Pith Number

pith:5J5NVYDS

pith:2010:5J5NVYDSGMMX3ZCHMVZQD5CXVS

not attested not anchored not stored refs pending

Scalar field models of dark energy with barotropic equation of state: properties and observational constraints from different datasets

B. Novosyadlyj, O. Sergijenko

arxiv:1012.1278 v1 · 2010-12-06 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5J5NVYDSGMMX3ZCHMVZQD5CXVS}

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	2026-05-18T04:34:01.640974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea7adae07233197de447657301f457acaf88d001c125da13849fb3c2cacc284d

Aliases

arxiv: 1012.1278 · arxiv_version: 1012.1278v1 · doi: 10.48550/arxiv.1012.1278 · pith_short_12: 5J5NVYDSGMMX · pith_short_16: 5J5NVYDSGMMX3ZCH · pith_short_8: 5J5NVYDS

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/5J5NVYDSGMMX3ZCHMVZQD5CXVS \
  | 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: ea7adae07233197de447657301f457acaf88d001c125da13849fb3c2cacc284d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94c8e5b019d4984308d625f68ba11817c12784bbf5221f9f5884428212587229",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-12-06T18:49:49Z",
    "title_canon_sha256": "7c6d7d66abfb635902a0bba91a23456ff07a865bb550389e727d49577e7f3c9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1278",
    "kind": "arxiv",
    "version": 1
  }
}