{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:T6Y6JF4LM6KBRV433ZBTWYTKWM","short_pith_number":"pith:T6Y6JF4L","canonical_record":{"source":{"id":"1808.09969","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-29T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"3fbcef29686afc775e93721a92eb19622614de8e7d895417556a68765c16040d","abstract_canon_sha256":"c47f6a9385c231a9d35bf07d98e622d7c8ddc1ed73f761be1f208f275ce180fc"},"schema_version":"1.0"},"canonical_sha256":"9fb1e4978b679418d79bde433b626ab339de3972441066a50d1f7e0912493caa","source":{"kind":"arxiv","id":"1808.09969","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.09969","created_at":"2026-05-17T23:59:50Z"},{"alias_kind":"arxiv_version","alias_value":"1808.09969v2","created_at":"2026-05-17T23:59:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.09969","created_at":"2026-05-17T23:59:50Z"},{"alias_kind":"pith_short_12","alias_value":"T6Y6JF4LM6KB","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"T6Y6JF4LM6KBRV43","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"T6Y6JF4L","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:T6Y6JF4LM6KBRV433ZBTWYTKWM","target":"record","payload":{"canonical_record":{"source":{"id":"1808.09969","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-29T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"3fbcef29686afc775e93721a92eb19622614de8e7d895417556a68765c16040d","abstract_canon_sha256":"c47f6a9385c231a9d35bf07d98e622d7c8ddc1ed73f761be1f208f275ce180fc"},"schema_version":"1.0"},"canonical_sha256":"9fb1e4978b679418d79bde433b626ab339de3972441066a50d1f7e0912493caa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:50.059449Z","signature_b64":"YZA5Tt5HNnZW+rwIzJtJYcMBME5RU3pUbiCrRz6pwJ9z0h7ecAgzsi4863UfUyl/nTPR2s7qNdokaG7fLNsCAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9fb1e4978b679418d79bde433b626ab339de3972441066a50d1f7e0912493caa","last_reissued_at":"2026-05-17T23:59:50.058949Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:50.058949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.09969","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":"2026-05-17T23:59:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3pQFPCDHzofjrBCnsGoDq3jjZogxJjlHKg+c8JNgHz4+RmP8o5bam1hI4uTxBDr7BiLk0x404gFurbvjZP7lBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:55:50.717789Z"},"content_sha256":"c6c166cc3aafcd04f911bb9a9f0053ecadff4f80e9f9adf0fca20f62181265a8","schema_version":"1.0","event_id":"sha256:c6c166cc3aafcd04f911bb9a9f0053ecadff4f80e9f9adf0fca20f62181265a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:T6Y6JF4LM6KBRV433ZBTWYTKWM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A concordance picture of FRB 121102 as a flaring magnetar embedded in a magnetized ion-electron wind nebula","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Ben Margalit, Brian D. Metzger","submitted_at":"2018-08-29T18:00:02Z","abstract_excerpt":"The fast radio burst FRB 121102 has repeated multiple times, enabling the identification of its host galaxy and of a spatially-coincident, compact, steady (`quiescent') radio synchrotron source. It was proposed that FRB 121102 is powered by a young flaring magnetar, embedded within a decades-old supernova remnant. Using a time-dependent one-zone model, we show that a single expanding magnetized electron-ion nebula (powered by the same outbursts likely responsible for the FRBs) can explain all the basic properties of the quiescent source (size, flux, self-absorption constraints) and the large b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.09969","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":"2026-05-17T23:59:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SDLrB6DJiwkVY8XVNnir6HkJuVsx0p0CGzODVURXmgWUwMboQh4X62TjX6YeMRG3LDSTjDv+nxCbBJFrQEfoBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:55:50.718122Z"},"content_sha256":"2908bad1bdcbc191d57c8dffb6816eaf6d2043464fbf05a0a2be154ad73ef067","schema_version":"1.0","event_id":"sha256:2908bad1bdcbc191d57c8dffb6816eaf6d2043464fbf05a0a2be154ad73ef067"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T6Y6JF4LM6KBRV433ZBTWYTKWM/bundle.json","state_url":"https://pith.science/pith/T6Y6JF4LM6KBRV433ZBTWYTKWM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T6Y6JF4LM6KBRV433ZBTWYTKWM/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":"2026-05-28T00:55:50Z","links":{"resolver":"https://pith.science/pith/T6Y6JF4LM6KBRV433ZBTWYTKWM","bundle":"https://pith.science/pith/T6Y6JF4LM6KBRV433ZBTWYTKWM/bundle.json","state":"https://pith.science/pith/T6Y6JF4LM6KBRV433ZBTWYTKWM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T6Y6JF4LM6KBRV433ZBTWYTKWM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:T6Y6JF4LM6KBRV433ZBTWYTKWM","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":"c47f6a9385c231a9d35bf07d98e622d7c8ddc1ed73f761be1f208f275ce180fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-29T18:00:02Z","title_canon_sha256":"3fbcef29686afc775e93721a92eb19622614de8e7d895417556a68765c16040d"},"schema_version":"1.0","source":{"id":"1808.09969","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.09969","created_at":"2026-05-17T23:59:50Z"},{"alias_kind":"arxiv_version","alias_value":"1808.09969v2","created_at":"2026-05-17T23:59:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.09969","created_at":"2026-05-17T23:59:50Z"},{"alias_kind":"pith_short_12","alias_value":"T6Y6JF4LM6KB","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"T6Y6JF4LM6KBRV43","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"T6Y6JF4L","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:2908bad1bdcbc191d57c8dffb6816eaf6d2043464fbf05a0a2be154ad73ef067","target":"graph","created_at":"2026-05-17T23:59:50Z","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":"The fast radio burst FRB 121102 has repeated multiple times, enabling the identification of its host galaxy and of a spatially-coincident, compact, steady (`quiescent') radio synchrotron source. It was proposed that FRB 121102 is powered by a young flaring magnetar, embedded within a decades-old supernova remnant. Using a time-dependent one-zone model, we show that a single expanding magnetized electron-ion nebula (powered by the same outbursts likely responsible for the FRBs) can explain all the basic properties of the quiescent source (size, flux, self-absorption constraints) and the large b","authors_text":"Ben Margalit, Brian D. Metzger","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-29T18:00:02Z","title":"A concordance picture of FRB 121102 as a flaring magnetar embedded in a magnetized ion-electron wind nebula"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.09969","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:c6c166cc3aafcd04f911bb9a9f0053ecadff4f80e9f9adf0fca20f62181265a8","target":"record","created_at":"2026-05-17T23:59:50Z","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":"c47f6a9385c231a9d35bf07d98e622d7c8ddc1ed73f761be1f208f275ce180fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-29T18:00:02Z","title_canon_sha256":"3fbcef29686afc775e93721a92eb19622614de8e7d895417556a68765c16040d"},"schema_version":"1.0","source":{"id":"1808.09969","kind":"arxiv","version":2}},"canonical_sha256":"9fb1e4978b679418d79bde433b626ab339de3972441066a50d1f7e0912493caa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9fb1e4978b679418d79bde433b626ab339de3972441066a50d1f7e0912493caa","first_computed_at":"2026-05-17T23:59:50.058949Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:50.058949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YZA5Tt5HNnZW+rwIzJtJYcMBME5RU3pUbiCrRz6pwJ9z0h7ecAgzsi4863UfUyl/nTPR2s7qNdokaG7fLNsCAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:50.059449Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.09969","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6c166cc3aafcd04f911bb9a9f0053ecadff4f80e9f9adf0fca20f62181265a8","sha256:2908bad1bdcbc191d57c8dffb6816eaf6d2043464fbf05a0a2be154ad73ef067"],"state_sha256":"28276412cbfe006695db6caee7be8f3d49cab6e042203fb03773c891e7cfe531"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jloe+ulhl+hFTNKv0CO0AmBHBOTbhNRg4/VxHeG1SfG7etyuT4jbbWWRzribK3E8L9bx1j53rjYDbiRXz3AWCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T00:55:50.720022Z","bundle_sha256":"6eefd5799f71b966a9b6d37111dbf46e273a12e34d5e5899a5f7181d9d247fe2"}}