{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:MPJ6FUYCWULXM5AKDUS4HDACRE","short_pith_number":"pith:MPJ6FUYC","canonical_record":{"source":{"id":"1806.01473","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-06-05T03:01:25Z","cross_cats_sorted":[],"title_canon_sha256":"4b8c1a71ec02d5cbea04e947b70a6c7678e9ef330d73f165c00f15bb6850a93e","abstract_canon_sha256":"1bbb23fd671169dd0ac59a2f8b7f24925c385e9e14edcec3741f6c90b645007c"},"schema_version":"1.0"},"canonical_sha256":"63d3e2d302b51776740a1d25c38c02892d040a4503e1f2f902c0dbec35cedb25","source":{"kind":"arxiv","id":"1806.01473","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01473","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01473v3","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01473","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"pith_short_12","alias_value":"MPJ6FUYCWULX","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MPJ6FUYCWULXM5AK","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MPJ6FUYC","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:MPJ6FUYCWULXM5AKDUS4HDACRE","target":"record","payload":{"canonical_record":{"source":{"id":"1806.01473","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-06-05T03:01:25Z","cross_cats_sorted":[],"title_canon_sha256":"4b8c1a71ec02d5cbea04e947b70a6c7678e9ef330d73f165c00f15bb6850a93e","abstract_canon_sha256":"1bbb23fd671169dd0ac59a2f8b7f24925c385e9e14edcec3741f6c90b645007c"},"schema_version":"1.0"},"canonical_sha256":"63d3e2d302b51776740a1d25c38c02892d040a4503e1f2f902c0dbec35cedb25","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:30.866957Z","signature_b64":"vSqp0ty2YJZuRWNHzg8PZCHphn0657jWYDXvAuhd46mEylHGqPI7YQNQdwjJyuOrEI0PBZhsc/Kvx5NUj59LBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63d3e2d302b51776740a1d25c38c02892d040a4503e1f2f902c0dbec35cedb25","last_reissued_at":"2026-05-18T00:05:30.866535Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:30.866535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.01473","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":"2026-05-18T00:05:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P+269DR5/JjQT1VZOx6Eg4/PmgVVi+eCoo3okqM2dItQJYMlWQf75bL6+J2I5bTM0nxdDgyehpRmEW0jK0ZJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T14:03:40.187115Z"},"content_sha256":"d3a79df15ab52f3fa029975c8675950bd04f3ffe02185e32b8a5c45934a2873e","schema_version":"1.0","event_id":"sha256:d3a79df15ab52f3fa029975c8675950bd04f3ffe02185e32b8a5c45934a2873e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:MPJ6FUYCWULXM5AKDUS4HDACRE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vacuum Fluctuations and Boundary Conditions in a Global Monopole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"J. P. M. Pitelli, V. S. Barroso","submitted_at":"2018-06-05T03:01:25Z","abstract_excerpt":"We study the vacuum fluctuations of a massless scalar field $\\hat{\\Psi}$ on the background of a global monopole. Due to the nontrivial topology of the global monopole spacetime, characterized by a solid deficit angle parametrized by $\\eta^2$, we expect that $\\left<\\hat{\\Psi}^2\\right>_{\\text{ren}}$ and $\\left<\\hat{T}_{\\mu\\nu}\\right>_{\\text{ren}}$ are nonzero and proportional to $\\eta^2$, so that they annul in the Minkowski limit $\\eta\\to0$. However, due to the naked singularity at the monopole core, the evolution of the scalar field is not unique. In fact, they are in one to one correspondence "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01473","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":"2026-05-18T00:05:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n8lkvInUkIRFrdsnZAPA8piUFtZVPqvb6vUTkJCP/KnFPA96X/IlDkuHn5keqs63gzwNpBQZgyS7A2cZ4aDLCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T14:03:40.187485Z"},"content_sha256":"683964536374515de0dc108254581a3ea102b253029c710d9735b2ec06c78992","schema_version":"1.0","event_id":"sha256:683964536374515de0dc108254581a3ea102b253029c710d9735b2ec06c78992"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MPJ6FUYCWULXM5AKDUS4HDACRE/bundle.json","state_url":"https://pith.science/pith/MPJ6FUYCWULXM5AKDUS4HDACRE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MPJ6FUYCWULXM5AKDUS4HDACRE/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":"2026-05-27T14:03:40Z","links":{"resolver":"https://pith.science/pith/MPJ6FUYCWULXM5AKDUS4HDACRE","bundle":"https://pith.science/pith/MPJ6FUYCWULXM5AKDUS4HDACRE/bundle.json","state":"https://pith.science/pith/MPJ6FUYCWULXM5AKDUS4HDACRE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MPJ6FUYCWULXM5AKDUS4HDACRE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:MPJ6FUYCWULXM5AKDUS4HDACRE","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":"1bbb23fd671169dd0ac59a2f8b7f24925c385e9e14edcec3741f6c90b645007c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-06-05T03:01:25Z","title_canon_sha256":"4b8c1a71ec02d5cbea04e947b70a6c7678e9ef330d73f165c00f15bb6850a93e"},"schema_version":"1.0","source":{"id":"1806.01473","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.01473","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"arxiv_version","alias_value":"1806.01473v3","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.01473","created_at":"2026-05-18T00:05:30Z"},{"alias_kind":"pith_short_12","alias_value":"MPJ6FUYCWULX","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"MPJ6FUYCWULXM5AK","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"MPJ6FUYC","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:683964536374515de0dc108254581a3ea102b253029c710d9735b2ec06c78992","target":"graph","created_at":"2026-05-18T00:05:30Z","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":"We study the vacuum fluctuations of a massless scalar field $\\hat{\\Psi}$ on the background of a global monopole. Due to the nontrivial topology of the global monopole spacetime, characterized by a solid deficit angle parametrized by $\\eta^2$, we expect that $\\left<\\hat{\\Psi}^2\\right>_{\\text{ren}}$ and $\\left<\\hat{T}_{\\mu\\nu}\\right>_{\\text{ren}}$ are nonzero and proportional to $\\eta^2$, so that they annul in the Minkowski limit $\\eta\\to0$. However, due to the naked singularity at the monopole core, the evolution of the scalar field is not unique. In fact, they are in one to one correspondence ","authors_text":"J. P. M. Pitelli, V. S. Barroso","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-06-05T03:01:25Z","title":"Vacuum Fluctuations and Boundary Conditions in a Global Monopole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01473","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:d3a79df15ab52f3fa029975c8675950bd04f3ffe02185e32b8a5c45934a2873e","target":"record","created_at":"2026-05-18T00:05:30Z","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":"1bbb23fd671169dd0ac59a2f8b7f24925c385e9e14edcec3741f6c90b645007c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-06-05T03:01:25Z","title_canon_sha256":"4b8c1a71ec02d5cbea04e947b70a6c7678e9ef330d73f165c00f15bb6850a93e"},"schema_version":"1.0","source":{"id":"1806.01473","kind":"arxiv","version":3}},"canonical_sha256":"63d3e2d302b51776740a1d25c38c02892d040a4503e1f2f902c0dbec35cedb25","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63d3e2d302b51776740a1d25c38c02892d040a4503e1f2f902c0dbec35cedb25","first_computed_at":"2026-05-18T00:05:30.866535Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:30.866535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vSqp0ty2YJZuRWNHzg8PZCHphn0657jWYDXvAuhd46mEylHGqPI7YQNQdwjJyuOrEI0PBZhsc/Kvx5NUj59LBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:30.866957Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.01473","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3a79df15ab52f3fa029975c8675950bd04f3ffe02185e32b8a5c45934a2873e","sha256:683964536374515de0dc108254581a3ea102b253029c710d9735b2ec06c78992"],"state_sha256":"9a2200ac022ee7259b157599470ee22a2cb26d0237bcd7b80090b7b44876063c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fEABWg+1CLA57+cYdtbwGdZdxOErn2EYPvbRHEvUxeRAB4Pkos8STzMfc8e8NfR6V6cQq+MbZoVRgiNU17faAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T14:03:40.189912Z","bundle_sha256":"13b4d279bf7cb30b85697a7b1b3e5854eac4c9c5bbf05d0196064972088bab05"}}