{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:74XPH4LUKLP3I27MP2Y7BGLCEO","short_pith_number":"pith:74XPH4LU","canonical_record":{"source":{"id":"1111.2533","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-10T17:42:39Z","cross_cats_sorted":[],"title_canon_sha256":"7080044b98c8d978a19577004b835f61a16d791600e4b06ba83bdb8fe60c792c","abstract_canon_sha256":"6922d22903c63a8c70eff98b63b2aedca5429041a27f4409a7371d5bb01397ac"},"schema_version":"1.0"},"canonical_sha256":"ff2ef3f17452dfb46bec7eb1f0996223a8660e4cb30e89de511e59342c655856","source":{"kind":"arxiv","id":"1111.2533","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.2533","created_at":"2026-05-18T01:59:42Z"},{"alias_kind":"arxiv_version","alias_value":"1111.2533v1","created_at":"2026-05-18T01:59:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.2533","created_at":"2026-05-18T01:59:42Z"},{"alias_kind":"pith_short_12","alias_value":"74XPH4LUKLP3","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"74XPH4LUKLP3I27M","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"74XPH4LU","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:74XPH4LUKLP3I27MP2Y7BGLCEO","target":"record","payload":{"canonical_record":{"source":{"id":"1111.2533","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-10T17:42:39Z","cross_cats_sorted":[],"title_canon_sha256":"7080044b98c8d978a19577004b835f61a16d791600e4b06ba83bdb8fe60c792c","abstract_canon_sha256":"6922d22903c63a8c70eff98b63b2aedca5429041a27f4409a7371d5bb01397ac"},"schema_version":"1.0"},"canonical_sha256":"ff2ef3f17452dfb46bec7eb1f0996223a8660e4cb30e89de511e59342c655856","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:42.507883Z","signature_b64":"/cDLWPrX4ExSeBNkuuZZd8uCj3T8gnsfioUv5TyOB7vS/+l9extoi8gcZc9IQeBn8hQcATKyz1zCXy+o80w8DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff2ef3f17452dfb46bec7eb1f0996223a8660e4cb30e89de511e59342c655856","last_reissued_at":"2026-05-18T01:59:42.507193Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:42.507193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.2533","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":"2026-05-18T01:59:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lUYPPdoFGZrfM1G02xD19t0Xv361V6OcJ4XYsQ1GAVZG/rdZedrMRG1Mr7Hb6I+mgHu54hvT6Y79KHePpBTMBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T10:21:38.445510Z"},"content_sha256":"6f5509f569a76b3edfe709ffb68f5881217ab3b0c609eab3cba467ce6e7df1bf","schema_version":"1.0","event_id":"sha256:6f5509f569a76b3edfe709ffb68f5881217ab3b0c609eab3cba467ce6e7df1bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:74XPH4LUKLP3I27MP2Y7BGLCEO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Rich Circumstellar Chemistry of SMP LMC 11","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Jan Cami, Jeronimo Bernard-Salas, Sarah E. Malek","submitted_at":"2011-11-10T17:42:39Z","abstract_excerpt":"Carbon-rich evolved stars from the asymptotic giant branch to the planetary nebula phase are characterized by a rich and complex carbon chemistry in their circumstellar envelopes. A peculiar object is the preplanetary nebula SMP LMC 11, whose Spitzer-IRS spectrum shows remarkable and diverse molecular absorption bands. To study how the molecular composition in this object compares to our current understanding of circumstellar carbon chemistry, we modeled this molecular absorption. We find high abundances for a number of molecules, perhaps most notably benzene. We also confirm the presence of p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.2533","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":"2026-05-18T01:59:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ri76faUucTMAZJwSW9b0EPT5zjE4Ccm0BMesmQNBLRtixJu7RNDtb+OH4Xw6LzrGr7jn0gR4eFWuP1Fc9rWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T10:21:38.446258Z"},"content_sha256":"69c7faf32c7d06676509ef529f347e7cdffe9387119ce93157c6d5d038cdd73c","schema_version":"1.0","event_id":"sha256:69c7faf32c7d06676509ef529f347e7cdffe9387119ce93157c6d5d038cdd73c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/74XPH4LUKLP3I27MP2Y7BGLCEO/bundle.json","state_url":"https://pith.science/pith/74XPH4LUKLP3I27MP2Y7BGLCEO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/74XPH4LUKLP3I27MP2Y7BGLCEO/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":"2026-05-25T10:21:38Z","links":{"resolver":"https://pith.science/pith/74XPH4LUKLP3I27MP2Y7BGLCEO","bundle":"https://pith.science/pith/74XPH4LUKLP3I27MP2Y7BGLCEO/bundle.json","state":"https://pith.science/pith/74XPH4LUKLP3I27MP2Y7BGLCEO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/74XPH4LUKLP3I27MP2Y7BGLCEO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:74XPH4LUKLP3I27MP2Y7BGLCEO","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":"6922d22903c63a8c70eff98b63b2aedca5429041a27f4409a7371d5bb01397ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-10T17:42:39Z","title_canon_sha256":"7080044b98c8d978a19577004b835f61a16d791600e4b06ba83bdb8fe60c792c"},"schema_version":"1.0","source":{"id":"1111.2533","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.2533","created_at":"2026-05-18T01:59:42Z"},{"alias_kind":"arxiv_version","alias_value":"1111.2533v1","created_at":"2026-05-18T01:59:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.2533","created_at":"2026-05-18T01:59:42Z"},{"alias_kind":"pith_short_12","alias_value":"74XPH4LUKLP3","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"74XPH4LUKLP3I27M","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"74XPH4LU","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:69c7faf32c7d06676509ef529f347e7cdffe9387119ce93157c6d5d038cdd73c","target":"graph","created_at":"2026-05-18T01:59:42Z","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":"Carbon-rich evolved stars from the asymptotic giant branch to the planetary nebula phase are characterized by a rich and complex carbon chemistry in their circumstellar envelopes. A peculiar object is the preplanetary nebula SMP LMC 11, whose Spitzer-IRS spectrum shows remarkable and diverse molecular absorption bands. To study how the molecular composition in this object compares to our current understanding of circumstellar carbon chemistry, we modeled this molecular absorption. We find high abundances for a number of molecules, perhaps most notably benzene. We also confirm the presence of p","authors_text":"Jan Cami, Jeronimo Bernard-Salas, Sarah E. Malek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-10T17:42:39Z","title":"The Rich Circumstellar Chemistry of SMP LMC 11"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.2533","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":"sha256:6f5509f569a76b3edfe709ffb68f5881217ab3b0c609eab3cba467ce6e7df1bf","target":"record","created_at":"2026-05-18T01:59:42Z","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":"6922d22903c63a8c70eff98b63b2aedca5429041a27f4409a7371d5bb01397ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-10T17:42:39Z","title_canon_sha256":"7080044b98c8d978a19577004b835f61a16d791600e4b06ba83bdb8fe60c792c"},"schema_version":"1.0","source":{"id":"1111.2533","kind":"arxiv","version":1}},"canonical_sha256":"ff2ef3f17452dfb46bec7eb1f0996223a8660e4cb30e89de511e59342c655856","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff2ef3f17452dfb46bec7eb1f0996223a8660e4cb30e89de511e59342c655856","first_computed_at":"2026-05-18T01:59:42.507193Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:42.507193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/cDLWPrX4ExSeBNkuuZZd8uCj3T8gnsfioUv5TyOB7vS/+l9extoi8gcZc9IQeBn8hQcATKyz1zCXy+o80w8DA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:42.507883Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.2533","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f5509f569a76b3edfe709ffb68f5881217ab3b0c609eab3cba467ce6e7df1bf","sha256:69c7faf32c7d06676509ef529f347e7cdffe9387119ce93157c6d5d038cdd73c"],"state_sha256":"345bcc3d27a01a820855a68b2ff8e5e196d3abe9e9d6f1ee41051fc5740d2b60"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LsQCUEuEhRng0LINnuttvGcyhWssfcdV5W1hG5bhlQRg1B3xXmVbsPOK4khFbHWNaD7hJJCjvZsSJmQcDoxbAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T10:21:38.449941Z","bundle_sha256":"5e4f867d61dbaadfed60b90d657d202d6f727c08467f2276efa8590e26b1bb4a"}}