{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:WHT2N5FK7UJJKAOGUEBRU4R6HI","short_pith_number":"pith:WHT2N5FK","canonical_record":{"source":{"id":"2308.03837","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-08-07T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"0febb98580c4a96e366b10a8b623b87ce0f8aac856f6438a6e5f372dbe419b58","abstract_canon_sha256":"2ae2cb1abd8061e7f1f9a3bc6b71659bb532fa33f253ffd8850d7098c8d2dca8"},"schema_version":"1.0"},"canonical_sha256":"b1e7a6f4aafd129501c6a1031a723e3a14bc943a7a0e48b132e07199e58e7f5b","source":{"kind":"arxiv","id":"2308.03837","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.03837","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"arxiv_version","alias_value":"2308.03837v2","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.03837","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"pith_short_12","alias_value":"WHT2N5FK7UJJ","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"pith_short_16","alias_value":"WHT2N5FK7UJJKAOG","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"pith_short_8","alias_value":"WHT2N5FK","created_at":"2026-07-05T06:49:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:WHT2N5FK7UJJKAOGUEBRU4R6HI","target":"record","payload":{"canonical_record":{"source":{"id":"2308.03837","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-08-07T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"0febb98580c4a96e366b10a8b623b87ce0f8aac856f6438a6e5f372dbe419b58","abstract_canon_sha256":"2ae2cb1abd8061e7f1f9a3bc6b71659bb532fa33f253ffd8850d7098c8d2dca8"},"schema_version":"1.0"},"canonical_sha256":"b1e7a6f4aafd129501c6a1031a723e3a14bc943a7a0e48b132e07199e58e7f5b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:49:24.626125Z","signature_b64":"Y4QZ86NKM/dhnAVrEFf2eFJ8xX1ENLB8nQtBLcTkNiKH/BS600EnLkr/Nh2K7vIxjK5HT/nJiWIDIuk6eJh5Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1e7a6f4aafd129501c6a1031a723e3a14bc943a7a0e48b132e07199e58e7f5b","last_reissued_at":"2026-07-05T06:49:24.625646Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:49:24.625646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2308.03837","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":"2026-07-05T06:49:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ICgzjpyKxqcASxnk40PnafVYTkENzuBPmSLY+VCGFspuOw83QLqF2qA1wrLo1gVU7dSgjwhVkZnyoR7/QqBMCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T20:30:22.089053Z"},"content_sha256":"c80cc1c9a1f106639c939face1f4265ff1cb143810dfe390872328d54bbc42d6","schema_version":"1.0","event_id":"sha256:c80cc1c9a1f106639c939face1f4265ff1cb143810dfe390872328d54bbc42d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:WHT2N5FK7UJJKAOGUEBRU4R6HI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Radio Emission From a $z =$ 10.1 Black Hole in UHZ1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Daniel J. Whalen, Mar Mezcua, Muhammad A. Latif","submitted_at":"2023-08-07T18:00:01Z","abstract_excerpt":"The recent discovery of a 4 $\\times$ 10$^7$ M$_{\\odot}$ black hole (BH) in UHZ1 at $z =$ 10.3, just 450 Myr after the big bang, suggests that the seeds of the first quasars may have been direct-collapse black holes (DCBHs) from the collapse of supermassive primordial stars at $z \\sim$ 20. This object was identified in James Webb Space Telescope (JWST) NIRcam and Chandra X-ray data, but recent studies suggest that radio emission from such a BH should also be visible to the Square Kilometer Array (SKA) and the next-generation Very Large Array (ngVLA). Here, we present estimates of radio flux den"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.03837","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2308.03837/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":"2026-07-05T06:49:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"evhswzd4HKbM79pCzBCelv1r85p7KcjUHDn6CdWLQrgLESnWVlV3kuOdgzh5X8kkKuFpCgKJDx8Eq2Xr7zuUCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T20:30:22.089703Z"},"content_sha256":"803d9342feac742b53a44741cd6b1efbfcf043aa9a7d490f52aef0853a1fb30d","schema_version":"1.0","event_id":"sha256:803d9342feac742b53a44741cd6b1efbfcf043aa9a7d490f52aef0853a1fb30d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WHT2N5FK7UJJKAOGUEBRU4R6HI/bundle.json","state_url":"https://pith.science/pith/WHT2N5FK7UJJKAOGUEBRU4R6HI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WHT2N5FK7UJJKAOGUEBRU4R6HI/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":"2026-08-16T20:30:22Z","links":{"resolver":"https://pith.science/pith/WHT2N5FK7UJJKAOGUEBRU4R6HI","bundle":"https://pith.science/pith/WHT2N5FK7UJJKAOGUEBRU4R6HI/bundle.json","state":"https://pith.science/pith/WHT2N5FK7UJJKAOGUEBRU4R6HI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WHT2N5FK7UJJKAOGUEBRU4R6HI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:WHT2N5FK7UJJKAOGUEBRU4R6HI","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":"2ae2cb1abd8061e7f1f9a3bc6b71659bb532fa33f253ffd8850d7098c8d2dca8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-08-07T18:00:01Z","title_canon_sha256":"0febb98580c4a96e366b10a8b623b87ce0f8aac856f6438a6e5f372dbe419b58"},"schema_version":"1.0","source":{"id":"2308.03837","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.03837","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"arxiv_version","alias_value":"2308.03837v2","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.03837","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"pith_short_12","alias_value":"WHT2N5FK7UJJ","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"pith_short_16","alias_value":"WHT2N5FK7UJJKAOG","created_at":"2026-07-05T06:49:24Z"},{"alias_kind":"pith_short_8","alias_value":"WHT2N5FK","created_at":"2026-07-05T06:49:24Z"}],"graph_snapshots":[{"event_id":"sha256:803d9342feac742b53a44741cd6b1efbfcf043aa9a7d490f52aef0853a1fb30d","target":"graph","created_at":"2026-07-05T06:49:24Z","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/2308.03837/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The recent discovery of a 4 $\\times$ 10$^7$ M$_{\\odot}$ black hole (BH) in UHZ1 at $z =$ 10.3, just 450 Myr after the big bang, suggests that the seeds of the first quasars may have been direct-collapse black holes (DCBHs) from the collapse of supermassive primordial stars at $z \\sim$ 20. This object was identified in James Webb Space Telescope (JWST) NIRcam and Chandra X-ray data, but recent studies suggest that radio emission from such a BH should also be visible to the Square Kilometer Array (SKA) and the next-generation Very Large Array (ngVLA). Here, we present estimates of radio flux den","authors_text":"Daniel J. Whalen, Mar Mezcua, Muhammad A. Latif","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-08-07T18:00:01Z","title":"Radio Emission From a $z =$ 10.1 Black Hole in UHZ1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.03837","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:c80cc1c9a1f106639c939face1f4265ff1cb143810dfe390872328d54bbc42d6","target":"record","created_at":"2026-07-05T06:49:24Z","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":"2ae2cb1abd8061e7f1f9a3bc6b71659bb532fa33f253ffd8850d7098c8d2dca8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-08-07T18:00:01Z","title_canon_sha256":"0febb98580c4a96e366b10a8b623b87ce0f8aac856f6438a6e5f372dbe419b58"},"schema_version":"1.0","source":{"id":"2308.03837","kind":"arxiv","version":2}},"canonical_sha256":"b1e7a6f4aafd129501c6a1031a723e3a14bc943a7a0e48b132e07199e58e7f5b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1e7a6f4aafd129501c6a1031a723e3a14bc943a7a0e48b132e07199e58e7f5b","first_computed_at":"2026-07-05T06:49:24.625646Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:49:24.625646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y4QZ86NKM/dhnAVrEFf2eFJ8xX1ENLB8nQtBLcTkNiKH/BS600EnLkr/Nh2K7vIxjK5HT/nJiWIDIuk6eJh5Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:49:24.626125Z","signed_message":"canonical_sha256_bytes"},"source_id":"2308.03837","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c80cc1c9a1f106639c939face1f4265ff1cb143810dfe390872328d54bbc42d6","sha256:803d9342feac742b53a44741cd6b1efbfcf043aa9a7d490f52aef0853a1fb30d"],"state_sha256":"ec29766dc27ee336a81fd104ef7bdbd06bfaffac18e7dc9488220d2eb0040bc3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G95x0tc+XPgKmxKFkMoN+zA6tymRDGBV92rhji1Ix9fP7IO0Jiiu9Faa9y5ltxZyIF5ER1C3NWQU1Tsmk5aODg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T20:30:22.095666Z","bundle_sha256":"08890f905945f7d509d1d58d9935e23dcccb47abb3336e37290741a271446f13"}}