{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:B2NYR55WDUI23VXVTO26HJ4FYR","short_pith_number":"pith:B2NYR55W","canonical_record":{"source":{"id":"0904.1309","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-08T11:23:35Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"147a8f9d1d8d9bc3d1fa069d26140c3fcbb75fc3cd9bc8609e6777174158d62f","abstract_canon_sha256":"fafcc4bfaa53658dc9aa9282eb9ed57f87441b587cccdb35b08d8583abce9ff9"},"schema_version":"1.0"},"canonical_sha256":"0e9b88f7b61d11add6f59bb5e3a785c445c8a5b0903540d7d506aa7f6a596eed","source":{"kind":"arxiv","id":"0904.1309","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1309","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1309v1","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1309","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"pith_short_12","alias_value":"B2NYR55WDUI2","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"B2NYR55WDUI23VXV","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"B2NYR55W","created_at":"2026-07-04T17:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:B2NYR55WDUI23VXVTO26HJ4FYR","target":"record","payload":{"canonical_record":{"source":{"id":"0904.1309","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-08T11:23:35Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"147a8f9d1d8d9bc3d1fa069d26140c3fcbb75fc3cd9bc8609e6777174158d62f","abstract_canon_sha256":"fafcc4bfaa53658dc9aa9282eb9ed57f87441b587cccdb35b08d8583abce9ff9"},"schema_version":"1.0"},"canonical_sha256":"0e9b88f7b61d11add6f59bb5e3a785c445c8a5b0903540d7d506aa7f6a596eed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:27:34.588667Z","signature_b64":"nbfWEgzBdeRPv0GK2xav0jhza40F6wU54Jo8L6gUBK+wGngiapoS2u/WQJuw8BcJQiTNf3NF0HjexQ3m/mgWAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e9b88f7b61d11add6f59bb5e3a785c445c8a5b0903540d7d506aa7f6a596eed","last_reissued_at":"2026-07-04T17:27:34.588236Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:27:34.588236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.1309","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":"2026-07-04T17:27:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v/svfXaohhrYMSxnp1/PXKdhq+Yx5589svix71y0QsCk4Sx2WHJC5pE+6Ou4DRJ2VxWhduPig7hzF/eB0uZoCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T02:02:42.260871Z"},"content_sha256":"a27eabb2225b7cf15a645b92e828b90416721eca3a10b6728aa3685ea8e8c058","schema_version":"1.0","event_id":"sha256:a27eabb2225b7cf15a645b92e828b90416721eca3a10b6728aa3685ea8e8c058"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:B2NYR55WDUI23VXVTO26HJ4FYR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"IceRay: An IceCube-centered Radio-Cherenkov GZK Neutrino Detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.HE","authors_text":"A. Connolly, A. Karle, C. Miki, C. Rott, D. Seckel, D. Williams, F. Halzen, G. Varner, H. Landsman, J. Beatty, J. Learned, J. L. Kelley, K. Hanson, K. Hoffman, L. Ruckman, M. DuVernois, P. Allison, P. Chen, P. Gorham, R. Morse, R. Nichol","submitted_at":"2009-04-08T11:23:35Z","abstract_excerpt":"We discuss design considerations and simulation results for IceRay, a proposed large-scale ultra-high energy (UHE) neutrino detector at the South Pole. The array is designed to detect the coherent Askaryan radio emission from UHE neutrino interactions in the ice, with the goal of detecting the cosmogenic neutrino flux with reasonable event rates. Operating in coincidence with the IceCube neutrino detector would allow complete calorimetry of a subset of the events. We also report on the status of a testbed IceRay station which incorporates both ANITA and IceCube technology and will provide year"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1309","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/0904.1309/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":"2026-07-04T17:27:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GvsebENrGqdQ7n2UFk222vtM0IRlwLgNFYMZfc/8fiR/Vb25ruRb/POqwMuLDj0/Ea7TVxwjbKWDufCTtJflCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T02:02:42.261258Z"},"content_sha256":"a23ee5d23ab0e639d1e7a0dda147bc7abb1fd7b71808a9164cd117ff096c4bae","schema_version":"1.0","event_id":"sha256:a23ee5d23ab0e639d1e7a0dda147bc7abb1fd7b71808a9164cd117ff096c4bae"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B2NYR55WDUI23VXVTO26HJ4FYR/bundle.json","state_url":"https://pith.science/pith/B2NYR55WDUI23VXVTO26HJ4FYR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B2NYR55WDUI23VXVTO26HJ4FYR/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":"2026-07-11T02:02:42Z","links":{"resolver":"https://pith.science/pith/B2NYR55WDUI23VXVTO26HJ4FYR","bundle":"https://pith.science/pith/B2NYR55WDUI23VXVTO26HJ4FYR/bundle.json","state":"https://pith.science/pith/B2NYR55WDUI23VXVTO26HJ4FYR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B2NYR55WDUI23VXVTO26HJ4FYR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:B2NYR55WDUI23VXVTO26HJ4FYR","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":"fafcc4bfaa53658dc9aa9282eb9ed57f87441b587cccdb35b08d8583abce9ff9","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-08T11:23:35Z","title_canon_sha256":"147a8f9d1d8d9bc3d1fa069d26140c3fcbb75fc3cd9bc8609e6777174158d62f"},"schema_version":"1.0","source":{"id":"0904.1309","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1309","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1309v1","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1309","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"pith_short_12","alias_value":"B2NYR55WDUI2","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"B2NYR55WDUI23VXV","created_at":"2026-07-04T17:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"B2NYR55W","created_at":"2026-07-04T17:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:a23ee5d23ab0e639d1e7a0dda147bc7abb1fd7b71808a9164cd117ff096c4bae","target":"graph","created_at":"2026-07-04T17:27:34Z","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/0904.1309/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We discuss design considerations and simulation results for IceRay, a proposed large-scale ultra-high energy (UHE) neutrino detector at the South Pole. The array is designed to detect the coherent Askaryan radio emission from UHE neutrino interactions in the ice, with the goal of detecting the cosmogenic neutrino flux with reasonable event rates. Operating in coincidence with the IceCube neutrino detector would allow complete calorimetry of a subset of the events. We also report on the status of a testbed IceRay station which incorporates both ANITA and IceCube technology and will provide year","authors_text":"A. Connolly, A. Karle, C. Miki, C. Rott, D. Seckel, D. Williams, F. Halzen, G. Varner, H. Landsman, J. Beatty, J. Learned, J. L. Kelley, K. Hanson, K. Hoffman, L. Ruckman, M. DuVernois, P. Allison, P. Chen, P. Gorham, R. Morse, R. Nichol","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-08T11:23:35Z","title":"IceRay: An IceCube-centered Radio-Cherenkov GZK Neutrino Detector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1309","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:a27eabb2225b7cf15a645b92e828b90416721eca3a10b6728aa3685ea8e8c058","target":"record","created_at":"2026-07-04T17:27:34Z","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":"fafcc4bfaa53658dc9aa9282eb9ed57f87441b587cccdb35b08d8583abce9ff9","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-08T11:23:35Z","title_canon_sha256":"147a8f9d1d8d9bc3d1fa069d26140c3fcbb75fc3cd9bc8609e6777174158d62f"},"schema_version":"1.0","source":{"id":"0904.1309","kind":"arxiv","version":1}},"canonical_sha256":"0e9b88f7b61d11add6f59bb5e3a785c445c8a5b0903540d7d506aa7f6a596eed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e9b88f7b61d11add6f59bb5e3a785c445c8a5b0903540d7d506aa7f6a596eed","first_computed_at":"2026-07-04T17:27:34.588236Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:27:34.588236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nbfWEgzBdeRPv0GK2xav0jhza40F6wU54Jo8L6gUBK+wGngiapoS2u/WQJuw8BcJQiTNf3NF0HjexQ3m/mgWAg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:27:34.588667Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.1309","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a27eabb2225b7cf15a645b92e828b90416721eca3a10b6728aa3685ea8e8c058","sha256:a23ee5d23ab0e639d1e7a0dda147bc7abb1fd7b71808a9164cd117ff096c4bae"],"state_sha256":"a7b6cbfce2662b856eea82cae40ab345e1537e83498d3b7ae456c80cfc70e2e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XMAjFkwQdUmFljL9D0WdUq/UBEdKy3aCz5M42MecPQgEtEEi60qu3hkUfq6z4dHZFltY5ixMKghk6mUdqLkiAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T02:02:42.264198Z","bundle_sha256":"45c75e5259b08db45e30e66e7880d4588b902b87ee67d6d923818e3ef404fab6"}}