{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:QBI7E6GC7C2SSIHMA6XZJWVWNQ","short_pith_number":"pith:QBI7E6GC","canonical_record":{"source":{"id":"1306.0953","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-06-05T01:22:37Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"db0be0712b320f9dec52edd60e7b4767b68de77ae4516f8a6c0eab7a40bf32b8","abstract_canon_sha256":"0281d3190992d354600679efd3b49185377ffdbe4f1edc0de7b569ddc8b2c726"},"schema_version":"1.0"},"canonical_sha256":"8051f278c2f8b52920ec07af94dab66c268fe4409e74902b2d1d83f680fd1c5d","source":{"kind":"arxiv","id":"1306.0953","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0953","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0953v1","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0953","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"pith_short_12","alias_value":"QBI7E6GC7C2S","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QBI7E6GC7C2SSIHM","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QBI7E6GC","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:QBI7E6GC7C2SSIHMA6XZJWVWNQ","target":"record","payload":{"canonical_record":{"source":{"id":"1306.0953","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-06-05T01:22:37Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"db0be0712b320f9dec52edd60e7b4767b68de77ae4516f8a6c0eab7a40bf32b8","abstract_canon_sha256":"0281d3190992d354600679efd3b49185377ffdbe4f1edc0de7b569ddc8b2c726"},"schema_version":"1.0"},"canonical_sha256":"8051f278c2f8b52920ec07af94dab66c268fe4409e74902b2d1d83f680fd1c5d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:32.815100Z","signature_b64":"T0MVT0TXA/4tQ8AGWopePtVduqWP83TBHUTLAdhKTAQGV0KLrubqbHvu5Kz61HE6L67PC0dNSis0NshsMM99CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8051f278c2f8b52920ec07af94dab66c268fe4409e74902b2d1d83f680fd1c5d","last_reissued_at":"2026-05-18T01:49:32.814609Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:32.814609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.0953","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":"2026-05-18T01:49:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"baV9qK28+yk8p8FwFRoh7Dh4qpFLpCQJC5DFGkcaxzmXk78HmrRhcjQccrL7wCRhLuEUmnPZCXMoP5eQZSY9DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:27:49.619136Z"},"content_sha256":"c30a130235bae3c92133b2244154de5de6d614955e823ea4efe9c0549b94ef26","schema_version":"1.0","event_id":"sha256:c30a130235bae3c92133b2244154de5de6d614955e823ea4efe9c0549b94ef26"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:QBI7E6GC7C2SSIHMA6XZJWVWNQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of Widespread Hot Ammonia in the Galactic Center","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Elisabeth A.C. Mills, Mark R. Morris","submitted_at":"2013-06-05T01:22:37Z","abstract_excerpt":"We present the detection of metastable inversion lines of ammonia from energy levels high above the ground state. We detect these lines in both emission and absorption toward fifteen of seventeen positions in the central 300 parsecs of the Galaxy. In total, we observe seven metastable transitions of ammonia: (8,8), (9,9), (10,10), (11,11), (12,12), (13,13) and (15,15), with energies (in Kelvins) ranging from 680 to 2200 K. We also map emission from ammonia (8,8) and (9,9) in two clouds in the Sgr A complex (M-0.02-0.07 and M-0.13-0.08), and we find that the line emission is concentrated toward"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0953","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":"2026-05-18T01:49:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SSFxSmeosioktAM44oAYQQyL70zmYzUGqIlmmsK09eLPICsZ1Vyd8UqgpfLjdhbd9CdSytEyrX26lE0J7CgWAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:27:49.619563Z"},"content_sha256":"b1f614891f1406f280a4f472120bfba0de8afb1671ba7533c66ddaf334950776","schema_version":"1.0","event_id":"sha256:b1f614891f1406f280a4f472120bfba0de8afb1671ba7533c66ddaf334950776"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QBI7E6GC7C2SSIHMA6XZJWVWNQ/bundle.json","state_url":"https://pith.science/pith/QBI7E6GC7C2SSIHMA6XZJWVWNQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QBI7E6GC7C2SSIHMA6XZJWVWNQ/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":"2026-05-30T12:27:49Z","links":{"resolver":"https://pith.science/pith/QBI7E6GC7C2SSIHMA6XZJWVWNQ","bundle":"https://pith.science/pith/QBI7E6GC7C2SSIHMA6XZJWVWNQ/bundle.json","state":"https://pith.science/pith/QBI7E6GC7C2SSIHMA6XZJWVWNQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QBI7E6GC7C2SSIHMA6XZJWVWNQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QBI7E6GC7C2SSIHMA6XZJWVWNQ","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":"0281d3190992d354600679efd3b49185377ffdbe4f1edc0de7b569ddc8b2c726","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-06-05T01:22:37Z","title_canon_sha256":"db0be0712b320f9dec52edd60e7b4767b68de77ae4516f8a6c0eab7a40bf32b8"},"schema_version":"1.0","source":{"id":"1306.0953","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0953","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0953v1","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0953","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"pith_short_12","alias_value":"QBI7E6GC7C2S","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QBI7E6GC7C2SSIHM","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QBI7E6GC","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:b1f614891f1406f280a4f472120bfba0de8afb1671ba7533c66ddaf334950776","target":"graph","created_at":"2026-05-18T01:49:32Z","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 present the detection of metastable inversion lines of ammonia from energy levels high above the ground state. We detect these lines in both emission and absorption toward fifteen of seventeen positions in the central 300 parsecs of the Galaxy. In total, we observe seven metastable transitions of ammonia: (8,8), (9,9), (10,10), (11,11), (12,12), (13,13) and (15,15), with energies (in Kelvins) ranging from 680 to 2200 K. We also map emission from ammonia (8,8) and (9,9) in two clouds in the Sgr A complex (M-0.02-0.07 and M-0.13-0.08), and we find that the line emission is concentrated toward","authors_text":"Elisabeth A.C. Mills, Mark R. Morris","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-06-05T01:22:37Z","title":"Detection of Widespread Hot Ammonia in the Galactic Center"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0953","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:c30a130235bae3c92133b2244154de5de6d614955e823ea4efe9c0549b94ef26","target":"record","created_at":"2026-05-18T01:49:32Z","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":"0281d3190992d354600679efd3b49185377ffdbe4f1edc0de7b569ddc8b2c726","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-06-05T01:22:37Z","title_canon_sha256":"db0be0712b320f9dec52edd60e7b4767b68de77ae4516f8a6c0eab7a40bf32b8"},"schema_version":"1.0","source":{"id":"1306.0953","kind":"arxiv","version":1}},"canonical_sha256":"8051f278c2f8b52920ec07af94dab66c268fe4409e74902b2d1d83f680fd1c5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8051f278c2f8b52920ec07af94dab66c268fe4409e74902b2d1d83f680fd1c5d","first_computed_at":"2026-05-18T01:49:32.814609Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:32.814609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T0MVT0TXA/4tQ8AGWopePtVduqWP83TBHUTLAdhKTAQGV0KLrubqbHvu5Kz61HE6L67PC0dNSis0NshsMM99CA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:32.815100Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.0953","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c30a130235bae3c92133b2244154de5de6d614955e823ea4efe9c0549b94ef26","sha256:b1f614891f1406f280a4f472120bfba0de8afb1671ba7533c66ddaf334950776"],"state_sha256":"b7789ece56d7300c9192a19eb9ff89b8742b84633d914abc0297568976acfe50"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"82kXXPWdSMPnEcfPR9KrQMX7lm4J6t1nxgELt/L5IfffRikFAiicCw3h4Ifs+YzKI7ZT4q3klDQcwV5rb8DmDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T12:27:49.621639Z","bundle_sha256":"8a52e6d370ade97e2e7e686b4046f17c4f2d4de054477f25fb2b57c8ed5a66d8"}}