{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:MZZTQU777VJJMOIFAAECTWPTTB","short_pith_number":"pith:MZZTQU77","canonical_record":{"source":{"id":"astro-ph/0310152","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-10-06T17:03:38Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"e6bd63b76390c30d3774cbb35509e3b917e9d8c0e31781d7a053ac64dff61389","abstract_canon_sha256":"0791771b031f3760ee6df1e8d2e4835ff3f6541cb3b9930f31a5d91534dd3367"},"schema_version":"1.0"},"canonical_sha256":"66733853fffd52963905000829d9f398529294d284ce2513eb73102a7fda118c","source":{"kind":"arxiv","id":"astro-ph/0310152","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0310152","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0310152v3","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0310152","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"pith_short_12","alias_value":"MZZTQU777VJJ","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"pith_short_16","alias_value":"MZZTQU777VJJMOIF","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"pith_short_8","alias_value":"MZZTQU77","created_at":"2026-07-04T16:37:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:MZZTQU777VJJMOIFAAECTWPTTB","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0310152","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-10-06T17:03:38Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"e6bd63b76390c30d3774cbb35509e3b917e9d8c0e31781d7a053ac64dff61389","abstract_canon_sha256":"0791771b031f3760ee6df1e8d2e4835ff3f6541cb3b9930f31a5d91534dd3367"},"schema_version":"1.0"},"canonical_sha256":"66733853fffd52963905000829d9f398529294d284ce2513eb73102a7fda118c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:37:29.536340Z","signature_b64":"7hqrdNWEiXJdnZpPly90kRnnEntIhQ3caLFlhZTh2u9NZLQnlb/Edhjw+oqRHZN1otGmRAdy/HN07SWZMh1CAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66733853fffd52963905000829d9f398529294d284ce2513eb73102a7fda118c","last_reissued_at":"2026-07-04T16:37:29.535946Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:37:29.535946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0310152","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:37:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JN1kR9LMoRF/+P7CQPyyR0OGxzo2Vx42O/es5c1/zygz9Sk+v+iJG0jUS8Xqa8yP0cS9z9HxajuIepuGiH4oBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T06:56:58.955010Z"},"content_sha256":"f2ba625dfe03f803d1c30e40580cae3425d1adbcdb8ee159fe47f1e781eb173c","schema_version":"1.0","event_id":"sha256:f2ba625dfe03f803d1c30e40580cae3425d1adbcdb8ee159fe47f1e781eb173c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:MZZTQU777VJJMOIFAAECTWPTTB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"IceCube-Plus: An Ultra-High Energy Neutrino Telescope","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Dan Hooper, Francis Halzen","submitted_at":"2003-10-06T17:03:38Z","abstract_excerpt":"While the first kilometer-scale neutrino telescope, IceCube, is under construction, alternative plans exist to build even larger detectors that will, however, b e limited by a much higher neutrino energy threshold of 10 PeV or higher rather than 10 to 100 GeV. These future projects detect radio and acoustic pulses as w ell as air showers initiated by ultra-high energy neutrinos. As an alternative, we here propose an expansion of IceCube, using the same strings, placed on a gri d with a spacing of order 500 m. Unlike other proposals, the expanded detector uses methods that are understood and ca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0310152","kind":"arxiv","version":3},"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/astro-ph/0310152/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":"2026-07-04T16:37:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+BidfNkOk/VaJIFw2i63xph7Qz7QLpb0G7aHIh40vQk5FHcYGg3ncr5Ul7yMmNSufuKZAY4SxlUgbYXksEN3AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T06:56:58.955537Z"},"content_sha256":"232daaa287ce09d93eba709b6c2d07105c8a3a77bda22dfab6689510a1ed9204","schema_version":"1.0","event_id":"sha256:232daaa287ce09d93eba709b6c2d07105c8a3a77bda22dfab6689510a1ed9204"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MZZTQU777VJJMOIFAAECTWPTTB/bundle.json","state_url":"https://pith.science/pith/MZZTQU777VJJMOIFAAECTWPTTB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MZZTQU777VJJMOIFAAECTWPTTB/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":"2026-08-14T06:56:58Z","links":{"resolver":"https://pith.science/pith/MZZTQU777VJJMOIFAAECTWPTTB","bundle":"https://pith.science/pith/MZZTQU777VJJMOIFAAECTWPTTB/bundle.json","state":"https://pith.science/pith/MZZTQU777VJJMOIFAAECTWPTTB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MZZTQU777VJJMOIFAAECTWPTTB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:MZZTQU777VJJMOIFAAECTWPTTB","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":"0791771b031f3760ee6df1e8d2e4835ff3f6541cb3b9930f31a5d91534dd3367","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-10-06T17:03:38Z","title_canon_sha256":"e6bd63b76390c30d3774cbb35509e3b917e9d8c0e31781d7a053ac64dff61389"},"schema_version":"1.0","source":{"id":"astro-ph/0310152","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0310152","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0310152v3","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0310152","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"pith_short_12","alias_value":"MZZTQU777VJJ","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"pith_short_16","alias_value":"MZZTQU777VJJMOIF","created_at":"2026-07-04T16:37:29Z"},{"alias_kind":"pith_short_8","alias_value":"MZZTQU77","created_at":"2026-07-04T16:37:29Z"}],"graph_snapshots":[{"event_id":"sha256:232daaa287ce09d93eba709b6c2d07105c8a3a77bda22dfab6689510a1ed9204","target":"graph","created_at":"2026-07-04T16:37:29Z","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/astro-ph/0310152/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"While the first kilometer-scale neutrino telescope, IceCube, is under construction, alternative plans exist to build even larger detectors that will, however, b e limited by a much higher neutrino energy threshold of 10 PeV or higher rather than 10 to 100 GeV. These future projects detect radio and acoustic pulses as w ell as air showers initiated by ultra-high energy neutrinos. As an alternative, we here propose an expansion of IceCube, using the same strings, placed on a gri d with a spacing of order 500 m. Unlike other proposals, the expanded detector uses methods that are understood and ca","authors_text":"Dan Hooper, Francis Halzen","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-10-06T17:03:38Z","title":"IceCube-Plus: An Ultra-High Energy Neutrino Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0310152","kind":"arxiv","version":3},"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:f2ba625dfe03f803d1c30e40580cae3425d1adbcdb8ee159fe47f1e781eb173c","target":"record","created_at":"2026-07-04T16:37:29Z","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":"0791771b031f3760ee6df1e8d2e4835ff3f6541cb3b9930f31a5d91534dd3367","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2003-10-06T17:03:38Z","title_canon_sha256":"e6bd63b76390c30d3774cbb35509e3b917e9d8c0e31781d7a053ac64dff61389"},"schema_version":"1.0","source":{"id":"astro-ph/0310152","kind":"arxiv","version":3}},"canonical_sha256":"66733853fffd52963905000829d9f398529294d284ce2513eb73102a7fda118c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"66733853fffd52963905000829d9f398529294d284ce2513eb73102a7fda118c","first_computed_at":"2026-07-04T16:37:29.535946Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:37:29.535946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7hqrdNWEiXJdnZpPly90kRnnEntIhQ3caLFlhZTh2u9NZLQnlb/Edhjw+oqRHZN1otGmRAdy/HN07SWZMh1CAA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:37:29.536340Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0310152","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2ba625dfe03f803d1c30e40580cae3425d1adbcdb8ee159fe47f1e781eb173c","sha256:232daaa287ce09d93eba709b6c2d07105c8a3a77bda22dfab6689510a1ed9204"],"state_sha256":"7ff3e263a602ced2c2b4c51baf3267295a5a2f024c36ee06dd3c53e3f5eedb15"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ynt3+TGPp4KLWrCCI2Fn0mk+BZGWfwSJ5Vt6de6tBIhY1shm74BpF8yHrDgWiCF0VKLEtioY+6lA59osFxXZDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T06:56:58.959674Z","bundle_sha256":"0d6db69bd61cde9f399ccd3b1025dad9407805bf877b647a09e084e9bd2bc064"}}