{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:BITKTIOPA4DXZ42W6ZDXDWNK6A","short_pith_number":"pith:BITKTIOP","canonical_record":{"source":{"id":"1404.7800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-04-30T17:03:59Z","cross_cats_sorted":[],"title_canon_sha256":"07caab18c54fb6bec6b801ef6aad794bddee7577ff065862d5d78f5a8b791b01","abstract_canon_sha256":"ea82666f7ff4180fc7002d95fa910c3fc9e93856376e942552d61a300a3e46c2"},"schema_version":"1.0"},"canonical_sha256":"0a26a9a1cf07077cf356f64771d9aaf0290063553781bba4bbbb4f70cca7d625","source":{"kind":"arxiv","id":"1404.7800","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.7800","created_at":"2026-05-18T02:52:49Z"},{"alias_kind":"arxiv_version","alias_value":"1404.7800v1","created_at":"2026-05-18T02:52:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.7800","created_at":"2026-05-18T02:52:49Z"},{"alias_kind":"pith_short_12","alias_value":"BITKTIOPA4DX","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BITKTIOPA4DXZ42W","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BITKTIOP","created_at":"2026-05-18T12:28:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:BITKTIOPA4DXZ42W6ZDXDWNK6A","target":"record","payload":{"canonical_record":{"source":{"id":"1404.7800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-04-30T17:03:59Z","cross_cats_sorted":[],"title_canon_sha256":"07caab18c54fb6bec6b801ef6aad794bddee7577ff065862d5d78f5a8b791b01","abstract_canon_sha256":"ea82666f7ff4180fc7002d95fa910c3fc9e93856376e942552d61a300a3e46c2"},"schema_version":"1.0"},"canonical_sha256":"0a26a9a1cf07077cf356f64771d9aaf0290063553781bba4bbbb4f70cca7d625","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:52:49.948866Z","signature_b64":"m5QJQZKTgwmYAmemSTfN1/A+7t3pz0rKtqwWkGzpIislWSGLLo3WIpI291vPeckbjk/qtgfovv1rfidnSBjWAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a26a9a1cf07077cf356f64771d9aaf0290063553781bba4bbbb4f70cca7d625","last_reissued_at":"2026-05-18T02:52:49.948356Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:52:49.948356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.7800","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":"2026-05-18T02:52:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lH1Os7vJjnX8PYNZfShozOtmB2eZArKzQ+RB7spz7hPaIRzJOOgQJkEc+Al1NndeGSkekal2inPcploEom8XAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:19:03.447803Z"},"content_sha256":"950b131051be1c54884b43af4e80d706387826e7708d4494afeecc311709818b","schema_version":"1.0","event_id":"sha256:950b131051be1c54884b43af4e80d706387826e7708d4494afeecc311709818b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:BITKTIOPA4DXZ42W6ZDXDWNK6A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermodynamic evidence for valley-dependent density of states in bulk bismuth","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"F. Steglich, K. Behnia, L. Steinke, M. Brando, R. Daou, R. Kuechler","submitted_at":"2014-04-30T17:03:59Z","abstract_excerpt":"Electron-like carriers in bismuth are described by the Dirac Hamiltonian, with a band mass becoming a thousandth of the bare electron mass along one crystalline axis. The existence of three anisotropic valleys offers electrons an additional degree of freedom, a subject of recent attention. Here, we map the Landau spectrum by angle-resolved magnetostriction, and quantify the carrier number in each valley: while the electron valleys keep identical spectra, they substantially differ in their density of states at the Fermi level. Thus, the electron fluid does not keep the rotational symmetry of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.7800","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":"2026-05-18T02:52:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fv7uc4ShoE9XyAIcIxg2KHtGQil+mnrIOBXvKDbGU5HHNcPsP3GxtUD48MUSuXN246nJy+7Brz3Hb5m4/Xl9BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:19:03.448184Z"},"content_sha256":"cdeae22010595157e56ed068f0bb7adf2087041acaa2119168274543aee75dda","schema_version":"1.0","event_id":"sha256:cdeae22010595157e56ed068f0bb7adf2087041acaa2119168274543aee75dda"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BITKTIOPA4DXZ42W6ZDXDWNK6A/bundle.json","state_url":"https://pith.science/pith/BITKTIOPA4DXZ42W6ZDXDWNK6A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BITKTIOPA4DXZ42W6ZDXDWNK6A/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":"2026-05-26T21:19:03Z","links":{"resolver":"https://pith.science/pith/BITKTIOPA4DXZ42W6ZDXDWNK6A","bundle":"https://pith.science/pith/BITKTIOPA4DXZ42W6ZDXDWNK6A/bundle.json","state":"https://pith.science/pith/BITKTIOPA4DXZ42W6ZDXDWNK6A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BITKTIOPA4DXZ42W6ZDXDWNK6A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:BITKTIOPA4DXZ42W6ZDXDWNK6A","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":"ea82666f7ff4180fc7002d95fa910c3fc9e93856376e942552d61a300a3e46c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-04-30T17:03:59Z","title_canon_sha256":"07caab18c54fb6bec6b801ef6aad794bddee7577ff065862d5d78f5a8b791b01"},"schema_version":"1.0","source":{"id":"1404.7800","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.7800","created_at":"2026-05-18T02:52:49Z"},{"alias_kind":"arxiv_version","alias_value":"1404.7800v1","created_at":"2026-05-18T02:52:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.7800","created_at":"2026-05-18T02:52:49Z"},{"alias_kind":"pith_short_12","alias_value":"BITKTIOPA4DX","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BITKTIOPA4DXZ42W","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BITKTIOP","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:cdeae22010595157e56ed068f0bb7adf2087041acaa2119168274543aee75dda","target":"graph","created_at":"2026-05-18T02:52:49Z","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":"Electron-like carriers in bismuth are described by the Dirac Hamiltonian, with a band mass becoming a thousandth of the bare electron mass along one crystalline axis. The existence of three anisotropic valleys offers electrons an additional degree of freedom, a subject of recent attention. Here, we map the Landau spectrum by angle-resolved magnetostriction, and quantify the carrier number in each valley: while the electron valleys keep identical spectra, they substantially differ in their density of states at the Fermi level. Thus, the electron fluid does not keep the rotational symmetry of th","authors_text":"F. Steglich, K. Behnia, L. Steinke, M. Brando, R. Daou, R. Kuechler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-04-30T17:03:59Z","title":"Thermodynamic evidence for valley-dependent density of states in bulk bismuth"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.7800","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":"sha256:950b131051be1c54884b43af4e80d706387826e7708d4494afeecc311709818b","target":"record","created_at":"2026-05-18T02:52:49Z","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":"ea82666f7ff4180fc7002d95fa910c3fc9e93856376e942552d61a300a3e46c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-04-30T17:03:59Z","title_canon_sha256":"07caab18c54fb6bec6b801ef6aad794bddee7577ff065862d5d78f5a8b791b01"},"schema_version":"1.0","source":{"id":"1404.7800","kind":"arxiv","version":1}},"canonical_sha256":"0a26a9a1cf07077cf356f64771d9aaf0290063553781bba4bbbb4f70cca7d625","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a26a9a1cf07077cf356f64771d9aaf0290063553781bba4bbbb4f70cca7d625","first_computed_at":"2026-05-18T02:52:49.948356Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:52:49.948356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m5QJQZKTgwmYAmemSTfN1/A+7t3pz0rKtqwWkGzpIislWSGLLo3WIpI291vPeckbjk/qtgfovv1rfidnSBjWAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:52:49.948866Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.7800","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:950b131051be1c54884b43af4e80d706387826e7708d4494afeecc311709818b","sha256:cdeae22010595157e56ed068f0bb7adf2087041acaa2119168274543aee75dda"],"state_sha256":"65d82b680c12b9f256b35a11eff9b563fdb23ab31429cf92b528ba48ad951cf6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3N1PmwKVe/KtSza9gYAG6ZvN9lRon3pdskN3idtV1Acxh/gzgMUCKRJ6ZwElK6651uwgNJz3lkAhZTNl+/YkDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:19:03.451375Z","bundle_sha256":"4436c49b6b994da9cfe798c64cf26e9ed9cf1088eb31df0d5987c1465cf0ab56"}}