{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:2ABMWBTOOA2VXT6HILCLMNX55B","short_pith_number":"pith:2ABMWBTO","canonical_record":{"source":{"id":"1101.2959","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-01-15T10:10:54Z","cross_cats_sorted":[],"title_canon_sha256":"d4436c6a59d5817ee225ed61d3ebb223eddd0f4e65fd703539ffb83a64a66806","abstract_canon_sha256":"2ef5c01320ac477f15b100c774fc55050e4853577f5d091b12deb4a077b335d8"},"schema_version":"1.0"},"canonical_sha256":"d002cb066e70355bcfc742c4b636fde86f0c4cceb4d66e698cbb6e767809e404","source":{"kind":"arxiv","id":"1101.2959","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2959","created_at":"2026-05-18T04:31:23Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2959v1","created_at":"2026-05-18T04:31:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2959","created_at":"2026-05-18T04:31:23Z"},{"alias_kind":"pith_short_12","alias_value":"2ABMWBTOOA2V","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2ABMWBTOOA2VXT6H","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2ABMWBTO","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:2ABMWBTOOA2VXT6HILCLMNX55B","target":"record","payload":{"canonical_record":{"source":{"id":"1101.2959","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-01-15T10:10:54Z","cross_cats_sorted":[],"title_canon_sha256":"d4436c6a59d5817ee225ed61d3ebb223eddd0f4e65fd703539ffb83a64a66806","abstract_canon_sha256":"2ef5c01320ac477f15b100c774fc55050e4853577f5d091b12deb4a077b335d8"},"schema_version":"1.0"},"canonical_sha256":"d002cb066e70355bcfc742c4b636fde86f0c4cceb4d66e698cbb6e767809e404","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:31:23.121583Z","signature_b64":"yjic+DjLun1Y1MHAx4iT0VebnjCcvHZVmccc1G9B+8oZDTtzc8ymfImwm9lf70XTpmRyivqBNKA8y2gR4ab5Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d002cb066e70355bcfc742c4b636fde86f0c4cceb4d66e698cbb6e767809e404","last_reissued_at":"2026-05-18T04:31:23.121175Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:31:23.121175Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.2959","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":"2026-05-18T04:31:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dTFIVYcamQ5AtpFkWEFyLgXaApS7ldga3dk3cnmvddABDRQIoU7gpmxEgPhU9CYfA/w6zqSW0+dstY22ofccBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:23:19.377614Z"},"content_sha256":"df697d40da1b37c21efe8f06701dc789c2ad39a01c53e8f9888494cb6c8aa62e","schema_version":"1.0","event_id":"sha256:df697d40da1b37c21efe8f06701dc789c2ad39a01c53e8f9888494cb6c8aa62e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:2ABMWBTOOA2VXT6HILCLMNX55B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Hardness of a New Boron Phase, Orthorhombic {\\gamma}-B28","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A.R. Oganov, O.O. Kurakevych, V.L. Solozhenko","submitted_at":"2011-01-15T10:10:54Z","abstract_excerpt":"Measurements of the hardness of a new high-pressure boron phase, orthorhombic {\\gamma}-B28, are reported. According to the data obtained, {\\gamma}-B28 has the highest hardness (~50 GPa) of all known crystalline modifications of boron."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2959","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":"2026-05-18T04:31:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nPg/f+dIGweXS3RkOtb1suhnjlTDFcaRFQz6NQIhyoFm+wVsrV8Nua3uAbFfH8ZFH68QCncx00DjhDoc0qysBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:23:19.377954Z"},"content_sha256":"dd1fbde3f653c615cc855b336727f1c2a492c11c1348824cff49d0a4b8f54e0a","schema_version":"1.0","event_id":"sha256:dd1fbde3f653c615cc855b336727f1c2a492c11c1348824cff49d0a4b8f54e0a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2ABMWBTOOA2VXT6HILCLMNX55B/bundle.json","state_url":"https://pith.science/pith/2ABMWBTOOA2VXT6HILCLMNX55B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2ABMWBTOOA2VXT6HILCLMNX55B/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":"2026-05-28T04:23:19Z","links":{"resolver":"https://pith.science/pith/2ABMWBTOOA2VXT6HILCLMNX55B","bundle":"https://pith.science/pith/2ABMWBTOOA2VXT6HILCLMNX55B/bundle.json","state":"https://pith.science/pith/2ABMWBTOOA2VXT6HILCLMNX55B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2ABMWBTOOA2VXT6HILCLMNX55B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:2ABMWBTOOA2VXT6HILCLMNX55B","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":"2ef5c01320ac477f15b100c774fc55050e4853577f5d091b12deb4a077b335d8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-01-15T10:10:54Z","title_canon_sha256":"d4436c6a59d5817ee225ed61d3ebb223eddd0f4e65fd703539ffb83a64a66806"},"schema_version":"1.0","source":{"id":"1101.2959","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2959","created_at":"2026-05-18T04:31:23Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2959v1","created_at":"2026-05-18T04:31:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2959","created_at":"2026-05-18T04:31:23Z"},{"alias_kind":"pith_short_12","alias_value":"2ABMWBTOOA2V","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2ABMWBTOOA2VXT6H","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2ABMWBTO","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:dd1fbde3f653c615cc855b336727f1c2a492c11c1348824cff49d0a4b8f54e0a","target":"graph","created_at":"2026-05-18T04:31:23Z","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":"Measurements of the hardness of a new high-pressure boron phase, orthorhombic {\\gamma}-B28, are reported. According to the data obtained, {\\gamma}-B28 has the highest hardness (~50 GPa) of all known crystalline modifications of boron.","authors_text":"A.R. Oganov, O.O. Kurakevych, V.L. Solozhenko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-01-15T10:10:54Z","title":"On the Hardness of a New Boron Phase, Orthorhombic {\\gamma}-B28"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2959","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:df697d40da1b37c21efe8f06701dc789c2ad39a01c53e8f9888494cb6c8aa62e","target":"record","created_at":"2026-05-18T04:31:23Z","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":"2ef5c01320ac477f15b100c774fc55050e4853577f5d091b12deb4a077b335d8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-01-15T10:10:54Z","title_canon_sha256":"d4436c6a59d5817ee225ed61d3ebb223eddd0f4e65fd703539ffb83a64a66806"},"schema_version":"1.0","source":{"id":"1101.2959","kind":"arxiv","version":1}},"canonical_sha256":"d002cb066e70355bcfc742c4b636fde86f0c4cceb4d66e698cbb6e767809e404","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d002cb066e70355bcfc742c4b636fde86f0c4cceb4d66e698cbb6e767809e404","first_computed_at":"2026-05-18T04:31:23.121175Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:31:23.121175Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yjic+DjLun1Y1MHAx4iT0VebnjCcvHZVmccc1G9B+8oZDTtzc8ymfImwm9lf70XTpmRyivqBNKA8y2gR4ab5Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:31:23.121583Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.2959","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df697d40da1b37c21efe8f06701dc789c2ad39a01c53e8f9888494cb6c8aa62e","sha256:dd1fbde3f653c615cc855b336727f1c2a492c11c1348824cff49d0a4b8f54e0a"],"state_sha256":"2e9936a251d089c06545e5032e60ee05a3de39053c189ffe3c5e8fde2ed6c7ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uPW3kovt5OsJGNiJzl/Oo2Rmpa0ii0jgrVA/9o/Z8WMbK8XgRgL5S/p7Sda1BJEubwUhDK0KtZv+XKBry+q/Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T04:23:19.380078Z","bundle_sha256":"efcd7ded7124fb93f575000e6a4c98c0615591ae96744e0379eaeb3ff5046e83"}}