{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:SHHHPEBGBYM3UZMMLDZUE4MWOC","short_pith_number":"pith:SHHHPEBG","canonical_record":{"source":{"id":"1509.00722","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-02T14:40:18Z","cross_cats_sorted":[],"title_canon_sha256":"b10bdcea2a993a16ef24f2d102b0f2837e44ad65d22355e46be008077ae6e596","abstract_canon_sha256":"ca1ac7b47e11c389835d0aec9ccd8155f68a59d269bf58177920db68b1b2454e"},"schema_version":"1.0"},"canonical_sha256":"91ce7790260e19ba658c58f342719670ae82dc0a4f5e37d8f7af48fc327e74f9","source":{"kind":"arxiv","id":"1509.00722","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.00722","created_at":"2026-05-18T01:27:38Z"},{"alias_kind":"arxiv_version","alias_value":"1509.00722v3","created_at":"2026-05-18T01:27:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.00722","created_at":"2026-05-18T01:27:38Z"},{"alias_kind":"pith_short_12","alias_value":"SHHHPEBGBYM3","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"SHHHPEBGBYM3UZMM","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"SHHHPEBG","created_at":"2026-05-18T12:29:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:SHHHPEBGBYM3UZMMLDZUE4MWOC","target":"record","payload":{"canonical_record":{"source":{"id":"1509.00722","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-02T14:40:18Z","cross_cats_sorted":[],"title_canon_sha256":"b10bdcea2a993a16ef24f2d102b0f2837e44ad65d22355e46be008077ae6e596","abstract_canon_sha256":"ca1ac7b47e11c389835d0aec9ccd8155f68a59d269bf58177920db68b1b2454e"},"schema_version":"1.0"},"canonical_sha256":"91ce7790260e19ba658c58f342719670ae82dc0a4f5e37d8f7af48fc327e74f9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:27:38.189629Z","signature_b64":"PbAajgSMrV0CiaDpm3qYMyo6+CfmTjMawsIruzjWidV8074DDzJ+oy7k3ixzPAhNR67/6qjxwFw729SdhbQcAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91ce7790260e19ba658c58f342719670ae82dc0a4f5e37d8f7af48fc327e74f9","last_reissued_at":"2026-05-18T01:27:38.188914Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:27:38.188914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.00722","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:27:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HtXXECoZ8qXj7OdP1o5J5gKQfvNsIgjFGG20Ywr07IX+VVPDPTrLwpGpyTV2TJEnp3Za2LOcYlJqMjKL74UWCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:11:23.533890Z"},"content_sha256":"594cbda411d408fa74781a6e76f2bcb728221e40e357e3a89a5a2eaec695c2bf","schema_version":"1.0","event_id":"sha256:594cbda411d408fa74781a6e76f2bcb728221e40e357e3a89a5a2eaec695c2bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:SHHHPEBGBYM3UZMMLDZUE4MWOC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A universal chemical potential for sulfur vapours","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Adam J. Jackson, Aron Walsh, Davide Tiana","submitted_at":"2015-09-02T14:40:18Z","abstract_excerpt":"The unusual chemistry of sulfur is illustrated by the tendency for catenation. Sulfur forms a range of open and closed S$_n$ species in the gas phase, which has led to speculation on the composition of sulfur vapours as a function of temperature and pressure for over a century. Unlike elemental gases such as O$_2$ and N$_2$, there is no widely accepted thermodynamic potential for sulfur. Here we combine a first-principles global structure search for the low energy clusters from S$_2$ to S$_8$ with a thermodynamic model for the mixed-allotrope system, including the Gibbs free energy for all gas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.00722","kind":"arxiv","version":3},"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":"2026-05-18T01:27:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TEx/4Z65bvsd6D0a812RhQ//jXY7w7L3noU8PwnV23ewNZWbwbP0KARJpNpK15Kuwdt/6VN8VXs9+kRrlwPtCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:11:23.534407Z"},"content_sha256":"04f20a3a5e0df4377f932bfec48de2fe2ce1a20dce2e0414bb6bd8c57fe23685","schema_version":"1.0","event_id":"sha256:04f20a3a5e0df4377f932bfec48de2fe2ce1a20dce2e0414bb6bd8c57fe23685"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SHHHPEBGBYM3UZMMLDZUE4MWOC/bundle.json","state_url":"https://pith.science/pith/SHHHPEBGBYM3UZMMLDZUE4MWOC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SHHHPEBGBYM3UZMMLDZUE4MWOC/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":"2026-05-26T00:11:23Z","links":{"resolver":"https://pith.science/pith/SHHHPEBGBYM3UZMMLDZUE4MWOC","bundle":"https://pith.science/pith/SHHHPEBGBYM3UZMMLDZUE4MWOC/bundle.json","state":"https://pith.science/pith/SHHHPEBGBYM3UZMMLDZUE4MWOC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SHHHPEBGBYM3UZMMLDZUE4MWOC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:SHHHPEBGBYM3UZMMLDZUE4MWOC","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":"ca1ac7b47e11c389835d0aec9ccd8155f68a59d269bf58177920db68b1b2454e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-02T14:40:18Z","title_canon_sha256":"b10bdcea2a993a16ef24f2d102b0f2837e44ad65d22355e46be008077ae6e596"},"schema_version":"1.0","source":{"id":"1509.00722","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.00722","created_at":"2026-05-18T01:27:38Z"},{"alias_kind":"arxiv_version","alias_value":"1509.00722v3","created_at":"2026-05-18T01:27:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.00722","created_at":"2026-05-18T01:27:38Z"},{"alias_kind":"pith_short_12","alias_value":"SHHHPEBGBYM3","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"SHHHPEBGBYM3UZMM","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"SHHHPEBG","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:04f20a3a5e0df4377f932bfec48de2fe2ce1a20dce2e0414bb6bd8c57fe23685","target":"graph","created_at":"2026-05-18T01:27:38Z","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 unusual chemistry of sulfur is illustrated by the tendency for catenation. Sulfur forms a range of open and closed S$_n$ species in the gas phase, which has led to speculation on the composition of sulfur vapours as a function of temperature and pressure for over a century. Unlike elemental gases such as O$_2$ and N$_2$, there is no widely accepted thermodynamic potential for sulfur. Here we combine a first-principles global structure search for the low energy clusters from S$_2$ to S$_8$ with a thermodynamic model for the mixed-allotrope system, including the Gibbs free energy for all gas","authors_text":"Adam J. Jackson, Aron Walsh, Davide Tiana","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-02T14:40:18Z","title":"A universal chemical potential for sulfur vapours"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.00722","kind":"arxiv","version":3},"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":"sha256:594cbda411d408fa74781a6e76f2bcb728221e40e357e3a89a5a2eaec695c2bf","target":"record","created_at":"2026-05-18T01:27:38Z","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":"ca1ac7b47e11c389835d0aec9ccd8155f68a59d269bf58177920db68b1b2454e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-02T14:40:18Z","title_canon_sha256":"b10bdcea2a993a16ef24f2d102b0f2837e44ad65d22355e46be008077ae6e596"},"schema_version":"1.0","source":{"id":"1509.00722","kind":"arxiv","version":3}},"canonical_sha256":"91ce7790260e19ba658c58f342719670ae82dc0a4f5e37d8f7af48fc327e74f9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91ce7790260e19ba658c58f342719670ae82dc0a4f5e37d8f7af48fc327e74f9","first_computed_at":"2026-05-18T01:27:38.188914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:38.188914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PbAajgSMrV0CiaDpm3qYMyo6+CfmTjMawsIruzjWidV8074DDzJ+oy7k3ixzPAhNR67/6qjxwFw729SdhbQcAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:38.189629Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.00722","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:594cbda411d408fa74781a6e76f2bcb728221e40e357e3a89a5a2eaec695c2bf","sha256:04f20a3a5e0df4377f932bfec48de2fe2ce1a20dce2e0414bb6bd8c57fe23685"],"state_sha256":"beb0c1d31089e6692e220850cd392cc624145bad0ec603f29ac732355c6711c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RaqixIxrERiXnf2J8kSisZvfgq+j5npHv78O6kTpBsuA8P7AP/egftP03vEQWTmMlcQ510v+fcEnonfEBHrrAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T00:11:23.538030Z","bundle_sha256":"63a746ff7abb524c4d51b61c2d84ea530fa4949e1d745a76f22894a1d5052ff1"}}