{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:VF3F5X3CXL5S6OB3NRGRDAGBTT","short_pith_number":"pith:VF3F5X3C","canonical_record":{"source":{"id":"1311.4753","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-19T14:35:45Z","cross_cats_sorted":[],"title_canon_sha256":"088395dfe07217234bb8bd267be4b69956a12e908f4268c3a0680daa8a1e2224","abstract_canon_sha256":"79868c717e3a2b8e083f7e9f4ca2506b9d20cf423bd71e5e1343602266dd47ab"},"schema_version":"1.0"},"canonical_sha256":"a9765edf62bafb2f383b6c4d1180c19cd206198dfac679cf136d45046e7bf743","source":{"kind":"arxiv","id":"1311.4753","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.4753","created_at":"2026-05-18T03:06:43Z"},{"alias_kind":"arxiv_version","alias_value":"1311.4753v1","created_at":"2026-05-18T03:06:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.4753","created_at":"2026-05-18T03:06:43Z"},{"alias_kind":"pith_short_12","alias_value":"VF3F5X3CXL5S","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VF3F5X3CXL5S6OB3","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VF3F5X3C","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:VF3F5X3CXL5S6OB3NRGRDAGBTT","target":"record","payload":{"canonical_record":{"source":{"id":"1311.4753","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-19T14:35:45Z","cross_cats_sorted":[],"title_canon_sha256":"088395dfe07217234bb8bd267be4b69956a12e908f4268c3a0680daa8a1e2224","abstract_canon_sha256":"79868c717e3a2b8e083f7e9f4ca2506b9d20cf423bd71e5e1343602266dd47ab"},"schema_version":"1.0"},"canonical_sha256":"a9765edf62bafb2f383b6c4d1180c19cd206198dfac679cf136d45046e7bf743","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:06:43.557960Z","signature_b64":"cBZU0RbKeoFF+XzxqohdFV7Ao5Vy7UQDrQZhSqhC7b0KnQeITmtqc1B9ecag43BWdvGwdKyH1oXp1aHPhVFxAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9765edf62bafb2f383b6c4d1180c19cd206198dfac679cf136d45046e7bf743","last_reissued_at":"2026-05-18T03:06:43.557496Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:06:43.557496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.4753","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":"2026-05-18T03:06:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/2JG1d+m2fuz7ppolSXZQIRlO7b5eTGyJ0GpMPktqb7QSH0tp2qghrjfqauEGAOVwNAzCSSgtoEIy7aWzje9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T16:33:22.478583Z"},"content_sha256":"56e362e28f43fd3dfd0314d5c1808778f423e713f33f2f2fe9fd35c3a5b6a9d1","schema_version":"1.0","event_id":"sha256:56e362e28f43fd3dfd0314d5c1808778f423e713f33f2f2fe9fd35c3a5b6a9d1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:VF3F5X3CXL5S6OB3NRGRDAGBTT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Radio Characterization of Galactic compact Bubbles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Adriano Ingallinera, Alberto Noriega-Crespo, Carla Buemi, Claudia Agliozzo, Corrado Trigilio, Grazia Umana, Nicolas Flagey, Paolo Leto, Roberta Paladini","submitted_at":"2013-11-19T14:35:45Z","abstract_excerpt":"We report the radio observations of a sub-sample of the 428 galactic compact bubbles discovered at 24 $\\mu$m with the MIPSGAL survey. Pervasive through the entire Galactic plane, these objects are thought to be different kinds of evolved stars. The very large majority of the bubbles (~ 70%) are however not yet classified. We conducted radio observations with the EVLA at 6 cm and 20 cm in order to obtain the spectral index of 55 bubbles. We found that at least 70 per cent of the 31 bubbles for which we were effectively able to compute the spectral index (or its lower limit) are likely to be the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.4753","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":""},"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":"2026-05-18T03:06:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aZ6jODnqUijZedmXom2Er5RVunL5tT6qNjn1hIM44lA9JlupnRoL8hRg8KPaXKDQN3NxAMtp+jdWXIJqPj6EAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T16:33:22.479260Z"},"content_sha256":"38406764ec75d0a714ed50f3694944dd2906dd778ebf7465e749ca3f6e38bdad","schema_version":"1.0","event_id":"sha256:38406764ec75d0a714ed50f3694944dd2906dd778ebf7465e749ca3f6e38bdad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VF3F5X3CXL5S6OB3NRGRDAGBTT/bundle.json","state_url":"https://pith.science/pith/VF3F5X3CXL5S6OB3NRGRDAGBTT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VF3F5X3CXL5S6OB3NRGRDAGBTT/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":"2026-05-30T16:33:22Z","links":{"resolver":"https://pith.science/pith/VF3F5X3CXL5S6OB3NRGRDAGBTT","bundle":"https://pith.science/pith/VF3F5X3CXL5S6OB3NRGRDAGBTT/bundle.json","state":"https://pith.science/pith/VF3F5X3CXL5S6OB3NRGRDAGBTT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VF3F5X3CXL5S6OB3NRGRDAGBTT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:VF3F5X3CXL5S6OB3NRGRDAGBTT","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":"79868c717e3a2b8e083f7e9f4ca2506b9d20cf423bd71e5e1343602266dd47ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-19T14:35:45Z","title_canon_sha256":"088395dfe07217234bb8bd267be4b69956a12e908f4268c3a0680daa8a1e2224"},"schema_version":"1.0","source":{"id":"1311.4753","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.4753","created_at":"2026-05-18T03:06:43Z"},{"alias_kind":"arxiv_version","alias_value":"1311.4753v1","created_at":"2026-05-18T03:06:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.4753","created_at":"2026-05-18T03:06:43Z"},{"alias_kind":"pith_short_12","alias_value":"VF3F5X3CXL5S","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VF3F5X3CXL5S6OB3","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VF3F5X3C","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:38406764ec75d0a714ed50f3694944dd2906dd778ebf7465e749ca3f6e38bdad","target":"graph","created_at":"2026-05-18T03:06:43Z","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 report the radio observations of a sub-sample of the 428 galactic compact bubbles discovered at 24 $\\mu$m with the MIPSGAL survey. Pervasive through the entire Galactic plane, these objects are thought to be different kinds of evolved stars. The very large majority of the bubbles (~ 70%) are however not yet classified. We conducted radio observations with the EVLA at 6 cm and 20 cm in order to obtain the spectral index of 55 bubbles. We found that at least 70 per cent of the 31 bubbles for which we were effectively able to compute the spectral index (or its lower limit) are likely to be the","authors_text":"Adriano Ingallinera, Alberto Noriega-Crespo, Carla Buemi, Claudia Agliozzo, Corrado Trigilio, Grazia Umana, Nicolas Flagey, Paolo Leto, Roberta Paladini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-19T14:35:45Z","title":"A Radio Characterization of Galactic compact Bubbles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.4753","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":"sha256:56e362e28f43fd3dfd0314d5c1808778f423e713f33f2f2fe9fd35c3a5b6a9d1","target":"record","created_at":"2026-05-18T03:06:43Z","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":"79868c717e3a2b8e083f7e9f4ca2506b9d20cf423bd71e5e1343602266dd47ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-19T14:35:45Z","title_canon_sha256":"088395dfe07217234bb8bd267be4b69956a12e908f4268c3a0680daa8a1e2224"},"schema_version":"1.0","source":{"id":"1311.4753","kind":"arxiv","version":1}},"canonical_sha256":"a9765edf62bafb2f383b6c4d1180c19cd206198dfac679cf136d45046e7bf743","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9765edf62bafb2f383b6c4d1180c19cd206198dfac679cf136d45046e7bf743","first_computed_at":"2026-05-18T03:06:43.557496Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:06:43.557496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cBZU0RbKeoFF+XzxqohdFV7Ao5Vy7UQDrQZhSqhC7b0KnQeITmtqc1B9ecag43BWdvGwdKyH1oXp1aHPhVFxAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:06:43.557960Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.4753","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56e362e28f43fd3dfd0314d5c1808778f423e713f33f2f2fe9fd35c3a5b6a9d1","sha256:38406764ec75d0a714ed50f3694944dd2906dd778ebf7465e749ca3f6e38bdad"],"state_sha256":"603e09c16bbbab8478290479b2eeaaa6ada14ad3e11d228a6445fccf569772f1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mgNo9S3/dbs8A/VpZpY5/ut2wj9En9rwPJhbUKaKqUt75PcY+ZFENz2ZUVios6gkbRJ0ZQQLc0edEg8B9RnECA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T16:33:22.482699Z","bundle_sha256":"785cd7367a6afd52e2c380032f7caadd631eb1c87d8fd31821ef138d0b4851ef"}}