{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:TOZOWUSEI5VSGSJS7LCOUPTP2O","short_pith_number":"pith:TOZOWUSE","canonical_record":{"source":{"id":"1108.4880","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-24T16:56:18Z","cross_cats_sorted":[],"title_canon_sha256":"c727717e40663c0593c153df6e7f456508041496ac7a473703767befec2e3305","abstract_canon_sha256":"dd1b44c5ee9f46a3b128cd9c5c535660f5c13a15b5a988406dfdc811bbb16cc2"},"schema_version":"1.0"},"canonical_sha256":"9bb2eb5244476b234932fac4ea3e6fd3ad1ad19db3d45e7336baa8e4c5a2c91e","source":{"kind":"arxiv","id":"1108.4880","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.4880","created_at":"2026-05-18T02:00:48Z"},{"alias_kind":"arxiv_version","alias_value":"1108.4880v1","created_at":"2026-05-18T02:00:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.4880","created_at":"2026-05-18T02:00:48Z"},{"alias_kind":"pith_short_12","alias_value":"TOZOWUSEI5VS","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"TOZOWUSEI5VSGSJS","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"TOZOWUSE","created_at":"2026-05-18T12:26:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:TOZOWUSEI5VSGSJS7LCOUPTP2O","target":"record","payload":{"canonical_record":{"source":{"id":"1108.4880","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-24T16:56:18Z","cross_cats_sorted":[],"title_canon_sha256":"c727717e40663c0593c153df6e7f456508041496ac7a473703767befec2e3305","abstract_canon_sha256":"dd1b44c5ee9f46a3b128cd9c5c535660f5c13a15b5a988406dfdc811bbb16cc2"},"schema_version":"1.0"},"canonical_sha256":"9bb2eb5244476b234932fac4ea3e6fd3ad1ad19db3d45e7336baa8e4c5a2c91e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:48.629411Z","signature_b64":"D15Ph+r3qaDlFakmZoPeQPHwD6Tw4xOEBd8r43+K2kBEr9Wh1MSb7xTaL6jmar8aFdFM2nw+gskhLs2TVEUeCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9bb2eb5244476b234932fac4ea3e6fd3ad1ad19db3d45e7336baa8e4c5a2c91e","last_reissued_at":"2026-05-18T02:00:48.628699Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:48.628699Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.4880","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":"2026-05-18T02:00:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z0wyXIQCN+nrsHP2M7rfu/9uDEBJHEn1apHAD2tBuqBCVG+LqWEDA2lYVfOjIEAxIBh7SWRvG8nKk5lENGkfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:59:02.113211Z"},"content_sha256":"415d3815a977575769194fbd9ddc509feed96f3e1dc95a039dba6982cb1201da","schema_version":"1.0","event_id":"sha256:415d3815a977575769194fbd9ddc509feed96f3e1dc95a039dba6982cb1201da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:TOZOWUSEI5VSGSJS7LCOUPTP2O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Chromospheric Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Beck, C. Bethge, C. Halbgewachs, D. F. Elmore, H. Peter, T. J. Kentischer","submitted_at":"2011-08-24T16:56:18Z","abstract_excerpt":"We introduce the Chromospheric Telescope (ChroTel) at the Observatorio del Teide in Izana on Tenerife as a new multi-wavelength imaging telescope for full-disk synoptic observations of the solar chromosphere. We describe the design of the instrument and summarize its performance during the first one and a half years of operation. We present a method to derive line-of-sight velocity maps of the full solar disk from filtergrams taken in and near the He I infrared line at 10830 \\AA."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.4880","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":"2026-05-18T02:00:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kSS1TjAMToJF/zsNS6JadVcYZ2e2Vapuku85M/rxq0lnP9YetehMc2yYS5k657LGWhmu9WjW3w3Pkgtit0mFDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T02:59:02.113814Z"},"content_sha256":"17d85b49788c84a492b38296170d02201f918c21926896c03e82d5490bae8b68","schema_version":"1.0","event_id":"sha256:17d85b49788c84a492b38296170d02201f918c21926896c03e82d5490bae8b68"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TOZOWUSEI5VSGSJS7LCOUPTP2O/bundle.json","state_url":"https://pith.science/pith/TOZOWUSEI5VSGSJS7LCOUPTP2O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TOZOWUSEI5VSGSJS7LCOUPTP2O/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":"2026-05-28T02:59:02Z","links":{"resolver":"https://pith.science/pith/TOZOWUSEI5VSGSJS7LCOUPTP2O","bundle":"https://pith.science/pith/TOZOWUSEI5VSGSJS7LCOUPTP2O/bundle.json","state":"https://pith.science/pith/TOZOWUSEI5VSGSJS7LCOUPTP2O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TOZOWUSEI5VSGSJS7LCOUPTP2O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:TOZOWUSEI5VSGSJS7LCOUPTP2O","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":"dd1b44c5ee9f46a3b128cd9c5c535660f5c13a15b5a988406dfdc811bbb16cc2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-24T16:56:18Z","title_canon_sha256":"c727717e40663c0593c153df6e7f456508041496ac7a473703767befec2e3305"},"schema_version":"1.0","source":{"id":"1108.4880","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.4880","created_at":"2026-05-18T02:00:48Z"},{"alias_kind":"arxiv_version","alias_value":"1108.4880v1","created_at":"2026-05-18T02:00:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.4880","created_at":"2026-05-18T02:00:48Z"},{"alias_kind":"pith_short_12","alias_value":"TOZOWUSEI5VS","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"TOZOWUSEI5VSGSJS","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"TOZOWUSE","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:17d85b49788c84a492b38296170d02201f918c21926896c03e82d5490bae8b68","target":"graph","created_at":"2026-05-18T02:00:48Z","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 introduce the Chromospheric Telescope (ChroTel) at the Observatorio del Teide in Izana on Tenerife as a new multi-wavelength imaging telescope for full-disk synoptic observations of the solar chromosphere. We describe the design of the instrument and summarize its performance during the first one and a half years of operation. We present a method to derive line-of-sight velocity maps of the full solar disk from filtergrams taken in and near the He I infrared line at 10830 \\AA.","authors_text":"C. Beck, C. Bethge, C. Halbgewachs, D. F. Elmore, H. Peter, T. J. Kentischer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-24T16:56:18Z","title":"The Chromospheric Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.4880","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":"sha256:415d3815a977575769194fbd9ddc509feed96f3e1dc95a039dba6982cb1201da","target":"record","created_at":"2026-05-18T02:00:48Z","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":"dd1b44c5ee9f46a3b128cd9c5c535660f5c13a15b5a988406dfdc811bbb16cc2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-24T16:56:18Z","title_canon_sha256":"c727717e40663c0593c153df6e7f456508041496ac7a473703767befec2e3305"},"schema_version":"1.0","source":{"id":"1108.4880","kind":"arxiv","version":1}},"canonical_sha256":"9bb2eb5244476b234932fac4ea3e6fd3ad1ad19db3d45e7336baa8e4c5a2c91e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9bb2eb5244476b234932fac4ea3e6fd3ad1ad19db3d45e7336baa8e4c5a2c91e","first_computed_at":"2026-05-18T02:00:48.628699Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:48.628699Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D15Ph+r3qaDlFakmZoPeQPHwD6Tw4xOEBd8r43+K2kBEr9Wh1MSb7xTaL6jmar8aFdFM2nw+gskhLs2TVEUeCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:48.629411Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.4880","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:415d3815a977575769194fbd9ddc509feed96f3e1dc95a039dba6982cb1201da","sha256:17d85b49788c84a492b38296170d02201f918c21926896c03e82d5490bae8b68"],"state_sha256":"67b17ba5e38219c6c3aca41f5e8dc0a8ccccaf29284bb149c994246357b884da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e7sO86pekzP+E06m3zpcp4gm1clz7jstV8K11aGf6Pm9SdUuaBsdJA9h0LhfXJNm2KG8MVR7gvFpmwXO4qykAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T02:59:02.116603Z","bundle_sha256":"7b994a81d9b6e4e4f2c7bd40d0cada8f38baa15357ed7f32c0c8718152f93531"}}