{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:G6W3Z5ULGGO3JVWTJ3YWML4FT5","short_pith_number":"pith:G6W3Z5UL","canonical_record":{"source":{"id":"1512.03917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-12-12T14:43:32Z","cross_cats_sorted":[],"title_canon_sha256":"6cf1333c3f8d49a4c237e67c9ebd32d371e4575d08976c6a3216d6461407ae06","abstract_canon_sha256":"d20087c197117713029adadd2ad2af598167aba6faa8791cf6499c60aa3a1c24"},"schema_version":"1.0"},"canonical_sha256":"37adbcf68b319db4d6d34ef1662f859f50a0bdef92c41801bcf70b7c19e16c68","source":{"kind":"arxiv","id":"1512.03917","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.03917","created_at":"2026-05-18T01:24:23Z"},{"alias_kind":"arxiv_version","alias_value":"1512.03917v1","created_at":"2026-05-18T01:24:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.03917","created_at":"2026-05-18T01:24:23Z"},{"alias_kind":"pith_short_12","alias_value":"G6W3Z5ULGGO3","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"G6W3Z5ULGGO3JVWT","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"G6W3Z5UL","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:G6W3Z5ULGGO3JVWTJ3YWML4FT5","target":"record","payload":{"canonical_record":{"source":{"id":"1512.03917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-12-12T14:43:32Z","cross_cats_sorted":[],"title_canon_sha256":"6cf1333c3f8d49a4c237e67c9ebd32d371e4575d08976c6a3216d6461407ae06","abstract_canon_sha256":"d20087c197117713029adadd2ad2af598167aba6faa8791cf6499c60aa3a1c24"},"schema_version":"1.0"},"canonical_sha256":"37adbcf68b319db4d6d34ef1662f859f50a0bdef92c41801bcf70b7c19e16c68","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:24:23.607559Z","signature_b64":"fGELMy0v4PHR/K/4if0pnp7ym7XYipHvyTEDNV05YcqTRx10KVHqGW7ezASGRA6U5YwVlXYQHNTy/fsixwueBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"37adbcf68b319db4d6d34ef1662f859f50a0bdef92c41801bcf70b7c19e16c68","last_reissued_at":"2026-05-18T01:24:23.606975Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:24:23.606975Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.03917","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":"2026-05-18T01:24:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ALB/pK+ju9LhWYgJtL2GZF2TEFYbWT56jPtO4m6eFCwK9BeIcYXseYhBtLDS5FkKJhx5VVpVJW+BSrjWOjUkBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:39:18.253024Z"},"content_sha256":"107af3fa04b8c835147edac366966fe60ad73ee20402afd6bb3521a93400d020","schema_version":"1.0","event_id":"sha256:107af3fa04b8c835147edac366966fe60ad73ee20402afd6bb3521a93400d020"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:G6W3Z5ULGGO3JVWTJ3YWML4FT5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Relaxation of nonequilibrium quasiparticles in a superconductor normal metal point contact","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"I. K. Yanson, L. F. Rybal'chenko, N. L. Bobrov, V. V. Fisun","submitted_at":"2015-12-12T14:43:32Z","abstract_excerpt":"The point-contact spectra of tantalum in the superconducting state, with $Ta$, $Cu$, and $Au$ counterelectrodes, have been studied. We discovered some new distinctive features, whose position on the $eV$ axis is determined by the critical power required for the injection of nonequilibriumquasiparticles. At this level of power the band gap $\\Delta $ decreases abruptly in the vicinity of the contact. A correction to the point-contact spectrum, with the sign opposite to that of the usual correction, arises in the region of phonon energies. The maxima in the $Ta$ spectrum become sharper and their "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.03917","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":"2026-05-18T01:24:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Iih2cmBLYfaNIaygc4AvQrnyYrRgpwO7nFKBqzFMuvm09yurdWLbWkTtMQHMPp2+aj7vbbIGF213idJ+tRXGAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:39:18.253389Z"},"content_sha256":"b25e1c5a71346b73fff855bacb06f0c1f6e89b5f8dd3bfb876389bc915be9d2e","schema_version":"1.0","event_id":"sha256:b25e1c5a71346b73fff855bacb06f0c1f6e89b5f8dd3bfb876389bc915be9d2e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G6W3Z5ULGGO3JVWTJ3YWML4FT5/bundle.json","state_url":"https://pith.science/pith/G6W3Z5ULGGO3JVWTJ3YWML4FT5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G6W3Z5ULGGO3JVWTJ3YWML4FT5/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":"2026-06-03T06:39:18Z","links":{"resolver":"https://pith.science/pith/G6W3Z5ULGGO3JVWTJ3YWML4FT5","bundle":"https://pith.science/pith/G6W3Z5ULGGO3JVWTJ3YWML4FT5/bundle.json","state":"https://pith.science/pith/G6W3Z5ULGGO3JVWTJ3YWML4FT5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G6W3Z5ULGGO3JVWTJ3YWML4FT5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:G6W3Z5ULGGO3JVWTJ3YWML4FT5","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":"d20087c197117713029adadd2ad2af598167aba6faa8791cf6499c60aa3a1c24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-12-12T14:43:32Z","title_canon_sha256":"6cf1333c3f8d49a4c237e67c9ebd32d371e4575d08976c6a3216d6461407ae06"},"schema_version":"1.0","source":{"id":"1512.03917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.03917","created_at":"2026-05-18T01:24:23Z"},{"alias_kind":"arxiv_version","alias_value":"1512.03917v1","created_at":"2026-05-18T01:24:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.03917","created_at":"2026-05-18T01:24:23Z"},{"alias_kind":"pith_short_12","alias_value":"G6W3Z5ULGGO3","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"G6W3Z5ULGGO3JVWT","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"G6W3Z5UL","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:b25e1c5a71346b73fff855bacb06f0c1f6e89b5f8dd3bfb876389bc915be9d2e","target":"graph","created_at":"2026-05-18T01:24:23Z","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":"The point-contact spectra of tantalum in the superconducting state, with $Ta$, $Cu$, and $Au$ counterelectrodes, have been studied. We discovered some new distinctive features, whose position on the $eV$ axis is determined by the critical power required for the injection of nonequilibriumquasiparticles. At this level of power the band gap $\\Delta $ decreases abruptly in the vicinity of the contact. A correction to the point-contact spectrum, with the sign opposite to that of the usual correction, arises in the region of phonon energies. The maxima in the $Ta$ spectrum become sharper and their ","authors_text":"I. K. Yanson, L. F. Rybal'chenko, N. L. Bobrov, V. V. Fisun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-12-12T14:43:32Z","title":"Relaxation of nonequilibrium quasiparticles in a superconductor normal metal point contact"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.03917","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":"sha256:107af3fa04b8c835147edac366966fe60ad73ee20402afd6bb3521a93400d020","target":"record","created_at":"2026-05-18T01:24:23Z","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":"d20087c197117713029adadd2ad2af598167aba6faa8791cf6499c60aa3a1c24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-12-12T14:43:32Z","title_canon_sha256":"6cf1333c3f8d49a4c237e67c9ebd32d371e4575d08976c6a3216d6461407ae06"},"schema_version":"1.0","source":{"id":"1512.03917","kind":"arxiv","version":1}},"canonical_sha256":"37adbcf68b319db4d6d34ef1662f859f50a0bdef92c41801bcf70b7c19e16c68","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"37adbcf68b319db4d6d34ef1662f859f50a0bdef92c41801bcf70b7c19e16c68","first_computed_at":"2026-05-18T01:24:23.606975Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:24:23.606975Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fGELMy0v4PHR/K/4if0pnp7ym7XYipHvyTEDNV05YcqTRx10KVHqGW7ezASGRA6U5YwVlXYQHNTy/fsixwueBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:24:23.607559Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.03917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:107af3fa04b8c835147edac366966fe60ad73ee20402afd6bb3521a93400d020","sha256:b25e1c5a71346b73fff855bacb06f0c1f6e89b5f8dd3bfb876389bc915be9d2e"],"state_sha256":"d4fdcf25799bac9188f78d30c11305625f1dede7b10816492393676ef29fdb5a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XO6QPmMXL0X09voCHODtJxdCUTsyOx7z/jPQEzn4P2XoHDrkRt9UaPRITek3KRHdBLFWJdf92LikEW2iR3GXCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T06:39:18.255456Z","bundle_sha256":"d1fa86fc44b8e29afcac9136a68a76f70a43a974a1fe1a7dd00c297084eff4f2"}}