{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:2PDPIASHJHHNAWSVDNTU6VUR6X","short_pith_number":"pith:2PDPIASH","canonical_record":{"source":{"id":"1803.09767","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-03-26T18:00:43Z","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"title_canon_sha256":"7d1a351433e996ba1edc34ffdb7402332fd2874e5dbc87e6b7e3c560f32f42e3","abstract_canon_sha256":"3723ab7592d515b6a0399e5acff8c5e91d6d99af7ff18cd27b6c60c0a650d66a"},"schema_version":"1.0"},"canonical_sha256":"d3c6f4024749ced05a551b674f5691f5e43ca44e4460d36217453dcac004edb4","source":{"kind":"arxiv","id":"1803.09767","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.09767","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"arxiv_version","alias_value":"1803.09767v2","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.09767","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"pith_short_12","alias_value":"2PDPIASHJHHN","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2PDPIASHJHHNAWSV","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2PDPIASH","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:2PDPIASHJHHNAWSVDNTU6VUR6X","target":"record","payload":{"canonical_record":{"source":{"id":"1803.09767","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-03-26T18:00:43Z","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"title_canon_sha256":"7d1a351433e996ba1edc34ffdb7402332fd2874e5dbc87e6b7e3c560f32f42e3","abstract_canon_sha256":"3723ab7592d515b6a0399e5acff8c5e91d6d99af7ff18cd27b6c60c0a650d66a"},"schema_version":"1.0"},"canonical_sha256":"d3c6f4024749ced05a551b674f5691f5e43ca44e4460d36217453dcac004edb4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:18:30.818864Z","signature_b64":"CZ+gQZSYKboKQbCQ/LVV4hD78UU1DzvHpYnNdnvS3Nq932WSfyMnyyJB90onUzAKLX3nZJK8HxHNLojWSrlfCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3c6f4024749ced05a551b674f5691f5e43ca44e4460d36217453dcac004edb4","last_reissued_at":"2026-05-18T00:18:30.818483Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:18:30.818483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.09767","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":"2026-05-18T00:18:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2U5kEUqD7JvIwad5+QGFVqWEUuv88tV5kj67ffpaqkuoLR2UYpdGQaFa7+HgQLtera1SXgc8RW7XDrksXCY+BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:16:02.781696Z"},"content_sha256":"0e7a093ca186e4aa9f6a56666c0de70d9ca3dae958f5864766af27bd3c970fc9","schema_version":"1.0","event_id":"sha256:0e7a093ca186e4aa9f6a56666c0de70d9ca3dae958f5864766af27bd3c970fc9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:2PDPIASHJHHNAWSVDNTU6VUR6X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unifying Dark Matter and Dark Energy with non-Canonical Scalars","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":"Swagat S. Mishra, Varun Sahni","submitted_at":"2018-03-26T18:00:43Z","abstract_excerpt":"Non-canonical scalar fields with the Lagrangian ${\\cal L} = X^\\alpha - V(\\phi)$, possess the attractive property that the speed of sound, $c_s^{2} = (2\\,\\alpha - 1)^{-1}$, can be exceedingly small for large values of $\\alpha$. This allows a non-canonical field to cluster and behave like warm/cold dark matter on small scales. We demonstrate that simple potentials including $V = V_0\\coth^2{\\phi}$ and a Starobinsky-type potential can unify dark matter and dark energy. Cascading dark energy, in which the potential cascades to lower values in a series of discrete steps, can also work as a unified m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.09767","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":""},"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":"2026-05-18T00:18:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wIkLoMsfgqxEZsozTWcuf1zvuZdqbEc/svgTQwavWcE2bKPmOPlUYEMJW7t/iElPUWGIZsCboWKOgdoW9OQNBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:16:02.782364Z"},"content_sha256":"2380eeec5f6b21388605ec6298ac176731ede9a6c96a487655b247df71767297","schema_version":"1.0","event_id":"sha256:2380eeec5f6b21388605ec6298ac176731ede9a6c96a487655b247df71767297"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2PDPIASHJHHNAWSVDNTU6VUR6X/bundle.json","state_url":"https://pith.science/pith/2PDPIASHJHHNAWSVDNTU6VUR6X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2PDPIASHJHHNAWSVDNTU6VUR6X/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":"2026-05-30T02:16:02Z","links":{"resolver":"https://pith.science/pith/2PDPIASHJHHNAWSVDNTU6VUR6X","bundle":"https://pith.science/pith/2PDPIASHJHHNAWSVDNTU6VUR6X/bundle.json","state":"https://pith.science/pith/2PDPIASHJHHNAWSVDNTU6VUR6X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2PDPIASHJHHNAWSVDNTU6VUR6X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2PDPIASHJHHNAWSVDNTU6VUR6X","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":"3723ab7592d515b6a0399e5acff8c5e91d6d99af7ff18cd27b6c60c0a650d66a","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":"2018-03-26T18:00:43Z","title_canon_sha256":"7d1a351433e996ba1edc34ffdb7402332fd2874e5dbc87e6b7e3c560f32f42e3"},"schema_version":"1.0","source":{"id":"1803.09767","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.09767","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"arxiv_version","alias_value":"1803.09767v2","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.09767","created_at":"2026-05-18T00:18:30Z"},{"alias_kind":"pith_short_12","alias_value":"2PDPIASHJHHN","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2PDPIASHJHHNAWSV","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2PDPIASH","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:2380eeec5f6b21388605ec6298ac176731ede9a6c96a487655b247df71767297","target":"graph","created_at":"2026-05-18T00:18:30Z","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":"Non-canonical scalar fields with the Lagrangian ${\\cal L} = X^\\alpha - V(\\phi)$, possess the attractive property that the speed of sound, $c_s^{2} = (2\\,\\alpha - 1)^{-1}$, can be exceedingly small for large values of $\\alpha$. This allows a non-canonical field to cluster and behave like warm/cold dark matter on small scales. We demonstrate that simple potentials including $V = V_0\\coth^2{\\phi}$ and a Starobinsky-type potential can unify dark matter and dark energy. Cascading dark energy, in which the potential cascades to lower values in a series of discrete steps, can also work as a unified m","authors_text":"Swagat S. Mishra, Varun Sahni","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":"2018-03-26T18:00:43Z","title":"Unifying Dark Matter and Dark Energy with non-Canonical Scalars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.09767","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":"sha256:0e7a093ca186e4aa9f6a56666c0de70d9ca3dae958f5864766af27bd3c970fc9","target":"record","created_at":"2026-05-18T00:18:30Z","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":"3723ab7592d515b6a0399e5acff8c5e91d6d99af7ff18cd27b6c60c0a650d66a","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":"2018-03-26T18:00:43Z","title_canon_sha256":"7d1a351433e996ba1edc34ffdb7402332fd2874e5dbc87e6b7e3c560f32f42e3"},"schema_version":"1.0","source":{"id":"1803.09767","kind":"arxiv","version":2}},"canonical_sha256":"d3c6f4024749ced05a551b674f5691f5e43ca44e4460d36217453dcac004edb4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3c6f4024749ced05a551b674f5691f5e43ca44e4460d36217453dcac004edb4","first_computed_at":"2026-05-18T00:18:30.818483Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:30.818483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CZ+gQZSYKboKQbCQ/LVV4hD78UU1DzvHpYnNdnvS3Nq932WSfyMnyyJB90onUzAKLX3nZJK8HxHNLojWSrlfCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:30.818864Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.09767","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e7a093ca186e4aa9f6a56666c0de70d9ca3dae958f5864766af27bd3c970fc9","sha256:2380eeec5f6b21388605ec6298ac176731ede9a6c96a487655b247df71767297"],"state_sha256":"acb766002e4d45dafbd013f8900aae5d1bb490373ca14c525acebb9428749abb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i/gKJSntUUJLIx+5EW5sHVjc/nUXaeoyqc3vW8ZCSkZZoKffpY+JtT1BKIB/I84SKcEN9OMyWkWht+5JhKiLCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T02:16:02.786389Z","bundle_sha256":"0a437ad7ee39ab02a167f35a947bb178b940996d16695be1346513e17f09c65e"}}