{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:55VG35JPTRKBYKEPTRU345PGSP","short_pith_number":"pith:55VG35JP","canonical_record":{"source":{"id":"1108.6268","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-31T15:29:28Z","cross_cats_sorted":[],"title_canon_sha256":"f783d4dc7e2b58f503623aff8cb3a44bf89d9f05ad31e87422ea2acd55355780","abstract_canon_sha256":"70f6f80df7b324133a04fa65e4180b156c80c24ea15f38dc1f2dd47bac5f8858"},"schema_version":"1.0"},"canonical_sha256":"ef6a6df52f9c541c288f9c69be75e693f7c9af62e9e48d872cba8339c895ae4d","source":{"kind":"arxiv","id":"1108.6268","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.6268","created_at":"2026-05-18T02:00:43Z"},{"alias_kind":"arxiv_version","alias_value":"1108.6268v2","created_at":"2026-05-18T02:00:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.6268","created_at":"2026-05-18T02:00:43Z"},{"alias_kind":"pith_short_12","alias_value":"55VG35JPTRKB","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"55VG35JPTRKBYKEP","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"55VG35JP","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:55VG35JPTRKBYKEPTRU345PGSP","target":"record","payload":{"canonical_record":{"source":{"id":"1108.6268","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-31T15:29:28Z","cross_cats_sorted":[],"title_canon_sha256":"f783d4dc7e2b58f503623aff8cb3a44bf89d9f05ad31e87422ea2acd55355780","abstract_canon_sha256":"70f6f80df7b324133a04fa65e4180b156c80c24ea15f38dc1f2dd47bac5f8858"},"schema_version":"1.0"},"canonical_sha256":"ef6a6df52f9c541c288f9c69be75e693f7c9af62e9e48d872cba8339c895ae4d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:43.929428Z","signature_b64":"NrVx5kJ1CRT0DiuBzfmtyJWMu4nO2rJJ3QlVA9SVLVT0OLyLxiCag7jjdunDXP8nOcj3unmvxHnsEYNQBfvqBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ef6a6df52f9c541c288f9c69be75e693f7c9af62e9e48d872cba8339c895ae4d","last_reissued_at":"2026-05-18T02:00:43.928761Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:43.928761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.6268","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":"2026-05-18T02:00:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8kTlDW2/R8sQ9oLJtmF/4w830l/U4nWN/xgHCtgVW2VxdQdp2tdeygjT25N6KRQ54eJ6KdTwLHqi/cr28oi6BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:17:26.961862Z"},"content_sha256":"780b62e82188b05383d8bfd747b7cae6bde3981893d035e28800254dad21068a","schema_version":"1.0","event_id":"sha256:780b62e82188b05383d8bfd747b7cae6bde3981893d035e28800254dad21068a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:55VG35JPTRKBYKEPTRU345PGSP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A derivation of the free-free emission on the Galactic plane between l=20 and 44 degrees","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Clive Dickinson, Lister Staveley-Smith, Mark Calabretta, Marta I. R. Alves, Richard Davis, Rodney D. Davies","submitted_at":"2011-08-31T15:29:28Z","abstract_excerpt":"We present the derivation of the free-free emission on the Galactic plane between l=20 and 44 degrees and |b| < 4 degrees, using Radio Recombination Line (RRL) data from the HI Parkes All-Sky Survey (HIPASS). Following an upgrade on the RRL data reduction technique, which improves significantly the quality of the final RRL spectra, we have extended the analysis to three times the area covered in Alves et al. (2010). The final RRL map has an angular resolution of 14.8 arcmin and a velocity resolution of 20 km/s.\n  A map of the electron temperature (Te) of the ionised gas is derived for the area"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.6268","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":"2026-05-18T02:00:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bKIJhXxDwBw8bewwEclEzSD0TpAOABVduixrCXWeoS2AjRJB80fe+PLwZlUeLeqqoaUOlKXPjn+0Cs6q+JzwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:17:26.962249Z"},"content_sha256":"d8bc7ecf0b0e30ed29bdf9944a2d80eedf5434b13e37893a062e5b75e7c16015","schema_version":"1.0","event_id":"sha256:d8bc7ecf0b0e30ed29bdf9944a2d80eedf5434b13e37893a062e5b75e7c16015"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/55VG35JPTRKBYKEPTRU345PGSP/bundle.json","state_url":"https://pith.science/pith/55VG35JPTRKBYKEPTRU345PGSP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/55VG35JPTRKBYKEPTRU345PGSP/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":"2026-05-30T13:17:26Z","links":{"resolver":"https://pith.science/pith/55VG35JPTRKBYKEPTRU345PGSP","bundle":"https://pith.science/pith/55VG35JPTRKBYKEPTRU345PGSP/bundle.json","state":"https://pith.science/pith/55VG35JPTRKBYKEPTRU345PGSP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/55VG35JPTRKBYKEPTRU345PGSP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:55VG35JPTRKBYKEPTRU345PGSP","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":"70f6f80df7b324133a04fa65e4180b156c80c24ea15f38dc1f2dd47bac5f8858","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-31T15:29:28Z","title_canon_sha256":"f783d4dc7e2b58f503623aff8cb3a44bf89d9f05ad31e87422ea2acd55355780"},"schema_version":"1.0","source":{"id":"1108.6268","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.6268","created_at":"2026-05-18T02:00:43Z"},{"alias_kind":"arxiv_version","alias_value":"1108.6268v2","created_at":"2026-05-18T02:00:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.6268","created_at":"2026-05-18T02:00:43Z"},{"alias_kind":"pith_short_12","alias_value":"55VG35JPTRKB","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"55VG35JPTRKBYKEP","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"55VG35JP","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:d8bc7ecf0b0e30ed29bdf9944a2d80eedf5434b13e37893a062e5b75e7c16015","target":"graph","created_at":"2026-05-18T02:00:43Z","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":"We present the derivation of the free-free emission on the Galactic plane between l=20 and 44 degrees and |b| < 4 degrees, using Radio Recombination Line (RRL) data from the HI Parkes All-Sky Survey (HIPASS). Following an upgrade on the RRL data reduction technique, which improves significantly the quality of the final RRL spectra, we have extended the analysis to three times the area covered in Alves et al. (2010). The final RRL map has an angular resolution of 14.8 arcmin and a velocity resolution of 20 km/s.\n  A map of the electron temperature (Te) of the ionised gas is derived for the area","authors_text":"Clive Dickinson, Lister Staveley-Smith, Mark Calabretta, Marta I. R. Alves, Richard Davis, Rodney D. Davies","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-31T15:29:28Z","title":"A derivation of the free-free emission on the Galactic plane between l=20 and 44 degrees"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.6268","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":"sha256:780b62e82188b05383d8bfd747b7cae6bde3981893d035e28800254dad21068a","target":"record","created_at":"2026-05-18T02:00:43Z","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":"70f6f80df7b324133a04fa65e4180b156c80c24ea15f38dc1f2dd47bac5f8858","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-31T15:29:28Z","title_canon_sha256":"f783d4dc7e2b58f503623aff8cb3a44bf89d9f05ad31e87422ea2acd55355780"},"schema_version":"1.0","source":{"id":"1108.6268","kind":"arxiv","version":2}},"canonical_sha256":"ef6a6df52f9c541c288f9c69be75e693f7c9af62e9e48d872cba8339c895ae4d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef6a6df52f9c541c288f9c69be75e693f7c9af62e9e48d872cba8339c895ae4d","first_computed_at":"2026-05-18T02:00:43.928761Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:43.928761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NrVx5kJ1CRT0DiuBzfmtyJWMu4nO2rJJ3QlVA9SVLVT0OLyLxiCag7jjdunDXP8nOcj3unmvxHnsEYNQBfvqBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:43.929428Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.6268","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:780b62e82188b05383d8bfd747b7cae6bde3981893d035e28800254dad21068a","sha256:d8bc7ecf0b0e30ed29bdf9944a2d80eedf5434b13e37893a062e5b75e7c16015"],"state_sha256":"f71231104e7762d641b671704fca1770490faae0c229be04c530145a66559a9d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FjiCvq6zFm5SUvNduvzfbPJEHxG0bM+LjsXou0bam52YQfFQILU3mtFDHop9lys4HJ33KgKn2vtgcw4Ggv29CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T13:17:26.964675Z","bundle_sha256":"8ec1035d85e7397251c969518975d8646e448686678e9ff670cebaaab7d58490"}}