{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:6T54FR7TO2QMKC4DWQXCLRX4IX","short_pith_number":"pith:6T54FR7T","canonical_record":{"source":{"id":"1508.00504","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-31T16:21:17Z","cross_cats_sorted":["cond-mat.dis-nn","physics.soc-ph"],"title_canon_sha256":"ebba1469a6b6ce5185f40fa3776239e646cff19e0155c17076b9154946150121","abstract_canon_sha256":"343f0d9085265e4a85ebc8df73c1fe500941736c7237eb25644081ae1a1b3dd6"},"schema_version":"1.0"},"canonical_sha256":"f4fbc2c7f376a0c50b83b42e25c6fc45c720499ee609b888c4725d1bea26cc55","source":{"kind":"arxiv","id":"1508.00504","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.00504","created_at":"2026-05-18T01:35:57Z"},{"alias_kind":"arxiv_version","alias_value":"1508.00504v1","created_at":"2026-05-18T01:35:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.00504","created_at":"2026-05-18T01:35:57Z"},{"alias_kind":"pith_short_12","alias_value":"6T54FR7TO2QM","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6T54FR7TO2QMKC4D","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6T54FR7T","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:6T54FR7TO2QMKC4DWQXCLRX4IX","target":"record","payload":{"canonical_record":{"source":{"id":"1508.00504","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-31T16:21:17Z","cross_cats_sorted":["cond-mat.dis-nn","physics.soc-ph"],"title_canon_sha256":"ebba1469a6b6ce5185f40fa3776239e646cff19e0155c17076b9154946150121","abstract_canon_sha256":"343f0d9085265e4a85ebc8df73c1fe500941736c7237eb25644081ae1a1b3dd6"},"schema_version":"1.0"},"canonical_sha256":"f4fbc2c7f376a0c50b83b42e25c6fc45c720499ee609b888c4725d1bea26cc55","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:57.920632Z","signature_b64":"dXI3eUUA5qfH96LjjBhhdK6U73wXG0RmIltuSJZ2QdKDegoNOcQLbL+7OePdVFW962JvlrF7U/QGbkQFTLPQDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f4fbc2c7f376a0c50b83b42e25c6fc45c720499ee609b888c4725d1bea26cc55","last_reissued_at":"2026-05-18T01:35:57.920176Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:57.920176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.00504","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":"2026-05-18T01:35:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8EkyoDCHLTkjy3t5Skkoh2sA7rkQyY1vm6JSqT5a20kDfNK0w3SrH+2t6oODVoXXAKJmXql5H+H8ubg1fo7QBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T01:57:26.760239Z"},"content_sha256":"05b74c114ba7f2347020a692d4c807e504c6f644d16b7e273cd93e0a641c463a","schema_version":"1.0","event_id":"sha256:05b74c114ba7f2347020a692d4c807e504c6f644d16b7e273cd93e0a641c463a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:6T54FR7TO2QMKC4DWQXCLRX4IX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin Glass Models of Syntax and Language Evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.dis-nn","physics.soc-ph"],"primary_cat":"cs.CL","authors_text":"Jim Tao, Karthik Siva, Matilde Marcolli","submitted_at":"2015-07-31T16:21:17Z","abstract_excerpt":"Using the SSWL database of syntactic parameters of world languages, and the MIT Media Lab data on language interactions, we construct a spin glass model of language evolution. We treat binary syntactic parameters as spin states, with languages as vertices of a graph, and assigned interaction energies along the edges. We study a rough model of syntax evolution, under the assumption that a strong interaction energy tends to cause parameters to align, as in the case of ferromagnetic materials. We also study how the spin glass model needs to be modified to account for entailment relations between "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.00504","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":"2026-05-18T01:35:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IRq7NIeRSWFGQmZw8AZ80hbuGvfzMrh7C4kcNfyFrCWMzPWhqMnoniG6fO+6n1M4zDTXlITV6lTcmSrC43sGDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T01:57:26.760973Z"},"content_sha256":"0200165dc13fd4662e21b929651a875001733d27323cb2d508d544f946cb1840","schema_version":"1.0","event_id":"sha256:0200165dc13fd4662e21b929651a875001733d27323cb2d508d544f946cb1840"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6T54FR7TO2QMKC4DWQXCLRX4IX/bundle.json","state_url":"https://pith.science/pith/6T54FR7TO2QMKC4DWQXCLRX4IX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6T54FR7TO2QMKC4DWQXCLRX4IX/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":"2026-06-09T01:57:26Z","links":{"resolver":"https://pith.science/pith/6T54FR7TO2QMKC4DWQXCLRX4IX","bundle":"https://pith.science/pith/6T54FR7TO2QMKC4DWQXCLRX4IX/bundle.json","state":"https://pith.science/pith/6T54FR7TO2QMKC4DWQXCLRX4IX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6T54FR7TO2QMKC4DWQXCLRX4IX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6T54FR7TO2QMKC4DWQXCLRX4IX","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":"343f0d9085265e4a85ebc8df73c1fe500941736c7237eb25644081ae1a1b3dd6","cross_cats_sorted":["cond-mat.dis-nn","physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-31T16:21:17Z","title_canon_sha256":"ebba1469a6b6ce5185f40fa3776239e646cff19e0155c17076b9154946150121"},"schema_version":"1.0","source":{"id":"1508.00504","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.00504","created_at":"2026-05-18T01:35:57Z"},{"alias_kind":"arxiv_version","alias_value":"1508.00504v1","created_at":"2026-05-18T01:35:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.00504","created_at":"2026-05-18T01:35:57Z"},{"alias_kind":"pith_short_12","alias_value":"6T54FR7TO2QM","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6T54FR7TO2QMKC4D","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6T54FR7T","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:0200165dc13fd4662e21b929651a875001733d27323cb2d508d544f946cb1840","target":"graph","created_at":"2026-05-18T01:35:57Z","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":"Using the SSWL database of syntactic parameters of world languages, and the MIT Media Lab data on language interactions, we construct a spin glass model of language evolution. We treat binary syntactic parameters as spin states, with languages as vertices of a graph, and assigned interaction energies along the edges. We study a rough model of syntax evolution, under the assumption that a strong interaction energy tends to cause parameters to align, as in the case of ferromagnetic materials. We also study how the spin glass model needs to be modified to account for entailment relations between ","authors_text":"Jim Tao, Karthik Siva, Matilde Marcolli","cross_cats":["cond-mat.dis-nn","physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-31T16:21:17Z","title":"Spin Glass Models of Syntax and Language Evolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.00504","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":"sha256:05b74c114ba7f2347020a692d4c807e504c6f644d16b7e273cd93e0a641c463a","target":"record","created_at":"2026-05-18T01:35:57Z","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":"343f0d9085265e4a85ebc8df73c1fe500941736c7237eb25644081ae1a1b3dd6","cross_cats_sorted":["cond-mat.dis-nn","physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-31T16:21:17Z","title_canon_sha256":"ebba1469a6b6ce5185f40fa3776239e646cff19e0155c17076b9154946150121"},"schema_version":"1.0","source":{"id":"1508.00504","kind":"arxiv","version":1}},"canonical_sha256":"f4fbc2c7f376a0c50b83b42e25c6fc45c720499ee609b888c4725d1bea26cc55","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f4fbc2c7f376a0c50b83b42e25c6fc45c720499ee609b888c4725d1bea26cc55","first_computed_at":"2026-05-18T01:35:57.920176Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:57.920176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dXI3eUUA5qfH96LjjBhhdK6U73wXG0RmIltuSJZ2QdKDegoNOcQLbL+7OePdVFW962JvlrF7U/QGbkQFTLPQDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:57.920632Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.00504","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:05b74c114ba7f2347020a692d4c807e504c6f644d16b7e273cd93e0a641c463a","sha256:0200165dc13fd4662e21b929651a875001733d27323cb2d508d544f946cb1840"],"state_sha256":"400445b7f7525af3680e8142d47fdb6ceca39f8d448d070c1f0011c11dcfb66f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BUBRv9EfQ5Nv7oEuJ5x3X1p8+SM+E65CIrrG9BzXmfFUlWyf6DxWehsWfoKTDzwZusnsCl+f2Op1kzlHXsSXAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T01:57:26.764912Z","bundle_sha256":"08ccff7c5efcd1671708debda4d19d7fda5331b551e1144afa9806563822b4fb"}}