{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:DIFG5OZOPI44O3KO3XE2NIQYWI","short_pith_number":"pith:DIFG5OZO","canonical_record":{"source":{"id":"2203.13757","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-03-25T16:36:38Z","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"title_canon_sha256":"2db469e60f934a3d89639055714700a0c91f51212c18832a38e1ed4ca99dd46d","abstract_canon_sha256":"10f32b41b151f60f379ef504271e23422d887d1499428f687882bf5fcf2cb38a"},"schema_version":"1.0"},"canonical_sha256":"1a0a6ebb2e7a39c76d4eddc9a6a218b2357c01c9d92114f92b62644db7bd0cab","source":{"kind":"arxiv","id":"2203.13757","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.13757","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"arxiv_version","alias_value":"2203.13757v2","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.13757","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"pith_short_12","alias_value":"DIFG5OZOPI44","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"pith_short_16","alias_value":"DIFG5OZOPI44O3KO","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"pith_short_8","alias_value":"DIFG5OZO","created_at":"2026-07-05T04:40:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:DIFG5OZOPI44O3KO3XE2NIQYWI","target":"record","payload":{"canonical_record":{"source":{"id":"2203.13757","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-03-25T16:36:38Z","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"title_canon_sha256":"2db469e60f934a3d89639055714700a0c91f51212c18832a38e1ed4ca99dd46d","abstract_canon_sha256":"10f32b41b151f60f379ef504271e23422d887d1499428f687882bf5fcf2cb38a"},"schema_version":"1.0"},"canonical_sha256":"1a0a6ebb2e7a39c76d4eddc9a6a218b2357c01c9d92114f92b62644db7bd0cab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:40:52.813116Z","signature_b64":"GrILLvN0H3hRKhRIN/+vr9ctekw88XXo+ZuxZUmXI2eXNV+DFTy+paq4zENtdO6V8O5JYVZjzjEpXoqRGA4HCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a0a6ebb2e7a39c76d4eddc9a6a218b2357c01c9d92114f92b62644db7bd0cab","last_reissued_at":"2026-07-05T04:40:52.812721Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:40:52.812721Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.13757","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":"2026-07-05T04:40:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WuKxHoefhjDWNqDKNNhJxzGHjtBdh9xPqrKvacaAihhs1QNH8ULFCIt/1OKJbHKOKxxPCEZkaM15Wt2xbi1XDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T01:12:02.437264Z"},"content_sha256":"c4fe84cea79d3b3ea2450846e3c752648b522a0a3eabb6e569a8c486d656bae0","schema_version":"1.0","event_id":"sha256:c4fe84cea79d3b3ea2450846e3c752648b522a0a3eabb6e569a8c486d656bae0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:DIFG5OZOPI44O3KO3XE2NIQYWI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Cosmological Constant Problem and Running Vacuum in the Expanding Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph","hep-th"],"primary_cat":"gr-qc","authors_text":"Joan Sola Peracaula","submitted_at":"2022-03-25T16:36:38Z","abstract_excerpt":"It is well-known that quantum field theory (QFT) induces a huge value of the cosmological constant, $\\Lambda$, which is outrageously inconsistent with cosmological observations. We review here some aspects of this fundamental theoretical conundrum (`the cosmological constant problem') and strongly argue in favor of the possibility that the cosmic vacuum density $\\rho_{\\rm vac}$ may be mildly evolving with the expansion rate $H$. Such a `running vacuum model' (RVM) proposal predicts an effective dynamical dark energy without postulating new ad hoc fields (quintessence and the like). Using the m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.13757","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2203.13757/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":"2026-07-05T04:40:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2nL5AWkX3EoQ0KSYrzwTO3NGF0P5MtwNduvbXkpBJOoS+zAetuQi3bWDF+WYYC8bcHQpAQs2v53/THMby0rZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T01:12:02.437859Z"},"content_sha256":"773c56094f70fd1d4cd42403139126df099e13b0e1f475eb5df6d749c94a46ff","schema_version":"1.0","event_id":"sha256:773c56094f70fd1d4cd42403139126df099e13b0e1f475eb5df6d749c94a46ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DIFG5OZOPI44O3KO3XE2NIQYWI/bundle.json","state_url":"https://pith.science/pith/DIFG5OZOPI44O3KO3XE2NIQYWI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DIFG5OZOPI44O3KO3XE2NIQYWI/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":"2026-08-08T01:12:02Z","links":{"resolver":"https://pith.science/pith/DIFG5OZOPI44O3KO3XE2NIQYWI","bundle":"https://pith.science/pith/DIFG5OZOPI44O3KO3XE2NIQYWI/bundle.json","state":"https://pith.science/pith/DIFG5OZOPI44O3KO3XE2NIQYWI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DIFG5OZOPI44O3KO3XE2NIQYWI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:DIFG5OZOPI44O3KO3XE2NIQYWI","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":"10f32b41b151f60f379ef504271e23422d887d1499428f687882bf5fcf2cb38a","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-03-25T16:36:38Z","title_canon_sha256":"2db469e60f934a3d89639055714700a0c91f51212c18832a38e1ed4ca99dd46d"},"schema_version":"1.0","source":{"id":"2203.13757","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.13757","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"arxiv_version","alias_value":"2203.13757v2","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.13757","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"pith_short_12","alias_value":"DIFG5OZOPI44","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"pith_short_16","alias_value":"DIFG5OZOPI44O3KO","created_at":"2026-07-05T04:40:52Z"},{"alias_kind":"pith_short_8","alias_value":"DIFG5OZO","created_at":"2026-07-05T04:40:52Z"}],"graph_snapshots":[{"event_id":"sha256:773c56094f70fd1d4cd42403139126df099e13b0e1f475eb5df6d749c94a46ff","target":"graph","created_at":"2026-07-05T04:40:52Z","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/2203.13757/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is well-known that quantum field theory (QFT) induces a huge value of the cosmological constant, $\\Lambda$, which is outrageously inconsistent with cosmological observations. We review here some aspects of this fundamental theoretical conundrum (`the cosmological constant problem') and strongly argue in favor of the possibility that the cosmic vacuum density $\\rho_{\\rm vac}$ may be mildly evolving with the expansion rate $H$. Such a `running vacuum model' (RVM) proposal predicts an effective dynamical dark energy without postulating new ad hoc fields (quintessence and the like). Using the m","authors_text":"Joan Sola Peracaula","cross_cats":["astro-ph.CO","hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-03-25T16:36:38Z","title":"The Cosmological Constant Problem and Running Vacuum in the Expanding Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.13757","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:c4fe84cea79d3b3ea2450846e3c752648b522a0a3eabb6e569a8c486d656bae0","target":"record","created_at":"2026-07-05T04:40:52Z","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":"10f32b41b151f60f379ef504271e23422d887d1499428f687882bf5fcf2cb38a","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2022-03-25T16:36:38Z","title_canon_sha256":"2db469e60f934a3d89639055714700a0c91f51212c18832a38e1ed4ca99dd46d"},"schema_version":"1.0","source":{"id":"2203.13757","kind":"arxiv","version":2}},"canonical_sha256":"1a0a6ebb2e7a39c76d4eddc9a6a218b2357c01c9d92114f92b62644db7bd0cab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a0a6ebb2e7a39c76d4eddc9a6a218b2357c01c9d92114f92b62644db7bd0cab","first_computed_at":"2026-07-05T04:40:52.812721Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:40:52.812721Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GrILLvN0H3hRKhRIN/+vr9ctekw88XXo+ZuxZUmXI2eXNV+DFTy+paq4zENtdO6V8O5JYVZjzjEpXoqRGA4HCA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:40:52.813116Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.13757","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c4fe84cea79d3b3ea2450846e3c752648b522a0a3eabb6e569a8c486d656bae0","sha256:773c56094f70fd1d4cd42403139126df099e13b0e1f475eb5df6d749c94a46ff"],"state_sha256":"f7976ea2470e75b90bdf6b12137c3c4b2bc1f8a1427cdb237f9282b104008441"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4QGANzOZSzx6wzOrhnd5sDtR1P5XjTV72GNw/mtRimxElCgwnTJHnlaD8Msa/TULQolN6rh2gJGZwHlhkDlPAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T01:12:02.442842Z","bundle_sha256":"a05ea0a43bde698992fd360d184d5c922bafc224eeaeaf761017848d7a9e5622"}}