{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:XOV6X7VCX5AHXJFCLBTU3L2HAE","short_pith_number":"pith:XOV6X7VC","canonical_record":{"source":{"id":"astro-ph/0112174","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-12-07T11:41:51Z","cross_cats_sorted":[],"title_canon_sha256":"a95a91e8c7e390c08fe727b0c2ff091863b6996e42711150629f223cf210f9c2","abstract_canon_sha256":"a4c8382271341a2bb3a4b470023b8eed4b47baf74960f727f146c0c47ad1bdfc"},"schema_version":"1.0"},"canonical_sha256":"bbabebfea2bf407ba4a258674daf47012f96c4e0967ad8be9fee21e98270b786","source":{"kind":"arxiv","id":"astro-ph/0112174","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0112174","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0112174v1","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0112174","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"pith_short_12","alias_value":"XOV6X7VCX5AH","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"pith_short_16","alias_value":"XOV6X7VCX5AHXJFC","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"pith_short_8","alias_value":"XOV6X7VC","created_at":"2026-07-04T16:24:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:XOV6X7VCX5AHXJFCLBTU3L2HAE","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0112174","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-12-07T11:41:51Z","cross_cats_sorted":[],"title_canon_sha256":"a95a91e8c7e390c08fe727b0c2ff091863b6996e42711150629f223cf210f9c2","abstract_canon_sha256":"a4c8382271341a2bb3a4b470023b8eed4b47baf74960f727f146c0c47ad1bdfc"},"schema_version":"1.0"},"canonical_sha256":"bbabebfea2bf407ba4a258674daf47012f96c4e0967ad8be9fee21e98270b786","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:24:43.713500Z","signature_b64":"qiA9bykbk3FJGJePuXMTSxy3u6mk21e/dJw80dgDOmg3edm8gfbkdDxdIdKmPTqD3tDbdaBnKfThFEnpqK/WBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bbabebfea2bf407ba4a258674daf47012f96c4e0967ad8be9fee21e98270b786","last_reissued_at":"2026-07-04T16:24:43.713116Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:24:43.713116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0112174","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":"2026-07-04T16:24:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DRr3kt/vrb+0R4IzvNOCsjU+p3gkzcRArsPU7QFDJUhRb3C8KpNzsC3AdXEPxPaGGxfasdLYwZjfXNICoJ5fAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T16:32:33.670157Z"},"content_sha256":"38d5aa48664f49e53ad7d6fcccd228490b6ea410c5b6b4775578d29ac31cd56b","schema_version":"1.0","event_id":"sha256:38d5aa48664f49e53ad7d6fcccd228490b6ea410c5b6b4775578d29ac31cd56b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:XOV6X7VCX5AHXJFCLBTU3L2HAE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Formation Pumping of Molecular Hydrogen in the Messier 17 Photodissociation Region","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Londish, M.G. Burton, P.W.J.L. Brand","submitted_at":"2001-12-07T11:41:51Z","abstract_excerpt":"We have imaged the emission from the near-infrared v=1-0 S(1), 1-0 S(7), 2-1 S(1) and 6-4 O(3) lines of molecular hydrogen in the N- and SW-Bars of M17, together with the hydrogen Br-gamma and Br-10 lines. This includes the first emission line image ever to be obtained of a line from the highly excited v=6 level of H2. In both Bars, the H2 emission is generally distributed in clumps along filamentary features. The 1-0 S(1) and 2-1 S(1) images have similar morphologies. Together with their relative line ratios, this supports a fluorescent origin for their emission, within a photodissociation re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0112174","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/astro-ph/0112174/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":"2026-07-04T16:24:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1AEQbZafBEFq8vJ1LWXAfvF1CFRUKpp1y0KtNM/dMyUSqAXAFBaJa8N5fVNWk9GA/iUBhpk2wJhHMnbd2SDnCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T16:32:33.670654Z"},"content_sha256":"7052cfb94a71cc4401d240d916d78f41b3ce4c53ddaa93f409d72176ba2e64c0","schema_version":"1.0","event_id":"sha256:7052cfb94a71cc4401d240d916d78f41b3ce4c53ddaa93f409d72176ba2e64c0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XOV6X7VCX5AHXJFCLBTU3L2HAE/bundle.json","state_url":"https://pith.science/pith/XOV6X7VCX5AHXJFCLBTU3L2HAE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XOV6X7VCX5AHXJFCLBTU3L2HAE/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":"2026-08-06T16:32:33Z","links":{"resolver":"https://pith.science/pith/XOV6X7VCX5AHXJFCLBTU3L2HAE","bundle":"https://pith.science/pith/XOV6X7VCX5AHXJFCLBTU3L2HAE/bundle.json","state":"https://pith.science/pith/XOV6X7VCX5AHXJFCLBTU3L2HAE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XOV6X7VCX5AHXJFCLBTU3L2HAE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:XOV6X7VCX5AHXJFCLBTU3L2HAE","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":"a4c8382271341a2bb3a4b470023b8eed4b47baf74960f727f146c0c47ad1bdfc","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-12-07T11:41:51Z","title_canon_sha256":"a95a91e8c7e390c08fe727b0c2ff091863b6996e42711150629f223cf210f9c2"},"schema_version":"1.0","source":{"id":"astro-ph/0112174","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0112174","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0112174v1","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0112174","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"pith_short_12","alias_value":"XOV6X7VCX5AH","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"pith_short_16","alias_value":"XOV6X7VCX5AHXJFC","created_at":"2026-07-04T16:24:43Z"},{"alias_kind":"pith_short_8","alias_value":"XOV6X7VC","created_at":"2026-07-04T16:24:43Z"}],"graph_snapshots":[{"event_id":"sha256:7052cfb94a71cc4401d240d916d78f41b3ce4c53ddaa93f409d72176ba2e64c0","target":"graph","created_at":"2026-07-04T16:24:43Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0112174/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have imaged the emission from the near-infrared v=1-0 S(1), 1-0 S(7), 2-1 S(1) and 6-4 O(3) lines of molecular hydrogen in the N- and SW-Bars of M17, together with the hydrogen Br-gamma and Br-10 lines. This includes the first emission line image ever to be obtained of a line from the highly excited v=6 level of H2. In both Bars, the H2 emission is generally distributed in clumps along filamentary features. The 1-0 S(1) and 2-1 S(1) images have similar morphologies. Together with their relative line ratios, this supports a fluorescent origin for their emission, within a photodissociation re","authors_text":"D. Londish, M.G. Burton, P.W.J.L. Brand","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-12-07T11:41:51Z","title":"Formation Pumping of Molecular Hydrogen in the Messier 17 Photodissociation Region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0112174","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":"sha256:38d5aa48664f49e53ad7d6fcccd228490b6ea410c5b6b4775578d29ac31cd56b","target":"record","created_at":"2026-07-04T16:24:43Z","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":"a4c8382271341a2bb3a4b470023b8eed4b47baf74960f727f146c0c47ad1bdfc","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-12-07T11:41:51Z","title_canon_sha256":"a95a91e8c7e390c08fe727b0c2ff091863b6996e42711150629f223cf210f9c2"},"schema_version":"1.0","source":{"id":"astro-ph/0112174","kind":"arxiv","version":1}},"canonical_sha256":"bbabebfea2bf407ba4a258674daf47012f96c4e0967ad8be9fee21e98270b786","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bbabebfea2bf407ba4a258674daf47012f96c4e0967ad8be9fee21e98270b786","first_computed_at":"2026-07-04T16:24:43.713116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:24:43.713116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qiA9bykbk3FJGJePuXMTSxy3u6mk21e/dJw80dgDOmg3edm8gfbkdDxdIdKmPTqD3tDbdaBnKfThFEnpqK/WBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:24:43.713500Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0112174","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:38d5aa48664f49e53ad7d6fcccd228490b6ea410c5b6b4775578d29ac31cd56b","sha256:7052cfb94a71cc4401d240d916d78f41b3ce4c53ddaa93f409d72176ba2e64c0"],"state_sha256":"f4e104848c3ac2aa8003dc75d9349b67d2d4a9cba2f04bd71cee5e60dfb63cf8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5K/Ly23dGd4miczmBA5T92qlgXlj5tvCDJOuqorUOu7yfiQWHH78PuUDVF7sOYF87Zyuk41YT4TdaAnVNx9DBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T16:32:33.674733Z","bundle_sha256":"d4400f5805345d46f5cb5828b34071602f38a6cc4c0edd791200143278c706ef"}}