{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:EFZMGZOUOHADVCTKU3RBNR24IC","short_pith_number":"pith:EFZMGZOU","canonical_record":{"source":{"id":"2105.09773","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-05-20T14:20:58Z","cross_cats_sorted":[],"title_canon_sha256":"3f578392317d8b7e3ea04517e842044a9608959e28337197fb58b027732039c3","abstract_canon_sha256":"0fd9375ca927278550a1f6304e9cf969491aeb9165a950360a296f83b3bf00d4"},"schema_version":"1.0"},"canonical_sha256":"2172c365d471c03a8a6aa6e216c75c409d2ee76014d33f6a5ed930978d083ea8","source":{"kind":"arxiv","id":"2105.09773","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.09773","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"arxiv_version","alias_value":"2105.09773v1","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.09773","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"pith_short_12","alias_value":"EFZMGZOUOHAD","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"pith_short_16","alias_value":"EFZMGZOUOHADVCTK","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"pith_short_8","alias_value":"EFZMGZOU","created_at":"2026-07-05T03:01:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:EFZMGZOUOHADVCTKU3RBNR24IC","target":"record","payload":{"canonical_record":{"source":{"id":"2105.09773","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-05-20T14:20:58Z","cross_cats_sorted":[],"title_canon_sha256":"3f578392317d8b7e3ea04517e842044a9608959e28337197fb58b027732039c3","abstract_canon_sha256":"0fd9375ca927278550a1f6304e9cf969491aeb9165a950360a296f83b3bf00d4"},"schema_version":"1.0"},"canonical_sha256":"2172c365d471c03a8a6aa6e216c75c409d2ee76014d33f6a5ed930978d083ea8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:01:18.407193Z","signature_b64":"TO4M6kCUsNYFtjfTce0W5DY2WHqAkOZy0QpJuPPnAoaYhovAYqyDzSa4mUVF5DeilSU/SeenohKerZj7eH+8Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2172c365d471c03a8a6aa6e216c75c409d2ee76014d33f6a5ed930978d083ea8","last_reissued_at":"2026-07-05T03:01:18.406775Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:01:18.406775Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.09773","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":"2026-07-05T03:01:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZPP1oBOcvcxA8ShwGvXJMwE40orTH21izN4Nwvh1q243qkzYmGLUIFyem9vH8FJQUV6Fj+a0lN5Oug5SPztDCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T01:06:44.700536Z"},"content_sha256":"f8bb1fd51c813407f2e22ca4ab4eb36d059abde946e82588a77c4738386b39ed","schema_version":"1.0","event_id":"sha256:f8bb1fd51c813407f2e22ca4ab4eb36d059abde946e82588a77c4738386b39ed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:EFZMGZOUOHADVCTKU3RBNR24IC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraints on the nearby exoplanet $\\epsilon$ Ind Ab from deep near/mid-infrared imaging limits","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Anna Boehle, Anne-Lise Maire, Carl-Henrik Dahlqvist, Dominique Petit dit de la Roche, Eric Pantin, Fabo Feng, Gayathri Viswanath, Hugh R.A. Jones, Julien Girard, Markus Janson, Markus Kasper, Matthias Samland, Michael Meyer, Michael Sterzik, Olivier Absil, Prashant Pathak, Ralf Siebenmorgen, Sascha P. Quanz, Wolfgang Brandner","submitted_at":"2021-05-20T14:20:58Z","abstract_excerpt":"The past decade has seen increasing efforts in detecting and characterising exoplanets by high contrast imaging in the near/mid-infrared, which is the optimal wavelength domain for studying old, cold planets. In this work, we present deep AO imaging observations of the nearby Sun-like star $\\epsilon$ Ind A with NaCo ($L^{\\prime}$) and NEAR (10-12.5 microns) instruments at VLT, in an attempt to directly detect its planetary companion whose presence has been indicated from radial velocity (RV) and astrometric trends. We derive brightness limits from the non-detection of the companion with both i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.09773","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2105.09773/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:01:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MhoXWCXgrTOuzozJLxqvnOyEyktxFIGhba1DVbaxh6D/stAwfhRm+tSWF0WDP9A9rRF7rMlXBVClRfKVu000Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T01:06:44.701075Z"},"content_sha256":"443b6f8f1e1b03efa2aa1cd3c8d24fbc159bb26d5799ffdc7a0ee79824159122","schema_version":"1.0","event_id":"sha256:443b6f8f1e1b03efa2aa1cd3c8d24fbc159bb26d5799ffdc7a0ee79824159122"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EFZMGZOUOHADVCTKU3RBNR24IC/bundle.json","state_url":"https://pith.science/pith/EFZMGZOUOHADVCTKU3RBNR24IC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EFZMGZOUOHADVCTKU3RBNR24IC/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":"2026-08-05T01:06:44Z","links":{"resolver":"https://pith.science/pith/EFZMGZOUOHADVCTKU3RBNR24IC","bundle":"https://pith.science/pith/EFZMGZOUOHADVCTKU3RBNR24IC/bundle.json","state":"https://pith.science/pith/EFZMGZOUOHADVCTKU3RBNR24IC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EFZMGZOUOHADVCTKU3RBNR24IC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:EFZMGZOUOHADVCTKU3RBNR24IC","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":"0fd9375ca927278550a1f6304e9cf969491aeb9165a950360a296f83b3bf00d4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-05-20T14:20:58Z","title_canon_sha256":"3f578392317d8b7e3ea04517e842044a9608959e28337197fb58b027732039c3"},"schema_version":"1.0","source":{"id":"2105.09773","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.09773","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"arxiv_version","alias_value":"2105.09773v1","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.09773","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"pith_short_12","alias_value":"EFZMGZOUOHAD","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"pith_short_16","alias_value":"EFZMGZOUOHADVCTK","created_at":"2026-07-05T03:01:18Z"},{"alias_kind":"pith_short_8","alias_value":"EFZMGZOU","created_at":"2026-07-05T03:01:18Z"}],"graph_snapshots":[{"event_id":"sha256:443b6f8f1e1b03efa2aa1cd3c8d24fbc159bb26d5799ffdc7a0ee79824159122","target":"graph","created_at":"2026-07-05T03:01:18Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2105.09773/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The past decade has seen increasing efforts in detecting and characterising exoplanets by high contrast imaging in the near/mid-infrared, which is the optimal wavelength domain for studying old, cold planets. In this work, we present deep AO imaging observations of the nearby Sun-like star $\\epsilon$ Ind A with NaCo ($L^{\\prime}$) and NEAR (10-12.5 microns) instruments at VLT, in an attempt to directly detect its planetary companion whose presence has been indicated from radial velocity (RV) and astrometric trends. We derive brightness limits from the non-detection of the companion with both i","authors_text":"Anna Boehle, Anne-Lise Maire, Carl-Henrik Dahlqvist, Dominique Petit dit de la Roche, Eric Pantin, Fabo Feng, Gayathri Viswanath, Hugh R.A. Jones, Julien Girard, Markus Janson, Markus Kasper, Matthias Samland, Michael Meyer, Michael Sterzik, Olivier Absil, Prashant Pathak, Ralf Siebenmorgen, Sascha P. Quanz, Wolfgang Brandner","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-05-20T14:20:58Z","title":"Constraints on the nearby exoplanet $\\epsilon$ Ind Ab from deep near/mid-infrared imaging limits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.09773","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:f8bb1fd51c813407f2e22ca4ab4eb36d059abde946e82588a77c4738386b39ed","target":"record","created_at":"2026-07-05T03:01:18Z","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":"0fd9375ca927278550a1f6304e9cf969491aeb9165a950360a296f83b3bf00d4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-05-20T14:20:58Z","title_canon_sha256":"3f578392317d8b7e3ea04517e842044a9608959e28337197fb58b027732039c3"},"schema_version":"1.0","source":{"id":"2105.09773","kind":"arxiv","version":1}},"canonical_sha256":"2172c365d471c03a8a6aa6e216c75c409d2ee76014d33f6a5ed930978d083ea8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2172c365d471c03a8a6aa6e216c75c409d2ee76014d33f6a5ed930978d083ea8","first_computed_at":"2026-07-05T03:01:18.406775Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:01:18.406775Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TO4M6kCUsNYFtjfTce0W5DY2WHqAkOZy0QpJuPPnAoaYhovAYqyDzSa4mUVF5DeilSU/SeenohKerZj7eH+8Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:01:18.407193Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.09773","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f8bb1fd51c813407f2e22ca4ab4eb36d059abde946e82588a77c4738386b39ed","sha256:443b6f8f1e1b03efa2aa1cd3c8d24fbc159bb26d5799ffdc7a0ee79824159122"],"state_sha256":"b9a280c47406408d925662ed125d50f5a79f31c290b2eba3e9b5a1ee2ce61007"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a8RTyPX+X1irax2P9J76C4AmneUGd8bues/CIb5egf/4x8pq4DtIcIWEthvUvpzbfoqHHguyk5bzgptWsfEkAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T01:06:44.704465Z","bundle_sha256":"6edde3c32eebd454d8fb425f730e6e26455ba8ef83f15d5989f0488eb0365cfc"}}