Pith Number

pith:UYFNVXUT

pith:2015:UYFNVXUT7Z6TSWDSMPOEY3HI6S

not attested not anchored not stored refs pending

It's a dark, dark world: Background evolution of interacting $\phi$CDM models beyond simple exponential potentials

Parminder Singh, Suprit Singh

arxiv:1507.01535 v2 · 2015-07-06 · astro-ph.CO · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UYFNVXUT7Z6TSWDSMPOEY3HI6S}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:15:32.499562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a60adade93fe7d39587263dc4c6ce8f4adf3f14a27fb62717738e2f7185b9195

Aliases

arxiv: 1507.01535 · arxiv_version: 1507.01535v2 · doi: 10.48550/arxiv.1507.01535 · pith_short_12: UYFNVXUT7Z6T · pith_short_16: UYFNVXUT7Z6TSWDS · pith_short_8: UYFNVXUT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UYFNVXUT7Z6TSWDSMPOEY3HI6S \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a60adade93fe7d39587263dc4c6ce8f4adf3f14a27fb62717738e2f7185b9195

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db72736e62e467494483eb12875cde79528716aa3e8b6907670b1699b7d18389",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-07-06T16:45:14Z",
    "title_canon_sha256": "13d4e64d103060b053b307bfbe38438ad2a9d97ebbcb190a61f5a409d7a3c1d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01535",
    "kind": "arxiv",
    "version": 2
  }
}