Pith Number

pith:QH2QOV2K

pith:2013:QH2QOV2K5NUVX65XUTTOXPVRSD

not attested not anchored not stored refs pending

Constraints on a decomposed dark fluid with constant adiabatic sound speed by jointing the geometry test and growth rate after Planck data

Lixin Xu, Weiqiang Yang, Yabo Wu, Yuting Wang

arxiv:1312.2769 v3 · 2013-12-10 · 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{QH2QOV2K5NUVX65XUTTOXPVRSD}

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	2026-05-18T02:56:12.483481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81f507574aeb695bfbb7a4e6ebbeb190cb0b623c1910afeba375e11ca3e1ecfd

Aliases

arxiv: 1312.2769 · arxiv_version: 1312.2769v3 · doi: 10.48550/arxiv.1312.2769 · pith_short_12: QH2QOV2K5NUV · pith_short_16: QH2QOV2K5NUVX65X · pith_short_8: QH2QOV2K

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/QH2QOV2K5NUVX65XUTTOXPVRSD \
  | 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: 81f507574aeb695bfbb7a4e6ebbeb190cb0b623c1910afeba375e11ca3e1ecfd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bce7063f07ebdb48faffe24afb6e3237368700689b41fa81f624be6dac2be19b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-12-10T11:49:44Z",
    "title_canon_sha256": "1add9829b485c8af391e1ace11a0c82849f727d4c0781444cc7e5886a7e414dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2769",
    "kind": "arxiv",
    "version": 3
  }
}