{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:R64RCH6ZNPFORZX62NG562ELRT","short_pith_number":"pith:R64RCH6Z","canonical_record":{"source":{"id":"1202.4895","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-02-22T12:54:00Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"9fde3bc46a5e034ddd1573441983d525fde9b9fd07c723f3c8c8eaff850d1a20","abstract_canon_sha256":"d5842699b2fd97a149422dd98f4b8e7af95ce5c68511736dc6ab0d27e47ecbdb"},"schema_version":"1.0"},"canonical_sha256":"8fb9111fd96bcae8e6fed34ddf688b8cfb9207b5e640e72af22449d107af7ce4","source":{"kind":"arxiv","id":"1202.4895","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.4895","created_at":"2026-05-18T04:01:37Z"},{"alias_kind":"arxiv_version","alias_value":"1202.4895v1","created_at":"2026-05-18T04:01:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4895","created_at":"2026-05-18T04:01:37Z"},{"alias_kind":"pith_short_12","alias_value":"R64RCH6ZNPFO","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"R64RCH6ZNPFORZX6","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"R64RCH6Z","created_at":"2026-05-18T12:27:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:R64RCH6ZNPFORZX62NG562ELRT","target":"record","payload":{"canonical_record":{"source":{"id":"1202.4895","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-02-22T12:54:00Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"9fde3bc46a5e034ddd1573441983d525fde9b9fd07c723f3c8c8eaff850d1a20","abstract_canon_sha256":"d5842699b2fd97a149422dd98f4b8e7af95ce5c68511736dc6ab0d27e47ecbdb"},"schema_version":"1.0"},"canonical_sha256":"8fb9111fd96bcae8e6fed34ddf688b8cfb9207b5e640e72af22449d107af7ce4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:01:37.557468Z","signature_b64":"sEkfaUs/pOunfbO1uls4c5sclfXmqd/GJfqEL9nQGCW29P6OzW8tuc/yMYTqK47I1QZ4oHclzJsdqCSVY50xDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8fb9111fd96bcae8e6fed34ddf688b8cfb9207b5e640e72af22449d107af7ce4","last_reissued_at":"2026-05-18T04:01:37.556723Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:01:37.556723Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.4895","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":"2026-05-18T04:01:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D6vwztI0AYVjV7+40AKceLIEEA6qtkmGMmN4XBHXTKl9AMty7SaTv9QRBEQPOKCferNEvzMXkpsd+uhraLHUBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:48:25.455863Z"},"content_sha256":"2b6e81b2fb2a13ad257ad4f19e4afcab48e1eb42bc7b5ba3a1c4234953d17b50","schema_version":"1.0","event_id":"sha256:2b6e81b2fb2a13ad257ad4f19e4afcab48e1eb42bc7b5ba3a1c4234953d17b50"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:R64RCH6ZNPFORZX62NG562ELRT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Darkon fluid - a model for the dark sector of the Universe?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc"],"primary_cat":"hep-th","authors_text":"Peter C. Stichel, Wojtek J. Zakrzewski","submitted_at":"2012-02-22T12:54:00Z","abstract_excerpt":"We introduce darkons as fluid particles of a Galilean massless self-gravitating fluid. This fluid exhibits anisotropic scaling with $z=5/3$. The minimal gravitational coupling dynamically generates a gravitational mass density of either sign. Hence such fluid may serve as a model for the dark sector of the Universe. Its cosmological solutions give a deceleration phase for the early Universe and an acceleration phase for the late Universe. Will the steady flow solutions lead to a confining potential and so a possible model for halos?"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4895","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":"2026-05-18T04:01:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gDpeoMlA2MRIhIT21MBxTqq8YNjSYubFrayWi4CcF1ojv4jiG+y26q/xhWv4xD/tBEhec4VMKQ5r2o6PCEGTDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:48:25.456212Z"},"content_sha256":"f386203f084853c4939abab2886b1257d6503e1f9f6ed4d6c68a869c7a1a5e81","schema_version":"1.0","event_id":"sha256:f386203f084853c4939abab2886b1257d6503e1f9f6ed4d6c68a869c7a1a5e81"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R64RCH6ZNPFORZX62NG562ELRT/bundle.json","state_url":"https://pith.science/pith/R64RCH6ZNPFORZX62NG562ELRT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R64RCH6ZNPFORZX62NG562ELRT/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":"2026-06-01T17:48:25Z","links":{"resolver":"https://pith.science/pith/R64RCH6ZNPFORZX62NG562ELRT","bundle":"https://pith.science/pith/R64RCH6ZNPFORZX62NG562ELRT/bundle.json","state":"https://pith.science/pith/R64RCH6ZNPFORZX62NG562ELRT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R64RCH6ZNPFORZX62NG562ELRT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:R64RCH6ZNPFORZX62NG562ELRT","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":"d5842699b2fd97a149422dd98f4b8e7af95ce5c68511736dc6ab0d27e47ecbdb","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-02-22T12:54:00Z","title_canon_sha256":"9fde3bc46a5e034ddd1573441983d525fde9b9fd07c723f3c8c8eaff850d1a20"},"schema_version":"1.0","source":{"id":"1202.4895","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.4895","created_at":"2026-05-18T04:01:37Z"},{"alias_kind":"arxiv_version","alias_value":"1202.4895v1","created_at":"2026-05-18T04:01:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4895","created_at":"2026-05-18T04:01:37Z"},{"alias_kind":"pith_short_12","alias_value":"R64RCH6ZNPFO","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"R64RCH6ZNPFORZX6","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"R64RCH6Z","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:f386203f084853c4939abab2886b1257d6503e1f9f6ed4d6c68a869c7a1a5e81","target":"graph","created_at":"2026-05-18T04:01:37Z","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 introduce darkons as fluid particles of a Galilean massless self-gravitating fluid. This fluid exhibits anisotropic scaling with $z=5/3$. The minimal gravitational coupling dynamically generates a gravitational mass density of either sign. Hence such fluid may serve as a model for the dark sector of the Universe. Its cosmological solutions give a deceleration phase for the early Universe and an acceleration phase for the late Universe. Will the steady flow solutions lead to a confining potential and so a possible model for halos?","authors_text":"Peter C. Stichel, Wojtek J. Zakrzewski","cross_cats":["astro-ph.CO","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-02-22T12:54:00Z","title":"Darkon fluid - a model for the dark sector of the Universe?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4895","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":"sha256:2b6e81b2fb2a13ad257ad4f19e4afcab48e1eb42bc7b5ba3a1c4234953d17b50","target":"record","created_at":"2026-05-18T04:01:37Z","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":"d5842699b2fd97a149422dd98f4b8e7af95ce5c68511736dc6ab0d27e47ecbdb","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2012-02-22T12:54:00Z","title_canon_sha256":"9fde3bc46a5e034ddd1573441983d525fde9b9fd07c723f3c8c8eaff850d1a20"},"schema_version":"1.0","source":{"id":"1202.4895","kind":"arxiv","version":1}},"canonical_sha256":"8fb9111fd96bcae8e6fed34ddf688b8cfb9207b5e640e72af22449d107af7ce4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8fb9111fd96bcae8e6fed34ddf688b8cfb9207b5e640e72af22449d107af7ce4","first_computed_at":"2026-05-18T04:01:37.556723Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:01:37.556723Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sEkfaUs/pOunfbO1uls4c5sclfXmqd/GJfqEL9nQGCW29P6OzW8tuc/yMYTqK47I1QZ4oHclzJsdqCSVY50xDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:01:37.557468Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.4895","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b6e81b2fb2a13ad257ad4f19e4afcab48e1eb42bc7b5ba3a1c4234953d17b50","sha256:f386203f084853c4939abab2886b1257d6503e1f9f6ed4d6c68a869c7a1a5e81"],"state_sha256":"e4d96a9c759777295e59462f75ff20370d095c668474f1acee42be6d4f4ac326"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pv8mw+CbLt7DX+wBpa4I92HxIV3PQ5MJEbBIheh2aaisjrVihAmeB1QBrsw81VMD2cbgSmyhhWTh1cBNBtivAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T17:48:25.458150Z","bundle_sha256":"6f4bf4f96f131f00239d4623ee067ba1811571ba7d3e7188180a6daa0d03e033"}}