{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:BKZ7ZTGZNG2XL6CU5KOWDGFJRI","short_pith_number":"pith:BKZ7ZTGZ","canonical_record":{"source":{"id":"1006.1161","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T02:51:35Z","cross_cats_sorted":[],"title_canon_sha256":"73ba2f4b645ea6e2653b5bcc6d1d20518ee8caf994f829a1d70c995eb1ea0a1d","abstract_canon_sha256":"c153630301487558f8ea7d174343ffc0b057a393b50ab74edf12a5f979f1fc90"},"schema_version":"1.0"},"canonical_sha256":"0ab3fcccd969b575f854ea9d6198a98a052e92c3637e1bdb87b92c2ac779d217","source":{"kind":"arxiv","id":"1006.1161","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1161","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1161v1","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1161","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"pith_short_12","alias_value":"BKZ7ZTGZNG2X","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"BKZ7ZTGZNG2XL6CU","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"BKZ7ZTGZ","created_at":"2026-05-18T12:26:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:BKZ7ZTGZNG2XL6CU5KOWDGFJRI","target":"record","payload":{"canonical_record":{"source":{"id":"1006.1161","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T02:51:35Z","cross_cats_sorted":[],"title_canon_sha256":"73ba2f4b645ea6e2653b5bcc6d1d20518ee8caf994f829a1d70c995eb1ea0a1d","abstract_canon_sha256":"c153630301487558f8ea7d174343ffc0b057a393b50ab74edf12a5f979f1fc90"},"schema_version":"1.0"},"canonical_sha256":"0ab3fcccd969b575f854ea9d6198a98a052e92c3637e1bdb87b92c2ac779d217","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:56.939240Z","signature_b64":"u6CvihpKGD1X1i+6+OLWuWKuwd0oA6fr3XJumnQcQWjp39Yf3KhPs2/2lRMbt/cY0WVbN1wRvl2ns38yZNzYBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ab3fcccd969b575f854ea9d6198a98a052e92c3637e1bdb87b92c2ac779d217","last_reissued_at":"2026-05-18T02:06:56.938511Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:56.938511Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1006.1161","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":"2026-05-18T02:06:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"clBgJtjUr7kQdPL5eZRfynAvWqlCC32MM1WK1NIuhSQrmV88CbcpI+EvlH1Y2taayL1QMvwis5fWF7ULkFZ3AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T14:00:17.882083Z"},"content_sha256":"863c01b1acdd9026f6cbf9856687fc3c8d2d1c66c5e1d51bb24d37070edc946d","schema_version":"1.0","event_id":"sha256:863c01b1acdd9026f6cbf9856687fc3c8d2d1c66c5e1d51bb24d37070edc946d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:BKZ7ZTGZNG2XL6CU5KOWDGFJRI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Robust Approach for the Growth of Epitaxial Spinel Ferrite Films","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Gupta, D. Mazumdar, G. Kim, H. Sato, J. X. Ma, N. Z. Bao","submitted_at":"2010-06-07T02:51:35Z","abstract_excerpt":"Heteroepitaxial spinel ferrites NiFe2O4 and CoFe2O4 films have been prepared by pulsed laser deposition (PLD) at various temperatures (175 - 690 {\\deg}C) under ozone/oxygen pressure of 10 mTorr. Due to enhanced kinetic energy of ablated species at low pressure and enhanced oxidation power of ozone, epitaxy has been achieved at significantly lower temperatures than previously reported. Films grown at temperature below 550 {\\deg}C show a novel growth mode, which we term \"vertical step-flow\" growth mode. Epitaxial spinel ferrite films with atomically flat surface over large areas and enhanced mag"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1161","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":"2026-05-18T02:06:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YmEzvUfv6UmhE14uwBIQ3N4hX3kX6msqvA3uxed2UZSvuUCMBjwqsDefS2A8qX8E4+zr1HQfeWWKcjqoiA6KBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T14:00:17.882452Z"},"content_sha256":"9308dd4e529036cdc64a04ff3eff277a0748fdbb21c3e9c0a969e3dd9bb8cd12","schema_version":"1.0","event_id":"sha256:9308dd4e529036cdc64a04ff3eff277a0748fdbb21c3e9c0a969e3dd9bb8cd12"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BKZ7ZTGZNG2XL6CU5KOWDGFJRI/bundle.json","state_url":"https://pith.science/pith/BKZ7ZTGZNG2XL6CU5KOWDGFJRI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BKZ7ZTGZNG2XL6CU5KOWDGFJRI/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":"2026-06-22T14:00:17Z","links":{"resolver":"https://pith.science/pith/BKZ7ZTGZNG2XL6CU5KOWDGFJRI","bundle":"https://pith.science/pith/BKZ7ZTGZNG2XL6CU5KOWDGFJRI/bundle.json","state":"https://pith.science/pith/BKZ7ZTGZNG2XL6CU5KOWDGFJRI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BKZ7ZTGZNG2XL6CU5KOWDGFJRI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:BKZ7ZTGZNG2XL6CU5KOWDGFJRI","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":"c153630301487558f8ea7d174343ffc0b057a393b50ab74edf12a5f979f1fc90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T02:51:35Z","title_canon_sha256":"73ba2f4b645ea6e2653b5bcc6d1d20518ee8caf994f829a1d70c995eb1ea0a1d"},"schema_version":"1.0","source":{"id":"1006.1161","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1161","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1161v1","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1161","created_at":"2026-05-18T02:06:56Z"},{"alias_kind":"pith_short_12","alias_value":"BKZ7ZTGZNG2X","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"BKZ7ZTGZNG2XL6CU","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"BKZ7ZTGZ","created_at":"2026-05-18T12:26:05Z"}],"graph_snapshots":[{"event_id":"sha256:9308dd4e529036cdc64a04ff3eff277a0748fdbb21c3e9c0a969e3dd9bb8cd12","target":"graph","created_at":"2026-05-18T02:06:56Z","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":"Heteroepitaxial spinel ferrites NiFe2O4 and CoFe2O4 films have been prepared by pulsed laser deposition (PLD) at various temperatures (175 - 690 {\\deg}C) under ozone/oxygen pressure of 10 mTorr. Due to enhanced kinetic energy of ablated species at low pressure and enhanced oxidation power of ozone, epitaxy has been achieved at significantly lower temperatures than previously reported. Films grown at temperature below 550 {\\deg}C show a novel growth mode, which we term \"vertical step-flow\" growth mode. Epitaxial spinel ferrite films with atomically flat surface over large areas and enhanced mag","authors_text":"A. Gupta, D. Mazumdar, G. Kim, H. Sato, J. X. Ma, N. Z. Bao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T02:51:35Z","title":"A Robust Approach for the Growth of Epitaxial Spinel Ferrite Films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1161","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":"sha256:863c01b1acdd9026f6cbf9856687fc3c8d2d1c66c5e1d51bb24d37070edc946d","target":"record","created_at":"2026-05-18T02:06:56Z","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":"c153630301487558f8ea7d174343ffc0b057a393b50ab74edf12a5f979f1fc90","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-06-07T02:51:35Z","title_canon_sha256":"73ba2f4b645ea6e2653b5bcc6d1d20518ee8caf994f829a1d70c995eb1ea0a1d"},"schema_version":"1.0","source":{"id":"1006.1161","kind":"arxiv","version":1}},"canonical_sha256":"0ab3fcccd969b575f854ea9d6198a98a052e92c3637e1bdb87b92c2ac779d217","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ab3fcccd969b575f854ea9d6198a98a052e92c3637e1bdb87b92c2ac779d217","first_computed_at":"2026-05-18T02:06:56.938511Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:56.938511Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u6CvihpKGD1X1i+6+OLWuWKuwd0oA6fr3XJumnQcQWjp39Yf3KhPs2/2lRMbt/cY0WVbN1wRvl2ns38yZNzYBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:56.939240Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.1161","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:863c01b1acdd9026f6cbf9856687fc3c8d2d1c66c5e1d51bb24d37070edc946d","sha256:9308dd4e529036cdc64a04ff3eff277a0748fdbb21c3e9c0a969e3dd9bb8cd12"],"state_sha256":"c2a52457e3388d9a956359c292641f7fb91935ece50481dc29646333f481ea32"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CPnskusAJwXRizmxwBVWQXG6wmjsqclJsUQL6Db5w5k5G4oZwr/w4LcWrIgC6/bZp3u1o7WEr37pXIDEHADHAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T14:00:17.884443Z","bundle_sha256":"4a7b4ec4442f362495fdb488f94fabb4593a8c56a00bd33f792b1d5fc38b45a6"}}