{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:QG2GF47UCEPNFNVEGT3OCGEV6C","short_pith_number":"pith:QG2GF47U","canonical_record":{"source":{"id":"1708.07437","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-24T14:27:24Z","cross_cats_sorted":[],"title_canon_sha256":"c0f02b4d779d272dc060e99f1cec322ef08ab583be6839c3aaa81d2d393c5196","abstract_canon_sha256":"5bf68d0e006064e8e4dc8a718b45f9d1e313b63f49eaabcb1db405d22878d2a0"},"schema_version":"1.0"},"canonical_sha256":"81b462f3f4111ed2b6a434f6e11895f08bfb657a88a647474c44980aa5f08f3d","source":{"kind":"arxiv","id":"1708.07437","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.07437","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"arxiv_version","alias_value":"1708.07437v2","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.07437","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"pith_short_12","alias_value":"QG2GF47UCEPN","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"QG2GF47UCEPNFNVE","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"QG2GF47U","created_at":"2026-05-18T12:31:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:QG2GF47UCEPNFNVEGT3OCGEV6C","target":"record","payload":{"canonical_record":{"source":{"id":"1708.07437","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-24T14:27:24Z","cross_cats_sorted":[],"title_canon_sha256":"c0f02b4d779d272dc060e99f1cec322ef08ab583be6839c3aaa81d2d393c5196","abstract_canon_sha256":"5bf68d0e006064e8e4dc8a718b45f9d1e313b63f49eaabcb1db405d22878d2a0"},"schema_version":"1.0"},"canonical_sha256":"81b462f3f4111ed2b6a434f6e11895f08bfb657a88a647474c44980aa5f08f3d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:27.146520Z","signature_b64":"VVx4UIZqe/nrxGsSxHHcnttU5lcG5+aBHq7d+/NrsB5XJqlMFIfCL+9QQIwWM0oMr1EF56iwwtW76eMk4gblCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"81b462f3f4111ed2b6a434f6e11895f08bfb657a88a647474c44980aa5f08f3d","last_reissued_at":"2026-05-18T00:19:27.145978Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:27.145978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.07437","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":"2026-05-18T00:19:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"90E0ntK9tP+FQQVaP7gVkhRrMqHCIPXcs0VJ4+oylBCbz7PRJoF9lk7NlBLdNPwR/MqAXtgVHGZySqInDihyDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:37:46.045076Z"},"content_sha256":"239f3c192bcfe4ef57e2eb8f01481c3d79ef035a070548fa10c38e663fc20ab6","schema_version":"1.0","event_id":"sha256:239f3c192bcfe4ef57e2eb8f01481c3d79ef035a070548fa10c38e663fc20ab6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:QG2GF47UCEPNFNVEGT3OCGEV6C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dirac field and gravity in NC $SO(2,3)_\\star$ model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Dragoljub Go\\v{c}anin, Voja Radovanovi\\'c","submitted_at":"2017-08-24T14:27:24Z","abstract_excerpt":"Action for the Dirac spinor field coupled to gravity on noncommutative (NC) Moyal-Weyl space-time is obtained without prior knowledge of the metric tensor. We emphasise gauge origins of gravity (i.e. metric structure) and its interaction with fermions by demonstrating that a classical action invariant under $SO(2,3)$ gauge transformations can be exactly reduced to the Dirac action in curved space-time after breaking the original symmetry down to the local Lorentz $SO(1,3)$ symmetry. The commutative, $SO(2,3)$ invariant action can be straightforwardly deformed via Moyal-Weyl $\\star$-product to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.07437","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":"2026-05-18T00:19:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a4aB6W/mV8+koRsLRDL1spT8uqitH/DKdAeiLe4VORaAcflx75+jDfM1wQG77sHHJ5PXCS3cl/nTqeEAB0MMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:37:46.045772Z"},"content_sha256":"849f7415bfa39de8556343c4c5036894f42cdec0b34e137f57c39f09d57fa059","schema_version":"1.0","event_id":"sha256:849f7415bfa39de8556343c4c5036894f42cdec0b34e137f57c39f09d57fa059"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QG2GF47UCEPNFNVEGT3OCGEV6C/bundle.json","state_url":"https://pith.science/pith/QG2GF47UCEPNFNVEGT3OCGEV6C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QG2GF47UCEPNFNVEGT3OCGEV6C/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":"2026-05-28T17:37:46Z","links":{"resolver":"https://pith.science/pith/QG2GF47UCEPNFNVEGT3OCGEV6C","bundle":"https://pith.science/pith/QG2GF47UCEPNFNVEGT3OCGEV6C/bundle.json","state":"https://pith.science/pith/QG2GF47UCEPNFNVEGT3OCGEV6C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QG2GF47UCEPNFNVEGT3OCGEV6C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QG2GF47UCEPNFNVEGT3OCGEV6C","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":"5bf68d0e006064e8e4dc8a718b45f9d1e313b63f49eaabcb1db405d22878d2a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-24T14:27:24Z","title_canon_sha256":"c0f02b4d779d272dc060e99f1cec322ef08ab583be6839c3aaa81d2d393c5196"},"schema_version":"1.0","source":{"id":"1708.07437","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.07437","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"arxiv_version","alias_value":"1708.07437v2","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.07437","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"pith_short_12","alias_value":"QG2GF47UCEPN","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"QG2GF47UCEPNFNVE","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"QG2GF47U","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:849f7415bfa39de8556343c4c5036894f42cdec0b34e137f57c39f09d57fa059","target":"graph","created_at":"2026-05-18T00:19:27Z","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":"Action for the Dirac spinor field coupled to gravity on noncommutative (NC) Moyal-Weyl space-time is obtained without prior knowledge of the metric tensor. We emphasise gauge origins of gravity (i.e. metric structure) and its interaction with fermions by demonstrating that a classical action invariant under $SO(2,3)$ gauge transformations can be exactly reduced to the Dirac action in curved space-time after breaking the original symmetry down to the local Lorentz $SO(1,3)$ symmetry. The commutative, $SO(2,3)$ invariant action can be straightforwardly deformed via Moyal-Weyl $\\star$-product to ","authors_text":"Dragoljub Go\\v{c}anin, Voja Radovanovi\\'c","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-24T14:27:24Z","title":"Dirac field and gravity in NC $SO(2,3)_\\star$ model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.07437","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":"sha256:239f3c192bcfe4ef57e2eb8f01481c3d79ef035a070548fa10c38e663fc20ab6","target":"record","created_at":"2026-05-18T00:19:27Z","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":"5bf68d0e006064e8e4dc8a718b45f9d1e313b63f49eaabcb1db405d22878d2a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-24T14:27:24Z","title_canon_sha256":"c0f02b4d779d272dc060e99f1cec322ef08ab583be6839c3aaa81d2d393c5196"},"schema_version":"1.0","source":{"id":"1708.07437","kind":"arxiv","version":2}},"canonical_sha256":"81b462f3f4111ed2b6a434f6e11895f08bfb657a88a647474c44980aa5f08f3d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"81b462f3f4111ed2b6a434f6e11895f08bfb657a88a647474c44980aa5f08f3d","first_computed_at":"2026-05-18T00:19:27.145978Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:27.145978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VVx4UIZqe/nrxGsSxHHcnttU5lcG5+aBHq7d+/NrsB5XJqlMFIfCL+9QQIwWM0oMr1EF56iwwtW76eMk4gblCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:27.146520Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.07437","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:239f3c192bcfe4ef57e2eb8f01481c3d79ef035a070548fa10c38e663fc20ab6","sha256:849f7415bfa39de8556343c4c5036894f42cdec0b34e137f57c39f09d57fa059"],"state_sha256":"387351213810ccf0df1101181dd42fd8bcb8ea6827df565e16d39a5ab1960dd8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+18yDOiqjfdMzPsycjFAHApKsxVi5Z/DU/Cllv3gEopVFyaevS2rk/8U/t0TRjMOCDA/IHRJawL1LE/TQYkCCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T17:37:46.049328Z","bundle_sha256":"aa83915a59749a8ee8bfa075f0e0724fbe0fbbb6ff5bbf164ece5e671c237541"}}