{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:DXFOKH5XO7O46HJBMM6HJI52UF","short_pith_number":"pith:DXFOKH5X","canonical_record":{"source":{"id":"1801.08036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-23T17:11:22Z","cross_cats_sorted":[],"title_canon_sha256":"d34f5b3392a58e4741c704d0829f8c8d08278c85efb73011853a5da337ef04aa","abstract_canon_sha256":"c16d9e8bac7b0dd0996f02e8aea4e6eed08c7efff1298dfb6a4d77906f9725d7"},"schema_version":"1.0"},"canonical_sha256":"1dcae51fb777ddcf1d21633c74a3baa1547f563d6db52a907dc4c65cc473397e","source":{"kind":"arxiv","id":"1801.08036","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.08036","created_at":"2026-05-18T00:25:08Z"},{"alias_kind":"arxiv_version","alias_value":"1801.08036v1","created_at":"2026-05-18T00:25:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.08036","created_at":"2026-05-18T00:25:08Z"},{"alias_kind":"pith_short_12","alias_value":"DXFOKH5XO7O4","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DXFOKH5XO7O46HJB","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DXFOKH5X","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:DXFOKH5XO7O46HJBMM6HJI52UF","target":"record","payload":{"canonical_record":{"source":{"id":"1801.08036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-23T17:11:22Z","cross_cats_sorted":[],"title_canon_sha256":"d34f5b3392a58e4741c704d0829f8c8d08278c85efb73011853a5da337ef04aa","abstract_canon_sha256":"c16d9e8bac7b0dd0996f02e8aea4e6eed08c7efff1298dfb6a4d77906f9725d7"},"schema_version":"1.0"},"canonical_sha256":"1dcae51fb777ddcf1d21633c74a3baa1547f563d6db52a907dc4c65cc473397e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:08.479469Z","signature_b64":"cBDcoHPqvAuNyVSqmkXhomuUPxUwA897i0CCHa2fC0+QKoC1/43XDaH68x6r9IOd/XKAzqXFnWoQeT6I/Pp1Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1dcae51fb777ddcf1d21633c74a3baa1547f563d6db52a907dc4c65cc473397e","last_reissued_at":"2026-05-18T00:25:08.478838Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:08.478838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.08036","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":"2026-05-18T00:25:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sJn2VnhqYZMvmEqSjxtGidvGbxuVM5eXCMmW9G85UzXYfBN+7C73+4fj5aWO+obE/CLN0Dy+92EXiKJjpfMwDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T06:44:39.358343Z"},"content_sha256":"eeb268ba064fae44ff2f816d99c48d98d65aba32e45e570a0b6cf15616253434","schema_version":"1.0","event_id":"sha256:eeb268ba064fae44ff2f816d99c48d98d65aba32e45e570a0b6cf15616253434"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:DXFOKH5XO7O46HJBMM6HJI52UF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The approach of the three interacting fluids applied to the cosmological constant problem","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"M\\'onica Forte","submitted_at":"2018-01-23T17:11:22Z","abstract_excerpt":"We present a cosmological model constituted by three perfect fluids, cold dark matter, vacuum energy and radiation, which interacting with each other lead to an equivalent model of three self-preserved fluids that can be identified with the $ \\Lambda$CDM model plus a warm dark matter component. The effective energy densities expressed in terms of the global density of energy, its derivatives and interactions, with parameters adjusted with the observational data allow to show the evolution of the vacuum energy. This supports the difference in 120 orders of magnitude of the so-called problem of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.08036","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":"2026-05-18T00:25:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IjuSGRkB8qviXIqoymcptaScfThCpbAUjp/2q3fygKwDSz3BJeMMxkCo6H4KynXxJ2NkDVMRTRTceK8u3lITBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T06:44:39.358689Z"},"content_sha256":"b6a3d71417fd1b7e6689a01283e532fc20ce8a0315ead79527bdb118160d4921","schema_version":"1.0","event_id":"sha256:b6a3d71417fd1b7e6689a01283e532fc20ce8a0315ead79527bdb118160d4921"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DXFOKH5XO7O46HJBMM6HJI52UF/bundle.json","state_url":"https://pith.science/pith/DXFOKH5XO7O46HJBMM6HJI52UF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DXFOKH5XO7O46HJBMM6HJI52UF/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":"2026-06-30T06:44:39Z","links":{"resolver":"https://pith.science/pith/DXFOKH5XO7O46HJBMM6HJI52UF","bundle":"https://pith.science/pith/DXFOKH5XO7O46HJBMM6HJI52UF/bundle.json","state":"https://pith.science/pith/DXFOKH5XO7O46HJBMM6HJI52UF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DXFOKH5XO7O46HJBMM6HJI52UF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DXFOKH5XO7O46HJBMM6HJI52UF","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":"c16d9e8bac7b0dd0996f02e8aea4e6eed08c7efff1298dfb6a4d77906f9725d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-23T17:11:22Z","title_canon_sha256":"d34f5b3392a58e4741c704d0829f8c8d08278c85efb73011853a5da337ef04aa"},"schema_version":"1.0","source":{"id":"1801.08036","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.08036","created_at":"2026-05-18T00:25:08Z"},{"alias_kind":"arxiv_version","alias_value":"1801.08036v1","created_at":"2026-05-18T00:25:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.08036","created_at":"2026-05-18T00:25:08Z"},{"alias_kind":"pith_short_12","alias_value":"DXFOKH5XO7O4","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DXFOKH5XO7O46HJB","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DXFOKH5X","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:b6a3d71417fd1b7e6689a01283e532fc20ce8a0315ead79527bdb118160d4921","target":"graph","created_at":"2026-05-18T00:25:08Z","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 present a cosmological model constituted by three perfect fluids, cold dark matter, vacuum energy and radiation, which interacting with each other lead to an equivalent model of three self-preserved fluids that can be identified with the $ \\Lambda$CDM model plus a warm dark matter component. The effective energy densities expressed in terms of the global density of energy, its derivatives and interactions, with parameters adjusted with the observational data allow to show the evolution of the vacuum energy. This supports the difference in 120 orders of magnitude of the so-called problem of ","authors_text":"M\\'onica Forte","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-23T17:11:22Z","title":"The approach of the three interacting fluids applied to the cosmological constant problem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.08036","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:eeb268ba064fae44ff2f816d99c48d98d65aba32e45e570a0b6cf15616253434","target":"record","created_at":"2026-05-18T00:25:08Z","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":"c16d9e8bac7b0dd0996f02e8aea4e6eed08c7efff1298dfb6a4d77906f9725d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-01-23T17:11:22Z","title_canon_sha256":"d34f5b3392a58e4741c704d0829f8c8d08278c85efb73011853a5da337ef04aa"},"schema_version":"1.0","source":{"id":"1801.08036","kind":"arxiv","version":1}},"canonical_sha256":"1dcae51fb777ddcf1d21633c74a3baa1547f563d6db52a907dc4c65cc473397e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1dcae51fb777ddcf1d21633c74a3baa1547f563d6db52a907dc4c65cc473397e","first_computed_at":"2026-05-18T00:25:08.478838Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:08.478838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cBDcoHPqvAuNyVSqmkXhomuUPxUwA897i0CCHa2fC0+QKoC1/43XDaH68x6r9IOd/XKAzqXFnWoQeT6I/Pp1Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:08.479469Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.08036","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eeb268ba064fae44ff2f816d99c48d98d65aba32e45e570a0b6cf15616253434","sha256:b6a3d71417fd1b7e6689a01283e532fc20ce8a0315ead79527bdb118160d4921"],"state_sha256":"8c38d4274e148c6255eb7d957d78ae43885e4fa1e475d0e2c6668b0cef951d11"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oGCZIGw34qfPDU/d0blJrVvIlGSGgXOhRilTvxHFn3WyIHIsN/fAEqMSnbov++0yKefSsEYea94gyv/Ycp8zDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T06:44:39.362016Z","bundle_sha256":"a9196b0ffd14217b62c04dd2e9d06255bad9974341cef8dcc8b36e3d926ca0dc"}}