{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:3FYVP63VJWYTMECR7QEF4APABQ","short_pith_number":"pith:3FYVP63V","canonical_record":{"source":{"id":"1909.10463","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-09-23T16:37:21Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"title_canon_sha256":"1db62369d7ffb8d2baaa642a55adc62558a4f9749c8a3236f42f024e399e3d6c","abstract_canon_sha256":"95bc67212ce7b9d42763fa38a6c21fe86c944e0bc4df1003b4b1ab8c8cf04448"},"schema_version":"1.0"},"canonical_sha256":"d97157fb754db1361051fc085e01e00c14ea15ab84649f2549ce4728a29e489b","source":{"kind":"arxiv","id":"1909.10463","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.10463","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"arxiv_version","alias_value":"1909.10463v1","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.10463","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"pith_short_12","alias_value":"3FYVP63VJWYT","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"pith_short_16","alias_value":"3FYVP63VJWYTMECR","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"pith_short_8","alias_value":"3FYVP63V","created_at":"2026-07-05T00:06:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:3FYVP63VJWYTMECR7QEF4APABQ","target":"record","payload":{"canonical_record":{"source":{"id":"1909.10463","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-09-23T16:37:21Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"title_canon_sha256":"1db62369d7ffb8d2baaa642a55adc62558a4f9749c8a3236f42f024e399e3d6c","abstract_canon_sha256":"95bc67212ce7b9d42763fa38a6c21fe86c944e0bc4df1003b4b1ab8c8cf04448"},"schema_version":"1.0"},"canonical_sha256":"d97157fb754db1361051fc085e01e00c14ea15ab84649f2549ce4728a29e489b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:06:20.606983Z","signature_b64":"wnDmAIb97qiKha1LUREy41mAreZHlk3Cf2Y1AOd0TXULLNpWOyvPYseFnQBLsFw+aGP7Loiq+QscLS5Av8EDDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d97157fb754db1361051fc085e01e00c14ea15ab84649f2549ce4728a29e489b","last_reissued_at":"2026-07-05T00:06:20.606436Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:06:20.606436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1909.10463","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":"2026-07-05T00:06:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LcT9GorG5cTRFRQnrWEy+oOfBiHNokoTJjIiQAkTQaZO2eSNZ05lcBqmRwukRFoqms8cconrsjGRMsj1xtIJCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T00:11:29.660874Z"},"content_sha256":"e61f7418a208bfb1b895c237eb704a7da35f245b4c5ab7fd9bea54210487dee4","schema_version":"1.0","event_id":"sha256:e61f7418a208bfb1b895c237eb704a7da35f245b4c5ab7fd9bea54210487dee4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:3FYVP63VJWYTMECR7QEF4APABQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Complex hybridization physics and evidence of structural anomaly to be a bulk property in an exotic Fe-based compound, CaFe2As2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"Anup Pradhan Sakhya, Arindam Pramanik, A. Thamizhavel, Kalobaran Maiti, Ram Prakash Pandeya","submitted_at":"2019-09-23T16:37:21Z","abstract_excerpt":"Surface of quantum materials often exhibits significantly different behavior than the bulk due to changed topologies and symmetry protections. The outstanding problem is to find out if the exoticity of a material is linked to the changed topology at the surface or it is a bulk property. Hard x-ray photoemission spectroscopy (HAXPES) is a significantly bulk sensitive technique (escape depth of valence electrons is about 40 \\AA\\ for 6 keV photon energy) and the probing depth can be tuned by changing the electron emission angle. Therefore, HAXPES is often used to reveal the surface-bulk differenc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.10463","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1909.10463/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T00:06:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EUmQK1acQTCEhHTqk545gc2p5B9cns4P+9rZs24pEgFOyhI/+Hl7p8u0Dbd36THn0rEQsEwFxdwYwgnyqGJGBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T00:11:29.661530Z"},"content_sha256":"d05b44b2dfed6d73864040aaee0fed52a4abe912b0e2a2f16e0409803a42c6da","schema_version":"1.0","event_id":"sha256:d05b44b2dfed6d73864040aaee0fed52a4abe912b0e2a2f16e0409803a42c6da"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3FYVP63VJWYTMECR7QEF4APABQ/bundle.json","state_url":"https://pith.science/pith/3FYVP63VJWYTMECR7QEF4APABQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3FYVP63VJWYTMECR7QEF4APABQ/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":"2026-07-07T00:11:29Z","links":{"resolver":"https://pith.science/pith/3FYVP63VJWYTMECR7QEF4APABQ","bundle":"https://pith.science/pith/3FYVP63VJWYTMECR7QEF4APABQ/bundle.json","state":"https://pith.science/pith/3FYVP63VJWYTMECR7QEF4APABQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3FYVP63VJWYTMECR7QEF4APABQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3FYVP63VJWYTMECR7QEF4APABQ","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":"95bc67212ce7b9d42763fa38a6c21fe86c944e0bc4df1003b4b1ab8c8cf04448","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-09-23T16:37:21Z","title_canon_sha256":"1db62369d7ffb8d2baaa642a55adc62558a4f9749c8a3236f42f024e399e3d6c"},"schema_version":"1.0","source":{"id":"1909.10463","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.10463","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"arxiv_version","alias_value":"1909.10463v1","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.10463","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"pith_short_12","alias_value":"3FYVP63VJWYT","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"pith_short_16","alias_value":"3FYVP63VJWYTMECR","created_at":"2026-07-05T00:06:20Z"},{"alias_kind":"pith_short_8","alias_value":"3FYVP63V","created_at":"2026-07-05T00:06:20Z"}],"graph_snapshots":[{"event_id":"sha256:d05b44b2dfed6d73864040aaee0fed52a4abe912b0e2a2f16e0409803a42c6da","target":"graph","created_at":"2026-07-05T00:06:20Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1909.10463/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Surface of quantum materials often exhibits significantly different behavior than the bulk due to changed topologies and symmetry protections. The outstanding problem is to find out if the exoticity of a material is linked to the changed topology at the surface or it is a bulk property. Hard x-ray photoemission spectroscopy (HAXPES) is a significantly bulk sensitive technique (escape depth of valence electrons is about 40 \\AA\\ for 6 keV photon energy) and the probing depth can be tuned by changing the electron emission angle. Therefore, HAXPES is often used to reveal the surface-bulk differenc","authors_text":"Anup Pradhan Sakhya, Arindam Pramanik, A. Thamizhavel, Kalobaran Maiti, Ram Prakash Pandeya","cross_cats":["cond-mat.mtrl-sci","cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-09-23T16:37:21Z","title":"Complex hybridization physics and evidence of structural anomaly to be a bulk property in an exotic Fe-based compound, CaFe2As2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.10463","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:e61f7418a208bfb1b895c237eb704a7da35f245b4c5ab7fd9bea54210487dee4","target":"record","created_at":"2026-07-05T00:06:20Z","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":"95bc67212ce7b9d42763fa38a6c21fe86c944e0bc4df1003b4b1ab8c8cf04448","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2019-09-23T16:37:21Z","title_canon_sha256":"1db62369d7ffb8d2baaa642a55adc62558a4f9749c8a3236f42f024e399e3d6c"},"schema_version":"1.0","source":{"id":"1909.10463","kind":"arxiv","version":1}},"canonical_sha256":"d97157fb754db1361051fc085e01e00c14ea15ab84649f2549ce4728a29e489b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d97157fb754db1361051fc085e01e00c14ea15ab84649f2549ce4728a29e489b","first_computed_at":"2026-07-05T00:06:20.606436Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:06:20.606436Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wnDmAIb97qiKha1LUREy41mAreZHlk3Cf2Y1AOd0TXULLNpWOyvPYseFnQBLsFw+aGP7Loiq+QscLS5Av8EDDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:06:20.606983Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.10463","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e61f7418a208bfb1b895c237eb704a7da35f245b4c5ab7fd9bea54210487dee4","sha256:d05b44b2dfed6d73864040aaee0fed52a4abe912b0e2a2f16e0409803a42c6da"],"state_sha256":"d828d700bfa5fb12d52b9eb3a07acd77d64a40699d8b74c507129636216aa956"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LR++X29sbFygm7X/ZXWw2tJ7M/stLqilmZ5+InGjM7G6y8bG3RV2neYRhLf3gF75WMkbsZr4aRv1bv7wV2ZGBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T00:11:29.663872Z","bundle_sha256":"9137685979e2bb552078a45c143739abbc9642a31fb832709ce7410177c5ddf8"}}