{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:AP4SVP2HIRMAMZ6KMNKXSNGDRL","short_pith_number":"pith:AP4SVP2H","canonical_record":{"source":{"id":"2311.07983","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2023-11-14T08:23:43Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"4c0ad0ce51be406c08d758ec3fbd812d7f5eb4a5ba79a4be355978df530c0653","abstract_canon_sha256":"9d58e0671e3be35602759e29a0b8c3aebc5615f70987aab8a3e2aa9ba11fea2b"},"schema_version":"1.0"},"canonical_sha256":"03f92abf4744580667ca63557934c38aff09b509b7da571f58ef52ad065fd225","source":{"kind":"arxiv","id":"2311.07983","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.07983","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"arxiv_version","alias_value":"2311.07983v1","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.07983","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"pith_short_12","alias_value":"AP4SVP2HIRMA","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"pith_short_16","alias_value":"AP4SVP2HIRMAMZ6K","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"pith_short_8","alias_value":"AP4SVP2H","created_at":"2026-07-05T07:12:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:AP4SVP2HIRMAMZ6KMNKXSNGDRL","target":"record","payload":{"canonical_record":{"source":{"id":"2311.07983","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2023-11-14T08:23:43Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"4c0ad0ce51be406c08d758ec3fbd812d7f5eb4a5ba79a4be355978df530c0653","abstract_canon_sha256":"9d58e0671e3be35602759e29a0b8c3aebc5615f70987aab8a3e2aa9ba11fea2b"},"schema_version":"1.0"},"canonical_sha256":"03f92abf4744580667ca63557934c38aff09b509b7da571f58ef52ad065fd225","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:12:26.616997Z","signature_b64":"wsXY88WcVGGZVkdpgDl38pEDAXhFiqKHqm9CN72sKZDlOIcKjahdtt/ewoZAEFE79h5iUl43o3TC/K508DPXCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03f92abf4744580667ca63557934c38aff09b509b7da571f58ef52ad065fd225","last_reissued_at":"2026-07-05T07:12:26.616373Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:12:26.616373Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2311.07983","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":"2026-07-05T07:12:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gUqMccIxhlOZe4PZVNXPKH38uWb7MQr3SHa2nBjETgZayfyYpVYXOMUBjGICguuxF01brZKEjBQ6dBaek6jCAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T09:43:22.098394Z"},"content_sha256":"6f73deaa9d473bad029ccb879572d8bfa3886e9827c366ee01dd2cca9bf59643","schema_version":"1.0","event_id":"sha256:6f73deaa9d473bad029ccb879572d8bfa3886e9827c366ee01dd2cca9bf59643"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:AP4SVP2HIRMAMZ6KMNKXSNGDRL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ab Initio and Kinetic Modelling of $\\beta$-D-xylopyranose Under Fast Pyrolysis Conditions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.chem-ph","authors_text":"Jacopo Lupi, Leandro Ayarde-Henr\\'iquez, Mark Kelly, Stephen Dooley","submitted_at":"2023-11-14T08:23:43Z","abstract_excerpt":"Lignocellulosic biomass is an abundant renewable resource that can be upgraded to chemical and fuel products through a range of thermal conversion processes. Fast pyrolysis is a promising technology that uses high temperatures and fast heating rates to convert lignocellulose into bio-oils in high yields in the absence of oxygen. Hemicellulose is one of three major components of lignocellulosic biomass and is a highly branched heteropolymer structure made of pentose, hexose sugars, and sugar acids. In this study, $\\beta$-D-xylopyranose is proposed as a model structural motif for the essential c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.07983","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/2311.07983/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":"2026-07-05T07:12:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ygryw3Bl/DWhBT+iAXWwreo2N4QkXq1kDZFyHFfqaLFZanVQ/RDnp9pw9rqvnsPa9xhqy8uS/rylGosSRQB0Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T09:43:22.098907Z"},"content_sha256":"9d6a9fb60bdea1d968be089ef33d0e5852593a935fc69afbdeeab23f43bf0ca8","schema_version":"1.0","event_id":"sha256:9d6a9fb60bdea1d968be089ef33d0e5852593a935fc69afbdeeab23f43bf0ca8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AP4SVP2HIRMAMZ6KMNKXSNGDRL/bundle.json","state_url":"https://pith.science/pith/AP4SVP2HIRMAMZ6KMNKXSNGDRL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AP4SVP2HIRMAMZ6KMNKXSNGDRL/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":"2026-08-18T09:43:22Z","links":{"resolver":"https://pith.science/pith/AP4SVP2HIRMAMZ6KMNKXSNGDRL","bundle":"https://pith.science/pith/AP4SVP2HIRMAMZ6KMNKXSNGDRL/bundle.json","state":"https://pith.science/pith/AP4SVP2HIRMAMZ6KMNKXSNGDRL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AP4SVP2HIRMAMZ6KMNKXSNGDRL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:AP4SVP2HIRMAMZ6KMNKXSNGDRL","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":"9d58e0671e3be35602759e29a0b8c3aebc5615f70987aab8a3e2aa9ba11fea2b","cross_cats_sorted":["physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2023-11-14T08:23:43Z","title_canon_sha256":"4c0ad0ce51be406c08d758ec3fbd812d7f5eb4a5ba79a4be355978df530c0653"},"schema_version":"1.0","source":{"id":"2311.07983","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.07983","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"arxiv_version","alias_value":"2311.07983v1","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.07983","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"pith_short_12","alias_value":"AP4SVP2HIRMA","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"pith_short_16","alias_value":"AP4SVP2HIRMAMZ6K","created_at":"2026-07-05T07:12:26Z"},{"alias_kind":"pith_short_8","alias_value":"AP4SVP2H","created_at":"2026-07-05T07:12:26Z"}],"graph_snapshots":[{"event_id":"sha256:9d6a9fb60bdea1d968be089ef33d0e5852593a935fc69afbdeeab23f43bf0ca8","target":"graph","created_at":"2026-07-05T07:12:26Z","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/2311.07983/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Lignocellulosic biomass is an abundant renewable resource that can be upgraded to chemical and fuel products through a range of thermal conversion processes. Fast pyrolysis is a promising technology that uses high temperatures and fast heating rates to convert lignocellulose into bio-oils in high yields in the absence of oxygen. Hemicellulose is one of three major components of lignocellulosic biomass and is a highly branched heteropolymer structure made of pentose, hexose sugars, and sugar acids. In this study, $\\beta$-D-xylopyranose is proposed as a model structural motif for the essential c","authors_text":"Jacopo Lupi, Leandro Ayarde-Henr\\'iquez, Mark Kelly, Stephen Dooley","cross_cats":["physics.comp-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2023-11-14T08:23:43Z","title":"Ab Initio and Kinetic Modelling of $\\beta$-D-xylopyranose Under Fast Pyrolysis Conditions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.07983","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":"sha256:6f73deaa9d473bad029ccb879572d8bfa3886e9827c366ee01dd2cca9bf59643","target":"record","created_at":"2026-07-05T07:12:26Z","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":"9d58e0671e3be35602759e29a0b8c3aebc5615f70987aab8a3e2aa9ba11fea2b","cross_cats_sorted":["physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2023-11-14T08:23:43Z","title_canon_sha256":"4c0ad0ce51be406c08d758ec3fbd812d7f5eb4a5ba79a4be355978df530c0653"},"schema_version":"1.0","source":{"id":"2311.07983","kind":"arxiv","version":1}},"canonical_sha256":"03f92abf4744580667ca63557934c38aff09b509b7da571f58ef52ad065fd225","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03f92abf4744580667ca63557934c38aff09b509b7da571f58ef52ad065fd225","first_computed_at":"2026-07-05T07:12:26.616373Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:12:26.616373Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wsXY88WcVGGZVkdpgDl38pEDAXhFiqKHqm9CN72sKZDlOIcKjahdtt/ewoZAEFE79h5iUl43o3TC/K508DPXCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:12:26.616997Z","signed_message":"canonical_sha256_bytes"},"source_id":"2311.07983","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f73deaa9d473bad029ccb879572d8bfa3886e9827c366ee01dd2cca9bf59643","sha256:9d6a9fb60bdea1d968be089ef33d0e5852593a935fc69afbdeeab23f43bf0ca8"],"state_sha256":"b887509db73607959a42b12d6541589523e86242968915598f97718cf32655de"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IQ1WTF9WJniRXIsL3wn7e5iDm3pv+HwSXGcYOlz4rhaH2A5Fxuadk1WxoRiM68UJF6Re9FVAhHNKOwxBB74vAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T09:43:22.104144Z","bundle_sha256":"81c751edb21d2abe1d87fa48669f155769a00afd9777d6e71462800fac8ba2bd"}}