{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:QMIT4FEREO536AAJ6XZYBJTI3O","short_pith_number":"pith:QMIT4FER","canonical_record":{"source":{"id":"1605.00694","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2016-05-02T21:36:01Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"cb83ba914c7830c1ba37768acc97083c37577b1dd7ed4784e8b8d4086447c480","abstract_canon_sha256":"bc528210a6602979868a295ee0c591a2dc83a4f070101216a7b136d6a28a0691"},"schema_version":"1.0"},"canonical_sha256":"83113e149123bbbf0009f5f380a668dbbf20145c86fd22e3a9d9b68935a78b2f","source":{"kind":"arxiv","id":"1605.00694","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.00694","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"arxiv_version","alias_value":"1605.00694v2","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.00694","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"pith_short_12","alias_value":"QMIT4FEREO53","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"QMIT4FEREO536AAJ","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"QMIT4FER","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:QMIT4FEREO536AAJ6XZYBJTI3O","target":"record","payload":{"canonical_record":{"source":{"id":"1605.00694","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2016-05-02T21:36:01Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"cb83ba914c7830c1ba37768acc97083c37577b1dd7ed4784e8b8d4086447c480","abstract_canon_sha256":"bc528210a6602979868a295ee0c591a2dc83a4f070101216a7b136d6a28a0691"},"schema_version":"1.0"},"canonical_sha256":"83113e149123bbbf0009f5f380a668dbbf20145c86fd22e3a9d9b68935a78b2f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:00:25.542569Z","signature_b64":"qb6dIkOTMh0ZTRonZl9QrN5IJbibd0q18QIQbSo/W7HwbpGX61atCIwZEjXtmP4UYsCMvJwH//lA1GI53d/5Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"83113e149123bbbf0009f5f380a668dbbf20145c86fd22e3a9d9b68935a78b2f","last_reissued_at":"2026-05-18T01:00:25.541950Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:00:25.541950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.00694","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:00:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uLOk0kBW5MmfgKX38ji/tm9ShVjw6ZK6Ouz5/h2Mi3vGonaxUL7CmUNJSEVbnaGQgVXEPNAh1w+XuLygA+LXBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T04:58:54.966162Z"},"content_sha256":"638113c09f29584040ad1c04030b79a81ddd794fc18afd3ea8ae74959a3667ef","schema_version":"1.0","event_id":"sha256:638113c09f29584040ad1c04030b79a81ddd794fc18afd3ea8ae74959a3667ef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:QMIT4FEREO536AAJ6XZYBJTI3O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Calorimetric observation of single He2* excimers in a 100 mK He bath","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"cond-mat.other","authors_text":"D. E. Prober, D. N. McKinsey, F. W. Carter, M. J. Rooks, P. V. E. McClintock, S. A. Hertel","submitted_at":"2016-05-02T21:36:01Z","abstract_excerpt":"We report the first calorimetric detection of individual He2* excimers within a bath of superfluid 4He. The detector used in this work is a single superconducting titanium transition edge sensor (TES) with an energy resolution of ~1 eV, immersed directly in the helium bath. He2* excimers are produced in the surrounding bath using an external gamma-ray source. These excimers exist either as short-lived singlet or long-lived triplet states. We demonstrate detection of both states: in the singlet case the calorimeter records the absorption of a prompt 15 eV photon, and in the triplet case the cal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.00694","kind":"arxiv","version":2},"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":"2026-05-18T01:00:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jkp0gEEwrJj54RkZMf+V9TtCBTcugxGaoIB0QoWjjtO5d29l1M/e5ePEdIUK6/l8GT3AuJSAMWhpJPHOV15RDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T04:58:54.966835Z"},"content_sha256":"ecd116673f9e2cf0e66eb3a81d36ec38f385847dcfb4b6ac7b7a1091c1bf1221","schema_version":"1.0","event_id":"sha256:ecd116673f9e2cf0e66eb3a81d36ec38f385847dcfb4b6ac7b7a1091c1bf1221"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QMIT4FEREO536AAJ6XZYBJTI3O/bundle.json","state_url":"https://pith.science/pith/QMIT4FEREO536AAJ6XZYBJTI3O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QMIT4FEREO536AAJ6XZYBJTI3O/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":"2026-06-09T04:58:54Z","links":{"resolver":"https://pith.science/pith/QMIT4FEREO536AAJ6XZYBJTI3O","bundle":"https://pith.science/pith/QMIT4FEREO536AAJ6XZYBJTI3O/bundle.json","state":"https://pith.science/pith/QMIT4FEREO536AAJ6XZYBJTI3O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QMIT4FEREO536AAJ6XZYBJTI3O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:QMIT4FEREO536AAJ6XZYBJTI3O","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":"bc528210a6602979868a295ee0c591a2dc83a4f070101216a7b136d6a28a0691","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2016-05-02T21:36:01Z","title_canon_sha256":"cb83ba914c7830c1ba37768acc97083c37577b1dd7ed4784e8b8d4086447c480"},"schema_version":"1.0","source":{"id":"1605.00694","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.00694","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"arxiv_version","alias_value":"1605.00694v2","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.00694","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"pith_short_12","alias_value":"QMIT4FEREO53","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"QMIT4FEREO536AAJ","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"QMIT4FER","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:ecd116673f9e2cf0e66eb3a81d36ec38f385847dcfb4b6ac7b7a1091c1bf1221","target":"graph","created_at":"2026-05-18T01:00:25Z","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":"We report the first calorimetric detection of individual He2* excimers within a bath of superfluid 4He. The detector used in this work is a single superconducting titanium transition edge sensor (TES) with an energy resolution of ~1 eV, immersed directly in the helium bath. He2* excimers are produced in the surrounding bath using an external gamma-ray source. These excimers exist either as short-lived singlet or long-lived triplet states. We demonstrate detection of both states: in the singlet case the calorimeter records the absorption of a prompt 15 eV photon, and in the triplet case the cal","authors_text":"D. E. Prober, D. N. McKinsey, F. W. Carter, M. J. Rooks, P. V. E. McClintock, S. A. Hertel","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2016-05-02T21:36:01Z","title":"Calorimetric observation of single He2* excimers in a 100 mK He bath"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.00694","kind":"arxiv","version":2},"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":"sha256:638113c09f29584040ad1c04030b79a81ddd794fc18afd3ea8ae74959a3667ef","target":"record","created_at":"2026-05-18T01:00:25Z","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":"bc528210a6602979868a295ee0c591a2dc83a4f070101216a7b136d6a28a0691","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2016-05-02T21:36:01Z","title_canon_sha256":"cb83ba914c7830c1ba37768acc97083c37577b1dd7ed4784e8b8d4086447c480"},"schema_version":"1.0","source":{"id":"1605.00694","kind":"arxiv","version":2}},"canonical_sha256":"83113e149123bbbf0009f5f380a668dbbf20145c86fd22e3a9d9b68935a78b2f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"83113e149123bbbf0009f5f380a668dbbf20145c86fd22e3a9d9b68935a78b2f","first_computed_at":"2026-05-18T01:00:25.541950Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:25.541950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qb6dIkOTMh0ZTRonZl9QrN5IJbibd0q18QIQbSo/W7HwbpGX61atCIwZEjXtmP4UYsCMvJwH//lA1GI53d/5Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:25.542569Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.00694","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:638113c09f29584040ad1c04030b79a81ddd794fc18afd3ea8ae74959a3667ef","sha256:ecd116673f9e2cf0e66eb3a81d36ec38f385847dcfb4b6ac7b7a1091c1bf1221"],"state_sha256":"87782e552d565473ad5288c7892c430bb561031659365194ab78881526aea368"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0RkUYkCzjk2kdMubDnLGQjEbjkgZz/Ahd1ISGjpqypUMTDQUTBNXmqjwo+G3vhoZDkcB4Gv9WTOLBTyo+C0kDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T04:58:54.970479Z","bundle_sha256":"1f38eff71e568afa3db197337433d6b249f1f4684d97a95f26b460abd5278fa5"}}