{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:KQBRDQ74YTPOBXFCXS4BVIGAJC","short_pith_number":"pith:KQBRDQ74","canonical_record":{"source":{"id":"0904.3793","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-24T03:55:14Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"3b575745b34cb4f428d0965d54e850c3335da4f5c91a56a06f596a9f689ed88c","abstract_canon_sha256":"50e7f781e7b67fa3a69e20a07532da3185cf4bd4c63d6925873fda757f6b62ba"},"schema_version":"1.0"},"canonical_sha256":"540311c3fcc4dee0dca2bcb81aa0c048bcb9f749162b164877b4e65e321a528d","source":{"kind":"arxiv","id":"0904.3793","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.3793","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"arxiv_version","alias_value":"0904.3793v1","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.3793","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"pith_short_12","alias_value":"KQBRDQ74YTPO","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KQBRDQ74YTPOBXFC","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KQBRDQ74","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:KQBRDQ74YTPOBXFCXS4BVIGAJC","target":"record","payload":{"canonical_record":{"source":{"id":"0904.3793","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-24T03:55:14Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"3b575745b34cb4f428d0965d54e850c3335da4f5c91a56a06f596a9f689ed88c","abstract_canon_sha256":"50e7f781e7b67fa3a69e20a07532da3185cf4bd4c63d6925873fda757f6b62ba"},"schema_version":"1.0"},"canonical_sha256":"540311c3fcc4dee0dca2bcb81aa0c048bcb9f749162b164877b4e65e321a528d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:57.636367Z","signature_b64":"u2v34GLsVeSFiib4QK416LYgW0cQkUMpvB/rlGhY+/MyKd0jVdN6KaTM750fJjNi8Ac47zOUxlm8nny8V6LGBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"540311c3fcc4dee0dca2bcb81aa0c048bcb9f749162b164877b4e65e321a528d","last_reissued_at":"2026-05-18T02:13:57.635709Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:57.635709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.3793","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":"2026-05-18T02:13:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sYLXeK0NIh9FrDvEa8jMVH7NGWw5rEIyAYluCCwGhSZCfBJ1z06woY4l8lYsdog1baIfjUMgesC61WMuEm2fDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:55:10.520358Z"},"content_sha256":"36e5a267552e3dd9974857152888999a0966ea5be52b6e3c421b516142fa16b9","schema_version":"1.0","event_id":"sha256:36e5a267552e3dd9974857152888999a0966ea5be52b6e3c421b516142fa16b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:KQBRDQ74YTPOBXFCXS4BVIGAJC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strong [CII] emission at high redshift","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"C. De Breuck, M. Meneghetti, M. Walmsley, P. Caselli, R. Maiolino, T. Nagao","submitted_at":"2009-04-24T03:55:14Z","abstract_excerpt":"We report the detection of the [CII]157.74um fine-structure line in the lensed galaxy BRI 0952-0115 at z=4.43, using the APEX telescope. This is the first detection of the [CII] line in a source with L_FIR < 10^13 L_sun at high redshift. The line is very strong compared to previous [CII] detections at high-z (a factor of 5-8 higher in flux), partly due to the lensing amplification. The L_[CII]/L_FIR ratio is 10^-2.9, which is higher than observed in local galaxies with similar infrared luminosities. Together with previous observations of [CII] at high redshift, our result suggests that the [CI"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.3793","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":"2026-05-18T02:13:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+SCuIQXA2UFXHqjdGC1VHP82fq9806E4pytQ0JrUiln7d9sxONwcgQIK5fld1xPJHuBRhFDLYv3GXzzWihDLDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:55:10.521041Z"},"content_sha256":"8ff4821c29586be45e182c1d406321aafa2ba29d6de8801389f9d955b3f83422","schema_version":"1.0","event_id":"sha256:8ff4821c29586be45e182c1d406321aafa2ba29d6de8801389f9d955b3f83422"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KQBRDQ74YTPOBXFCXS4BVIGAJC/bundle.json","state_url":"https://pith.science/pith/KQBRDQ74YTPOBXFCXS4BVIGAJC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KQBRDQ74YTPOBXFCXS4BVIGAJC/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":"2026-05-27T10:55:10Z","links":{"resolver":"https://pith.science/pith/KQBRDQ74YTPOBXFCXS4BVIGAJC","bundle":"https://pith.science/pith/KQBRDQ74YTPOBXFCXS4BVIGAJC/bundle.json","state":"https://pith.science/pith/KQBRDQ74YTPOBXFCXS4BVIGAJC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KQBRDQ74YTPOBXFCXS4BVIGAJC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:KQBRDQ74YTPOBXFCXS4BVIGAJC","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":"50e7f781e7b67fa3a69e20a07532da3185cf4bd4c63d6925873fda757f6b62ba","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-24T03:55:14Z","title_canon_sha256":"3b575745b34cb4f428d0965d54e850c3335da4f5c91a56a06f596a9f689ed88c"},"schema_version":"1.0","source":{"id":"0904.3793","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.3793","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"arxiv_version","alias_value":"0904.3793v1","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.3793","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"pith_short_12","alias_value":"KQBRDQ74YTPO","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KQBRDQ74YTPOBXFC","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KQBRDQ74","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:8ff4821c29586be45e182c1d406321aafa2ba29d6de8801389f9d955b3f83422","target":"graph","created_at":"2026-05-18T02:13:57Z","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 detection of the [CII]157.74um fine-structure line in the lensed galaxy BRI 0952-0115 at z=4.43, using the APEX telescope. This is the first detection of the [CII] line in a source with L_FIR < 10^13 L_sun at high redshift. The line is very strong compared to previous [CII] detections at high-z (a factor of 5-8 higher in flux), partly due to the lensing amplification. The L_[CII]/L_FIR ratio is 10^-2.9, which is higher than observed in local galaxies with similar infrared luminosities. Together with previous observations of [CII] at high redshift, our result suggests that the [CI","authors_text":"C. De Breuck, M. Meneghetti, M. Walmsley, P. Caselli, R. Maiolino, T. Nagao","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-24T03:55:14Z","title":"Strong [CII] emission at high redshift"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.3793","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":"sha256:36e5a267552e3dd9974857152888999a0966ea5be52b6e3c421b516142fa16b9","target":"record","created_at":"2026-05-18T02:13:57Z","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":"50e7f781e7b67fa3a69e20a07532da3185cf4bd4c63d6925873fda757f6b62ba","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-24T03:55:14Z","title_canon_sha256":"3b575745b34cb4f428d0965d54e850c3335da4f5c91a56a06f596a9f689ed88c"},"schema_version":"1.0","source":{"id":"0904.3793","kind":"arxiv","version":1}},"canonical_sha256":"540311c3fcc4dee0dca2bcb81aa0c048bcb9f749162b164877b4e65e321a528d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"540311c3fcc4dee0dca2bcb81aa0c048bcb9f749162b164877b4e65e321a528d","first_computed_at":"2026-05-18T02:13:57.635709Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:57.635709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u2v34GLsVeSFiib4QK416LYgW0cQkUMpvB/rlGhY+/MyKd0jVdN6KaTM750fJjNi8Ac47zOUxlm8nny8V6LGBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:57.636367Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.3793","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:36e5a267552e3dd9974857152888999a0966ea5be52b6e3c421b516142fa16b9","sha256:8ff4821c29586be45e182c1d406321aafa2ba29d6de8801389f9d955b3f83422"],"state_sha256":"fba448fcad166ebb9e80620b6a005880a6227eab9f7a6b93a098d155076fdd06"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VRYbxtCC2ZObJOQCYC8mBrd0fqQv3LMSxy4I6IOLXIKFUsiLPbKobaQXGntVwZj+ypib/7EATxGPUfzuiqyqBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T10:55:10.524999Z","bundle_sha256":"81fe9ca01e24c6dc581b07af6e8eef38e9b5ed0a63f935411dacbd660af9463f"}}