{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:ZF54Q7HSPU65WCCEGOI5WODMCB","short_pith_number":"pith:ZF54Q7HS","canonical_record":{"source":{"id":"0910.1418","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2009-10-08T19:48:20Z","cross_cats_sorted":["cs.CE","q-bio.CB"],"title_canon_sha256":"d802e37ba1bb8075d9f273dbf78c0be81d9c7f3cb9328f6bf1fbfaa800fd2ef0","abstract_canon_sha256":"ee879d07d8dbe7b9286d2e3c23836e0ecc91501e28eecff430ebf5a22c7ca8df"},"schema_version":"1.0"},"canonical_sha256":"c97bc87cf27d3ddb08443391db386c107a21c25eb3cecfff774b3b7f090e3366","source":{"kind":"arxiv","id":"0910.1418","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.1418","created_at":"2026-05-18T02:24:46Z"},{"alias_kind":"arxiv_version","alias_value":"0910.1418v2","created_at":"2026-05-18T02:24:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.1418","created_at":"2026-05-18T02:24:46Z"},{"alias_kind":"pith_short_12","alias_value":"ZF54Q7HSPU65","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"ZF54Q7HSPU65WCCE","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"ZF54Q7HS","created_at":"2026-05-18T12:26:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:ZF54Q7HSPU65WCCEGOI5WODMCB","target":"record","payload":{"canonical_record":{"source":{"id":"0910.1418","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2009-10-08T19:48:20Z","cross_cats_sorted":["cs.CE","q-bio.CB"],"title_canon_sha256":"d802e37ba1bb8075d9f273dbf78c0be81d9c7f3cb9328f6bf1fbfaa800fd2ef0","abstract_canon_sha256":"ee879d07d8dbe7b9286d2e3c23836e0ecc91501e28eecff430ebf5a22c7ca8df"},"schema_version":"1.0"},"canonical_sha256":"c97bc87cf27d3ddb08443391db386c107a21c25eb3cecfff774b3b7f090e3366","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:24:46.889041Z","signature_b64":"n9taPGu/Kgu3xB6OFKJyTvAv/nMFoHNSsiFz2DCPniaGz0PW1ynfPE89Dn74BhjsSl5idrvv4MzNy4cf+SRCBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c97bc87cf27d3ddb08443391db386c107a21c25eb3cecfff774b3b7f090e3366","last_reissued_at":"2026-05-18T02:24:46.888197Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:24:46.888197Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.1418","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:24:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v5n5Gd1XuCOxM5pcBZ5ehyne6OqpxCKTfD7s2h/vIWVjY+QAokB6sxq7OMMNFe4EmDS885pRn0LWQ1Qi4Vk3Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:44:42.602719Z"},"content_sha256":"1f0797d234e52107a48cd265dfbe8eea5ad8f35658509679702e2a0dd876d37e","schema_version":"1.0","event_id":"sha256:1f0797d234e52107a48cd265dfbe8eea5ad8f35658509679702e2a0dd876d37e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:ZF54Q7HSPU65WCCEGOI5WODMCB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modelling an Ammonium Transporter with SCLS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CE","q-bio.CB"],"primary_cat":"q-bio.QM","authors_text":"Angelo Troina (Dipartimento di Informatica, Biologia e Biochimica, Dipartimento di Genetica, Dipartimento di Informatica, Elena Grassi (Molecular Biotechnology Center, Ferruccio Damiani (Dipartimento di Informatica, Mario Coppo (Dipartimento di Informatica, Mike Guether (Dipartimento di Biologia Vegetale, Universit\\'a di Torino), Universit\\`a di Torino)","submitted_at":"2009-10-08T19:48:20Z","abstract_excerpt":"The Stochastic Calculus of Looping Sequences (SCLS) is a recently proposed modelling language for the representation and simulation of biological systems behaviour. It has been designed with the aim of combining the simplicity of notation of rewrite systems with the advantage of compositionality. It also allows a rather simple and accurate description of biological membranes and their interactions with the environment.\n  In this work we apply SCLS to model a newly discovered ammonium transporter. This transporter is believed to play a fundamental role for plant mineral acquisition, which takes"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.1418","kind":"arxiv","version":2},"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":"2026-05-18T02:24:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1EYtxTJds5j8vZTCGHkgRPqUKEqMpyKuGq81OOhOAIl47pr0fsxIu3gDtscGG0++455tJc1pD/o4dCe2IeeAAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:44:42.603470Z"},"content_sha256":"973ec9668c3078319b1a924c06110c142d61d51201dc4d14ebd78352cb5e2785","schema_version":"1.0","event_id":"sha256:973ec9668c3078319b1a924c06110c142d61d51201dc4d14ebd78352cb5e2785"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZF54Q7HSPU65WCCEGOI5WODMCB/bundle.json","state_url":"https://pith.science/pith/ZF54Q7HSPU65WCCEGOI5WODMCB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZF54Q7HSPU65WCCEGOI5WODMCB/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":"2026-05-31T15:44:42Z","links":{"resolver":"https://pith.science/pith/ZF54Q7HSPU65WCCEGOI5WODMCB","bundle":"https://pith.science/pith/ZF54Q7HSPU65WCCEGOI5WODMCB/bundle.json","state":"https://pith.science/pith/ZF54Q7HSPU65WCCEGOI5WODMCB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZF54Q7HSPU65WCCEGOI5WODMCB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:ZF54Q7HSPU65WCCEGOI5WODMCB","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":"ee879d07d8dbe7b9286d2e3c23836e0ecc91501e28eecff430ebf5a22c7ca8df","cross_cats_sorted":["cs.CE","q-bio.CB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2009-10-08T19:48:20Z","title_canon_sha256":"d802e37ba1bb8075d9f273dbf78c0be81d9c7f3cb9328f6bf1fbfaa800fd2ef0"},"schema_version":"1.0","source":{"id":"0910.1418","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.1418","created_at":"2026-05-18T02:24:46Z"},{"alias_kind":"arxiv_version","alias_value":"0910.1418v2","created_at":"2026-05-18T02:24:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.1418","created_at":"2026-05-18T02:24:46Z"},{"alias_kind":"pith_short_12","alias_value":"ZF54Q7HSPU65","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"ZF54Q7HSPU65WCCE","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"ZF54Q7HS","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:973ec9668c3078319b1a924c06110c142d61d51201dc4d14ebd78352cb5e2785","target":"graph","created_at":"2026-05-18T02:24:46Z","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":"The Stochastic Calculus of Looping Sequences (SCLS) is a recently proposed modelling language for the representation and simulation of biological systems behaviour. It has been designed with the aim of combining the simplicity of notation of rewrite systems with the advantage of compositionality. It also allows a rather simple and accurate description of biological membranes and their interactions with the environment.\n  In this work we apply SCLS to model a newly discovered ammonium transporter. This transporter is believed to play a fundamental role for plant mineral acquisition, which takes","authors_text":"Angelo Troina (Dipartimento di Informatica, Biologia e Biochimica, Dipartimento di Genetica, Dipartimento di Informatica, Elena Grassi (Molecular Biotechnology Center, Ferruccio Damiani (Dipartimento di Informatica, Mario Coppo (Dipartimento di Informatica, Mike Guether (Dipartimento di Biologia Vegetale, Universit\\'a di Torino), Universit\\`a di Torino)","cross_cats":["cs.CE","q-bio.CB"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2009-10-08T19:48:20Z","title":"Modelling an Ammonium Transporter with SCLS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.1418","kind":"arxiv","version":2},"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":"sha256:1f0797d234e52107a48cd265dfbe8eea5ad8f35658509679702e2a0dd876d37e","target":"record","created_at":"2026-05-18T02:24:46Z","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":"ee879d07d8dbe7b9286d2e3c23836e0ecc91501e28eecff430ebf5a22c7ca8df","cross_cats_sorted":["cs.CE","q-bio.CB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2009-10-08T19:48:20Z","title_canon_sha256":"d802e37ba1bb8075d9f273dbf78c0be81d9c7f3cb9328f6bf1fbfaa800fd2ef0"},"schema_version":"1.0","source":{"id":"0910.1418","kind":"arxiv","version":2}},"canonical_sha256":"c97bc87cf27d3ddb08443391db386c107a21c25eb3cecfff774b3b7f090e3366","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c97bc87cf27d3ddb08443391db386c107a21c25eb3cecfff774b3b7f090e3366","first_computed_at":"2026-05-18T02:24:46.888197Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:24:46.888197Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n9taPGu/Kgu3xB6OFKJyTvAv/nMFoHNSsiFz2DCPniaGz0PW1ynfPE89Dn74BhjsSl5idrvv4MzNy4cf+SRCBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:24:46.889041Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.1418","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f0797d234e52107a48cd265dfbe8eea5ad8f35658509679702e2a0dd876d37e","sha256:973ec9668c3078319b1a924c06110c142d61d51201dc4d14ebd78352cb5e2785"],"state_sha256":"1f92875ec506669fdf64f78c35d06ab2d81392ba9158f662c7fde2f5e547ad5a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VJmSAiOJLKdC5QqvER19Ihl2A68NgDQeS/FC4AwZ3HAe/5RHuAKe0pzVnSMsJm2OF0SQhfS0xKj7zalpIjYjAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T15:44:42.607543Z","bundle_sha256":"68007582367a1e2fb8742889ab5797d4b76a4438bc9d1a9260b6907e2bc862f8"}}