{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:FSTK4M7MAWHI4PUSZRK3IAF64P","short_pith_number":"pith:FSTK4M7M","canonical_record":{"source":{"id":"1806.07395","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-19T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"c11ee27c883986687b34fffa02cbb8b8132e139822feff88f7b807b2969b2d6e","abstract_canon_sha256":"43955338420ecd4cb7906b1b8d44e4d7571c9db427b6f4ac5964a14b863cb5a6"},"schema_version":"1.0"},"canonical_sha256":"2ca6ae33ec058e8e3e92cc55b400bee3ca4723a6154ded950127d7a474de0a8c","source":{"kind":"arxiv","id":"1806.07395","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.07395","created_at":"2026-05-18T00:08:40Z"},{"alias_kind":"arxiv_version","alias_value":"1806.07395v1","created_at":"2026-05-18T00:08:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.07395","created_at":"2026-05-18T00:08:40Z"},{"alias_kind":"pith_short_12","alias_value":"FSTK4M7MAWHI","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FSTK4M7MAWHI4PUS","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FSTK4M7M","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:FSTK4M7MAWHI4PUSZRK3IAF64P","target":"record","payload":{"canonical_record":{"source":{"id":"1806.07395","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-19T18:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"c11ee27c883986687b34fffa02cbb8b8132e139822feff88f7b807b2969b2d6e","abstract_canon_sha256":"43955338420ecd4cb7906b1b8d44e4d7571c9db427b6f4ac5964a14b863cb5a6"},"schema_version":"1.0"},"canonical_sha256":"2ca6ae33ec058e8e3e92cc55b400bee3ca4723a6154ded950127d7a474de0a8c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:40.794922Z","signature_b64":"VEOcX1nnbkry0PJYeGk399fzAraAHT0TdxJOm097h/bSnRJ6q2LlMzpGVrn/sevksMjKW1s87KUe5gimiEa6Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ca6ae33ec058e8e3e92cc55b400bee3ca4723a6154ded950127d7a474de0a8c","last_reissued_at":"2026-05-18T00:08:40.794225Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:40.794225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.07395","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":"2026-05-18T00:08:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d+VFqEZKy31MlS0XkWDIJjE5VTGyNMKq+mARIUTXtgLsyOefS62Myz/8Sfe3A5tAMjtDSrXEO9ByEBB0F1h9BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T09:22:08.792275Z"},"content_sha256":"6d1fefc886fc02faef6867a826a7a4ed080bd58601d654bc1f48ba01a1687b73","schema_version":"1.0","event_id":"sha256:6d1fefc886fc02faef6867a826a7a4ed080bd58601d654bc1f48ba01a1687b73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:FSTK4M7MAWHI4PUSZRK3IAF64P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Detection of Sgr A* in the far infrared","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alejandra Jimenez-Rosales, Felix Widmann, Feng Gao, Frank Eisenhauer, Gabriele Ponti, Idel Waisberg, Jason Dexter, Javier Graci\\'a-Carpio, Maryam Habibi, Michi Baub\\\"ock, Oliver Pfuhl, Philipp M. Plewa, Reinhard Genzel, Sebastiano D. von Fellenberg, Stefan Gillessen, Thomas Ott, Tobias K. Fritz","submitted_at":"2018-06-19T18:00:01Z","abstract_excerpt":"We report the first detection of the Galactic Centre massive black hole, Sgr~A*, in the far infrared. Our measurements were obtained with PACS on board the \\emph{Herschel} satellite at $100~\\mathrm{\\mu m}$ and $160~\\mathrm{\\mu m}$. While the warm dust in the Galactic Centre is too bright to allow for a direct detection of Sgr~A*, we measure a significant and simultaneous variation of its flux of $\\Delta F_{\\nu\\widehat{=}160 ~\\mathrm{\\mu m}} = (0.27\\pm0.06)~\\mathrm{Jy}$ and $\\Delta F_{\\nu\\widehat{=}100 ~\\mathrm{\\mu m}}= (0.16\\pm0.10)~\\mathrm{Jy}$ during one observation. The significance level o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.07395","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":"2026-05-18T00:08:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8qfPONoIlwZkavREEYQvZk/54A8ErnSn4xDQFeRhyFVEoJvQAuZkQdqAdz3AzYFs5dWRc7jrsVYs0/7usDINBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T09:22:08.792992Z"},"content_sha256":"e64b99b32dec965053c78fe90a12e27bdbafd34ef5883c533dfe4eea89c6379c","schema_version":"1.0","event_id":"sha256:e64b99b32dec965053c78fe90a12e27bdbafd34ef5883c533dfe4eea89c6379c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FSTK4M7MAWHI4PUSZRK3IAF64P/bundle.json","state_url":"https://pith.science/pith/FSTK4M7MAWHI4PUSZRK3IAF64P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FSTK4M7MAWHI4PUSZRK3IAF64P/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":"2026-06-07T09:22:08Z","links":{"resolver":"https://pith.science/pith/FSTK4M7MAWHI4PUSZRK3IAF64P","bundle":"https://pith.science/pith/FSTK4M7MAWHI4PUSZRK3IAF64P/bundle.json","state":"https://pith.science/pith/FSTK4M7MAWHI4PUSZRK3IAF64P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FSTK4M7MAWHI4PUSZRK3IAF64P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FSTK4M7MAWHI4PUSZRK3IAF64P","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":"43955338420ecd4cb7906b1b8d44e4d7571c9db427b6f4ac5964a14b863cb5a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-19T18:00:01Z","title_canon_sha256":"c11ee27c883986687b34fffa02cbb8b8132e139822feff88f7b807b2969b2d6e"},"schema_version":"1.0","source":{"id":"1806.07395","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.07395","created_at":"2026-05-18T00:08:40Z"},{"alias_kind":"arxiv_version","alias_value":"1806.07395v1","created_at":"2026-05-18T00:08:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.07395","created_at":"2026-05-18T00:08:40Z"},{"alias_kind":"pith_short_12","alias_value":"FSTK4M7MAWHI","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"FSTK4M7MAWHI4PUS","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"FSTK4M7M","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:e64b99b32dec965053c78fe90a12e27bdbafd34ef5883c533dfe4eea89c6379c","target":"graph","created_at":"2026-05-18T00:08:40Z","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 first detection of the Galactic Centre massive black hole, Sgr~A*, in the far infrared. Our measurements were obtained with PACS on board the \\emph{Herschel} satellite at $100~\\mathrm{\\mu m}$ and $160~\\mathrm{\\mu m}$. While the warm dust in the Galactic Centre is too bright to allow for a direct detection of Sgr~A*, we measure a significant and simultaneous variation of its flux of $\\Delta F_{\\nu\\widehat{=}160 ~\\mathrm{\\mu m}} = (0.27\\pm0.06)~\\mathrm{Jy}$ and $\\Delta F_{\\nu\\widehat{=}100 ~\\mathrm{\\mu m}}= (0.16\\pm0.10)~\\mathrm{Jy}$ during one observation. The significance level o","authors_text":"Alejandra Jimenez-Rosales, Felix Widmann, Feng Gao, Frank Eisenhauer, Gabriele Ponti, Idel Waisberg, Jason Dexter, Javier Graci\\'a-Carpio, Maryam Habibi, Michi Baub\\\"ock, Oliver Pfuhl, Philipp M. Plewa, Reinhard Genzel, Sebastiano D. von Fellenberg, Stefan Gillessen, Thomas Ott, Tobias K. Fritz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-19T18:00:01Z","title":"A Detection of Sgr A* in the far infrared"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.07395","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":"sha256:6d1fefc886fc02faef6867a826a7a4ed080bd58601d654bc1f48ba01a1687b73","target":"record","created_at":"2026-05-18T00:08:40Z","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":"43955338420ecd4cb7906b1b8d44e4d7571c9db427b6f4ac5964a14b863cb5a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-06-19T18:00:01Z","title_canon_sha256":"c11ee27c883986687b34fffa02cbb8b8132e139822feff88f7b807b2969b2d6e"},"schema_version":"1.0","source":{"id":"1806.07395","kind":"arxiv","version":1}},"canonical_sha256":"2ca6ae33ec058e8e3e92cc55b400bee3ca4723a6154ded950127d7a474de0a8c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ca6ae33ec058e8e3e92cc55b400bee3ca4723a6154ded950127d7a474de0a8c","first_computed_at":"2026-05-18T00:08:40.794225Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:40.794225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VEOcX1nnbkry0PJYeGk399fzAraAHT0TdxJOm097h/bSnRJ6q2LlMzpGVrn/sevksMjKW1s87KUe5gimiEa6Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:40.794922Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.07395","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6d1fefc886fc02faef6867a826a7a4ed080bd58601d654bc1f48ba01a1687b73","sha256:e64b99b32dec965053c78fe90a12e27bdbafd34ef5883c533dfe4eea89c6379c"],"state_sha256":"51aa2af50c3688513e7096206c47f5ebe9facf46bcae35f9f3443e10bbf8e929"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aZceoZuruOZkLhxX6sbYvraafc1Tr2rNmnKwSzfavYY3OQKJFRbF483pRz3H1FgOYynFsXF0qHG3dw5pO0wyDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T09:22:08.796589Z","bundle_sha256":"b51c811b39a1e8fc8fd8d0df6f8286a8cc7d8a63b66391d58617168d1d870022"}}