{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:R4P37HK65Y3YYLT2S66ZBEJZ7C","short_pith_number":"pith:R4P37HK6","canonical_record":{"source":{"id":"1610.06397","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-20T13:24:27Z","cross_cats_sorted":["astro-ph.HE","physics.ins-det"],"title_canon_sha256":"772d32467e4580ae84c6d6ef31e09d8847d4fbb6c9effb743999126dcd77908f","abstract_canon_sha256":"376641cb3b1e59025591c71aa1040532b5ec8d58eaab0e5a0ece7bd83e103a0e"},"schema_version":"1.0"},"canonical_sha256":"8f1fbf9d5eee378c2e7a97bd909139f89d19898b087141f2bd931881fa3f9bc8","source":{"kind":"arxiv","id":"1610.06397","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.06397","created_at":"2026-05-18T01:01:43Z"},{"alias_kind":"arxiv_version","alias_value":"1610.06397v1","created_at":"2026-05-18T01:01:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.06397","created_at":"2026-05-18T01:01:43Z"},{"alias_kind":"pith_short_12","alias_value":"R4P37HK65Y3Y","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"R4P37HK65Y3YYLT2","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"R4P37HK6","created_at":"2026-05-18T12:30:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:R4P37HK65Y3YYLT2S66ZBEJZ7C","target":"record","payload":{"canonical_record":{"source":{"id":"1610.06397","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-20T13:24:27Z","cross_cats_sorted":["astro-ph.HE","physics.ins-det"],"title_canon_sha256":"772d32467e4580ae84c6d6ef31e09d8847d4fbb6c9effb743999126dcd77908f","abstract_canon_sha256":"376641cb3b1e59025591c71aa1040532b5ec8d58eaab0e5a0ece7bd83e103a0e"},"schema_version":"1.0"},"canonical_sha256":"8f1fbf9d5eee378c2e7a97bd909139f89d19898b087141f2bd931881fa3f9bc8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:43.323811Z","signature_b64":"yQgZ68q7FxKGUUhqxuClTdxrc2GfuCZWEtzhpBiNB8FEdvA7irKJPYzOTxL10pw03BmMj9K/pTowUb+Y4lrtCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f1fbf9d5eee378c2e7a97bd909139f89d19898b087141f2bd931881fa3f9bc8","last_reissued_at":"2026-05-18T01:01:43.323306Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:43.323306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.06397","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":"2026-05-18T01:01:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w27CzmpGdGSPbrOl825jonmsEuQU1j0JjNAb3tbi5L1i2QXFEGR1QQVO2elDFwD+6Erht5czUZrikbjBEDeMBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T11:21:59.793857Z"},"content_sha256":"d5513b819fec535ba042921b3ec741ca748f03470aea926b6ddc95a9b818bcce","schema_version":"1.0","event_id":"sha256:d5513b819fec535ba042921b3ec741ca748f03470aea926b6ddc95a9b818bcce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:R4P37HK65Y3YYLT2S66ZBEJZ7C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Luminescence of water or ice as a new detection method for magnetic monopoles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","physics.ins-det"],"primary_cat":"astro-ph.IM","authors_text":"Anna Obertacke Pollmann (for the IceCube Collaboration)","submitted_at":"2016-10-20T13:24:27Z","abstract_excerpt":"Cosmic ray detectors use air as a radiator for luminescence. In water and ice, Cherenkov light is the dominant light producing mechanism when the particle's velocity exceeds the Cherenkov threshold, approximately three quarters of the speed of light in vacuum. Luminescence is produced by highly ionizing particles passing through matter due to the electronic excitation of the surrounding molecules. The observables of luminescence, such as the wavelength spectrum and decay times, are highly dependent on the properties of the medium, in particular, temperature and purity. The results for the ligh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.06397","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":"2026-05-18T01:01:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kedwstglwxT4NVvfWtjyY69Var36SNfjZPGAMmBn0D42C8m3QaRrIlu7WBu8R9wRrpvkwEnClKZKEePuzHB/Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T11:21:59.794320Z"},"content_sha256":"27517bf903ee5ce192002638676b0012306850a79d768d2b0a7af1c372fc0f0f","schema_version":"1.0","event_id":"sha256:27517bf903ee5ce192002638676b0012306850a79d768d2b0a7af1c372fc0f0f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R4P37HK65Y3YYLT2S66ZBEJZ7C/bundle.json","state_url":"https://pith.science/pith/R4P37HK65Y3YYLT2S66ZBEJZ7C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R4P37HK65Y3YYLT2S66ZBEJZ7C/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":"2026-08-09T11:21:59Z","links":{"resolver":"https://pith.science/pith/R4P37HK65Y3YYLT2S66ZBEJZ7C","bundle":"https://pith.science/pith/R4P37HK65Y3YYLT2S66ZBEJZ7C/bundle.json","state":"https://pith.science/pith/R4P37HK65Y3YYLT2S66ZBEJZ7C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R4P37HK65Y3YYLT2S66ZBEJZ7C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:R4P37HK65Y3YYLT2S66ZBEJZ7C","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":"376641cb3b1e59025591c71aa1040532b5ec8d58eaab0e5a0ece7bd83e103a0e","cross_cats_sorted":["astro-ph.HE","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-20T13:24:27Z","title_canon_sha256":"772d32467e4580ae84c6d6ef31e09d8847d4fbb6c9effb743999126dcd77908f"},"schema_version":"1.0","source":{"id":"1610.06397","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.06397","created_at":"2026-05-18T01:01:43Z"},{"alias_kind":"arxiv_version","alias_value":"1610.06397v1","created_at":"2026-05-18T01:01:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.06397","created_at":"2026-05-18T01:01:43Z"},{"alias_kind":"pith_short_12","alias_value":"R4P37HK65Y3Y","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"R4P37HK65Y3YYLT2","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"R4P37HK6","created_at":"2026-05-18T12:30:41Z"}],"graph_snapshots":[{"event_id":"sha256:27517bf903ee5ce192002638676b0012306850a79d768d2b0a7af1c372fc0f0f","target":"graph","created_at":"2026-05-18T01:01:43Z","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":"Cosmic ray detectors use air as a radiator for luminescence. In water and ice, Cherenkov light is the dominant light producing mechanism when the particle's velocity exceeds the Cherenkov threshold, approximately three quarters of the speed of light in vacuum. Luminescence is produced by highly ionizing particles passing through matter due to the electronic excitation of the surrounding molecules. The observables of luminescence, such as the wavelength spectrum and decay times, are highly dependent on the properties of the medium, in particular, temperature and purity. The results for the ligh","authors_text":"Anna Obertacke Pollmann (for the IceCube Collaboration)","cross_cats":["astro-ph.HE","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-20T13:24:27Z","title":"Luminescence of water or ice as a new detection method for magnetic monopoles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.06397","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:d5513b819fec535ba042921b3ec741ca748f03470aea926b6ddc95a9b818bcce","target":"record","created_at":"2026-05-18T01:01:43Z","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":"376641cb3b1e59025591c71aa1040532b5ec8d58eaab0e5a0ece7bd83e103a0e","cross_cats_sorted":["astro-ph.HE","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-20T13:24:27Z","title_canon_sha256":"772d32467e4580ae84c6d6ef31e09d8847d4fbb6c9effb743999126dcd77908f"},"schema_version":"1.0","source":{"id":"1610.06397","kind":"arxiv","version":1}},"canonical_sha256":"8f1fbf9d5eee378c2e7a97bd909139f89d19898b087141f2bd931881fa3f9bc8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f1fbf9d5eee378c2e7a97bd909139f89d19898b087141f2bd931881fa3f9bc8","first_computed_at":"2026-05-18T01:01:43.323306Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:43.323306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yQgZ68q7FxKGUUhqxuClTdxrc2GfuCZWEtzhpBiNB8FEdvA7irKJPYzOTxL10pw03BmMj9K/pTowUb+Y4lrtCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:43.323811Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.06397","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d5513b819fec535ba042921b3ec741ca748f03470aea926b6ddc95a9b818bcce","sha256:27517bf903ee5ce192002638676b0012306850a79d768d2b0a7af1c372fc0f0f"],"state_sha256":"5e82df62d641e59be14a8637b21661a0848d440f9b1b4a8223f9b6464e6b2940"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YptTPMtAhLdN1gOsgipHuRVEegRAjpsrBEhelyICOERDHIkl3Zdd7Ul/GU+Fvsz8vzvFAF3pSZeDLswMjFBADg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T11:21:59.797978Z","bundle_sha256":"75c7a9d4a0a32a2c3ee832771264c5d72fb98579f712337129fab72dd4efb5b2"}}