b71bf9643c66021382d9d206a53102359b076771a5669ce","target":"record","created_at":"2026-05-18T02:28:30Z","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":"b6ccd9fdb99547ce2f3ec7388b4f79f89736727a191d24ca54da9b3dd9a438d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-01-28T08:28:25Z","title_canon_sha256":"672341cdff9990ce2e14a18df923a3c05182c7215230755510d8e6255ad66809"},"schema_version":"1.0","source":{"id":"1501.07024","kind":"arxiv","version":1}},"canonical_sha256":"7f2539df3e14799c5dde5a46d68edde945f07226942ba2d88535c52b4b6e5dee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f2539df3e14799c5dde5a46d68edde945f07226942ba2d88535c52b4b6e5dee","first_computed_at":"2026-05-18T02:28:30.489465Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:30.489465Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"omW8EfNHqenv+TKkTVrBIm2j6hC9tBHCGnA2LSWCAQvptgob/5t+Enaa3kHjiU9fnTCz9B/wvryQxe6alZeDDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:30.489950Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.07024","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9fdfffd6ea198f594b71bf9643c66021382d9d206a53102359b076771a5669ce","sha256:869ced01242b54eb7a0682ae63bd60a2b0df4086ab659dbbf2d221224f6600d1"],"state_sha256":"1dcd7d619403662dc12838546092c412fb688d8a22098b054b761f9b2fa64106"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y7oA4GurrF6wkilB4r48Wa/3L+XKJeOFTP6b51hv6YscYEIaJHjwpIM/OK2TwaIOVSiiUIYp8YZDQeuJNOEhCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T20:42:56.871014Z","bundle_sha256":"ec9cc63670f6750e52c2e98250682a4d15b8af1666422d191ac7b9bc9594a4e3"}}