{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:D7MTRXJHWZFEWGMYGE55D5FAVT","short_pith_number":"pith:D7MTRXJH","canonical_record":{"source":{"id":"1301.4062","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-17T11:59:50Z","cross_cats_sorted":[],"title_canon_sha256":"7f88506960f111e1373aadfbe7198e852d8083ea002272a5d860dca474517065","abstract_canon_sha256":"4009f33e5a1c512330739f16f3d03e7a8aefe32567a7790b9cb7449efd5bfd74"},"schema_version":"1.0"},"canonical_sha256":"1fd938dd27b64a4b1998313bd1f4a0acce2051c66dd371262b607002188f0bd9","source":{"kind":"arxiv","id":"1301.4062","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.4062","created_at":"2026-05-18T03:36:14Z"},{"alias_kind":"arxiv_version","alias_value":"1301.4062v1","created_at":"2026-05-18T03:36:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.4062","created_at":"2026-05-18T03:36:14Z"},{"alias_kind":"pith_short_12","alias_value":"D7MTRXJHWZFE","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"D7MTRXJHWZFEWGMY","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"D7MTRXJH","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:D7MTRXJHWZFEWGMYGE55D5FAVT","target":"record","payload":{"canonical_record":{"source":{"id":"1301.4062","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-17T11:59:50Z","cross_cats_sorted":[],"title_canon_sha256":"7f88506960f111e1373aadfbe7198e852d8083ea002272a5d860dca474517065","abstract_canon_sha256":"4009f33e5a1c512330739f16f3d03e7a8aefe32567a7790b9cb7449efd5bfd74"},"schema_version":"1.0"},"canonical_sha256":"1fd938dd27b64a4b1998313bd1f4a0acce2051c66dd371262b607002188f0bd9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:36:14.415901Z","signature_b64":"kHOH8C80tOqQ3ph9w8oQhfXkCxYlD5UFlK/KxJ3OFCzv01qTt5v/QlOELlHfTNG9cr6trGdOZBYqd/HvWJ/ICQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1fd938dd27b64a4b1998313bd1f4a0acce2051c66dd371262b607002188f0bd9","last_reissued_at":"2026-05-18T03:36:14.415067Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:36:14.415067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.4062","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":"2026-05-18T03:36:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3PQCH8RiYG+mq3lwPH5wy31QYxu13lhoxiPPebLeaqirSPEnkxcfU3GwYQeYU32J/+Gg/9LxNBbuVloIOAoxAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T17:21:16.231882Z"},"content_sha256":"72ccece5627497c62e5feac19072dacd46556e2c8ebeadd6455cd636cf0bbc3e","schema_version":"1.0","event_id":"sha256:72ccece5627497c62e5feac19072dacd46556e2c8ebeadd6455cd636cf0bbc3e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:D7MTRXJHWZFEWGMYGE55D5FAVT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effect of calcium stoichiometry on the dielectric response of CaCu3Ti4O12 Ceramics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"K. B. R. Varma, K. Dwarakanath, P. Thomas","submitted_at":"2013-01-17T11:59:50Z","abstract_excerpt":"CaxCu3Ti4O12 polycrystalline powders with variation in calcium content were prepared via the oxalate precursor route. The structural, morphological and dielectric properties of the ceramics fabricated using these powders were studied using x ray diffraction, Scanning Electron Microscope along with Energy Dispersive X ray Analysis, Transmission Electron Microscopy, Electron Spin Resonance (ESR) spectroscopy and Impedance analyzer. The X ray diffraction patterns obtained for the x = 0.97, 1.0 and 1.1 powdered ceramics could be indexed to a body centered cubic perovskite related structure associa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.4062","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":"2026-05-18T03:36:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RQn6wrpE6qWfRQrqb9WYD/Zj6ZFgtCAatKg/Caz4WwRm8ALii/oSEtZO0Xo2Mpj5h2BY0nUTDh4SOXmbfN/qBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T17:21:16.232222Z"},"content_sha256":"562a79b402789383f117f9cf446ad3aa37ff34dccb11e5ee5d46c3e652fa3c34","schema_version":"1.0","event_id":"sha256:562a79b402789383f117f9cf446ad3aa37ff34dccb11e5ee5d46c3e652fa3c34"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D7MTRXJHWZFEWGMYGE55D5FAVT/bundle.json","state_url":"https://pith.science/pith/D7MTRXJHWZFEWGMYGE55D5FAVT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D7MTRXJHWZFEWGMYGE55D5FAVT/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":"2026-06-03T17:21:16Z","links":{"resolver":"https://pith.science/pith/D7MTRXJHWZFEWGMYGE55D5FAVT","bundle":"https://pith.science/pith/D7MTRXJHWZFEWGMYGE55D5FAVT/bundle.json","state":"https://pith.science/pith/D7MTRXJHWZFEWGMYGE55D5FAVT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D7MTRXJHWZFEWGMYGE55D5FAVT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:D7MTRXJHWZFEWGMYGE55D5FAVT","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":"4009f33e5a1c512330739f16f3d03e7a8aefe32567a7790b9cb7449efd5bfd74","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-17T11:59:50Z","title_canon_sha256":"7f88506960f111e1373aadfbe7198e852d8083ea002272a5d860dca474517065"},"schema_version":"1.0","source":{"id":"1301.4062","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.4062","created_at":"2026-05-18T03:36:14Z"},{"alias_kind":"arxiv_version","alias_value":"1301.4062v1","created_at":"2026-05-18T03:36:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.4062","created_at":"2026-05-18T03:36:14Z"},{"alias_kind":"pith_short_12","alias_value":"D7MTRXJHWZFE","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"D7MTRXJHWZFEWGMY","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"D7MTRXJH","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:562a79b402789383f117f9cf446ad3aa37ff34dccb11e5ee5d46c3e652fa3c34","target":"graph","created_at":"2026-05-18T03:36:14Z","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":"CaxCu3Ti4O12 polycrystalline powders with variation in calcium content were prepared via the oxalate precursor route. The structural, morphological and dielectric properties of the ceramics fabricated using these powders were studied using x ray diffraction, Scanning Electron Microscope along with Energy Dispersive X ray Analysis, Transmission Electron Microscopy, Electron Spin Resonance (ESR) spectroscopy and Impedance analyzer. The X ray diffraction patterns obtained for the x = 0.97, 1.0 and 1.1 powdered ceramics could be indexed to a body centered cubic perovskite related structure associa","authors_text":"K. B. R. Varma, K. Dwarakanath, P. Thomas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-17T11:59:50Z","title":"Effect of calcium stoichiometry on the dielectric response of CaCu3Ti4O12 Ceramics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.4062","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":"sha256:72ccece5627497c62e5feac19072dacd46556e2c8ebeadd6455cd636cf0bbc3e","target":"record","created_at":"2026-05-18T03:36:14Z","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":"4009f33e5a1c512330739f16f3d03e7a8aefe32567a7790b9cb7449efd5bfd74","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-17T11:59:50Z","title_canon_sha256":"7f88506960f111e1373aadfbe7198e852d8083ea002272a5d860dca474517065"},"schema_version":"1.0","source":{"id":"1301.4062","kind":"arxiv","version":1}},"canonical_sha256":"1fd938dd27b64a4b1998313bd1f4a0acce2051c66dd371262b607002188f0bd9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1fd938dd27b64a4b1998313bd1f4a0acce2051c66dd371262b607002188f0bd9","first_computed_at":"2026-05-18T03:36:14.415067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:36:14.415067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kHOH8C80tOqQ3ph9w8oQhfXkCxYlD5UFlK/KxJ3OFCzv01qTt5v/QlOELlHfTNG9cr6trGdOZBYqd/HvWJ/ICQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:36:14.415901Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.4062","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72ccece5627497c62e5feac19072dacd46556e2c8ebeadd6455cd636cf0bbc3e","sha256:562a79b402789383f117f9cf446ad3aa37ff34dccb11e5ee5d46c3e652fa3c34"],"state_sha256":"17bc44cd2be6658d8afaed8a2b3d66e4458e8bd6d39cb5a4b3e8e8a1c1da5b6e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MU77Npw3X1dYx2tbUC+0CZKrRmRuPfhpslxW1Bve0aFJFEVaZ78+GfQcmd5RWmWkH/nuUs+UYaWabGKak23nCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T17:21:16.234074Z","bundle_sha256":"25577b4819adde658a0047837e10d379ca8575647826ccc806fdd8edf4a6d9b6"}}