{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:4TIU624FWA3LYOTRJ52FQDAKAI","short_pith_number":"pith:4TIU624F","canonical_record":{"source":{"id":"1911.09502","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2019-11-10T19:32:11Z","cross_cats_sorted":[],"title_canon_sha256":"8a66f9c8c168d5412cab05685d0c1f1d84562469d92f1037b5908045e113119b","abstract_canon_sha256":"73c60837aee23c2571b7130de16d4673bd816835b2ddf5dfb5ddd2d87abcac04"},"schema_version":"1.0"},"canonical_sha256":"e4d14f6b85b036bc3a714f74580c0a022558c0605bb12fd3ace3893978528a0d","source":{"kind":"arxiv","id":"1911.09502","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.09502","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"arxiv_version","alias_value":"1911.09502v1","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.09502","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"pith_short_12","alias_value":"4TIU624FWA3L","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"pith_short_16","alias_value":"4TIU624FWA3LYOTR","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"pith_short_8","alias_value":"4TIU624F","created_at":"2026-07-05T00:21:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:4TIU624FWA3LYOTRJ52FQDAKAI","target":"record","payload":{"canonical_record":{"source":{"id":"1911.09502","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2019-11-10T19:32:11Z","cross_cats_sorted":[],"title_canon_sha256":"8a66f9c8c168d5412cab05685d0c1f1d84562469d92f1037b5908045e113119b","abstract_canon_sha256":"73c60837aee23c2571b7130de16d4673bd816835b2ddf5dfb5ddd2d87abcac04"},"schema_version":"1.0"},"canonical_sha256":"e4d14f6b85b036bc3a714f74580c0a022558c0605bb12fd3ace3893978528a0d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:21:00.998495Z","signature_b64":"gRHAV/PQatsCVDM07mNtjanXlp1pXIESX5HhFheZInwb7/SFqEE6Qf/dHVv1IM+ZQfHXdlgi7fzZXasHtQayDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e4d14f6b85b036bc3a714f74580c0a022558c0605bb12fd3ace3893978528a0d","last_reissued_at":"2026-07-05T00:21:00.998096Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:21:00.998096Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1911.09502","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":"2026-07-05T00:21:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lv85bYOKa4Ss+DDuMBZ9dGDMOvPr5lvvD9iCpDOvYdhmmcOkoTzkZrr5cVYdVWl7UiC9Y/fVcbFxeUIpTQDnCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T23:14:09.091667Z"},"content_sha256":"ebcaed85764e99d8f2797d96a67d1c58b001f2a6196fbdcf7eea2d3ea2d1f1fb","schema_version":"1.0","event_id":"sha256:ebcaed85764e99d8f2797d96a67d1c58b001f2a6196fbdcf7eea2d3ea2d1f1fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:4TIU624FWA3LYOTRJ52FQDAKAI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum potential and wave packet spreading","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.gen-ph","authors_text":"Hristu Culetu","submitted_at":"2019-11-10T19:32:11Z","abstract_excerpt":"The effects of the de Broglie-Bohm quantum potential on a test particle of mass $m$ are investigated in a conformally-flat geometry. A real, nonlinear, scalar field $\\Psi$ is introduced and related directly to the conformal factor and to the effective mass $M(r,t)$ of the particle. The radial acceleration of a static observer in the conformally-flat metric is negative (the field is repulsive), and the corresponding proper acceleration resembles that one of the \"peak radius\" where the radial probability density has a global maximum during the wave packet spreading phenomenon. The timelike radia"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.09502","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/1911.09502/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":"2026-07-05T00:21:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CdLkjvjlMyW+05h4h4P4vJFGw0hAUZqgJWeIqVKd17KUzrSxUb/leUasl/W1phwFtEF9qlZQTgFD22m0cTp+BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T23:14:09.092620Z"},"content_sha256":"37377f949e9e935b06e175e9dc736a5313188b0fe4d7e50504872df74cc4571e","schema_version":"1.0","event_id":"sha256:37377f949e9e935b06e175e9dc736a5313188b0fe4d7e50504872df74cc4571e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4TIU624FWA3LYOTRJ52FQDAKAI/bundle.json","state_url":"https://pith.science/pith/4TIU624FWA3LYOTRJ52FQDAKAI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4TIU624FWA3LYOTRJ52FQDAKAI/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":"2026-08-15T23:14:09Z","links":{"resolver":"https://pith.science/pith/4TIU624FWA3LYOTRJ52FQDAKAI","bundle":"https://pith.science/pith/4TIU624FWA3LYOTRJ52FQDAKAI/bundle.json","state":"https://pith.science/pith/4TIU624FWA3LYOTRJ52FQDAKAI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4TIU624FWA3LYOTRJ52FQDAKAI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:4TIU624FWA3LYOTRJ52FQDAKAI","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":"73c60837aee23c2571b7130de16d4673bd816835b2ddf5dfb5ddd2d87abcac04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2019-11-10T19:32:11Z","title_canon_sha256":"8a66f9c8c168d5412cab05685d0c1f1d84562469d92f1037b5908045e113119b"},"schema_version":"1.0","source":{"id":"1911.09502","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.09502","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"arxiv_version","alias_value":"1911.09502v1","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.09502","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"pith_short_12","alias_value":"4TIU624FWA3L","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"pith_short_16","alias_value":"4TIU624FWA3LYOTR","created_at":"2026-07-05T00:21:00Z"},{"alias_kind":"pith_short_8","alias_value":"4TIU624F","created_at":"2026-07-05T00:21:00Z"}],"graph_snapshots":[{"event_id":"sha256:37377f949e9e935b06e175e9dc736a5313188b0fe4d7e50504872df74cc4571e","target":"graph","created_at":"2026-07-05T00:21:00Z","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/1911.09502/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The effects of the de Broglie-Bohm quantum potential on a test particle of mass $m$ are investigated in a conformally-flat geometry. A real, nonlinear, scalar field $\\Psi$ is introduced and related directly to the conformal factor and to the effective mass $M(r,t)$ of the particle. The radial acceleration of a static observer in the conformally-flat metric is negative (the field is repulsive), and the corresponding proper acceleration resembles that one of the \"peak radius\" where the radial probability density has a global maximum during the wave packet spreading phenomenon. The timelike radia","authors_text":"Hristu Culetu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2019-11-10T19:32:11Z","title":"Quantum potential and wave packet spreading"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.09502","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:ebcaed85764e99d8f2797d96a67d1c58b001f2a6196fbdcf7eea2d3ea2d1f1fb","target":"record","created_at":"2026-07-05T00:21:00Z","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":"73c60837aee23c2571b7130de16d4673bd816835b2ddf5dfb5ddd2d87abcac04","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.gen-ph","submitted_at":"2019-11-10T19:32:11Z","title_canon_sha256":"8a66f9c8c168d5412cab05685d0c1f1d84562469d92f1037b5908045e113119b"},"schema_version":"1.0","source":{"id":"1911.09502","kind":"arxiv","version":1}},"canonical_sha256":"e4d14f6b85b036bc3a714f74580c0a022558c0605bb12fd3ace3893978528a0d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4d14f6b85b036bc3a714f74580c0a022558c0605bb12fd3ace3893978528a0d","first_computed_at":"2026-07-05T00:21:00.998096Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:21:00.998096Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gRHAV/PQatsCVDM07mNtjanXlp1pXIESX5HhFheZInwb7/SFqEE6Qf/dHVv1IM+ZQfHXdlgi7fzZXasHtQayDA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:21:00.998495Z","signed_message":"canonical_sha256_bytes"},"source_id":"1911.09502","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ebcaed85764e99d8f2797d96a67d1c58b001f2a6196fbdcf7eea2d3ea2d1f1fb","sha256:37377f949e9e935b06e175e9dc736a5313188b0fe4d7e50504872df74cc4571e"],"state_sha256":"b6aa5625389e016611107bc6455ec59e5b012ae9b5d34f2142e3d2693b3bf1c3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F3xdJHtPamFVzJqFaHXEnHF9Yb7hFO09kBdiOtooF1ouyxAF8bjkJhGFD9NwVHzg0w9jE09PIaDjjYZnj2HfCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T23:14:09.098542Z","bundle_sha256":"e89919b471a35e7c1341ddddc0a49513f4f2f0d0c0111b6f9b5baf9d587168fd"}}