Pith Number

pith:BGCNPUHI

pith:2013:BGCNPUHIX47QZ5A2WTIVDFFI7I

not attested not anchored not stored refs pending

Viscous Modified Cosmic Chaplygin Gas Cosmology

Behnam Pourhassan

arxiv:1301.2788 v1 · 2013-01-13 · 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{BGCNPUHIX47QZ5A2WTIVDFFI7I}

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	2026-05-18T03:21:54.741632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0984d7d0e8bf3f0cf41ab4d15194a8fa2f138fdf143deaa0b1dc0659dbd692db

Aliases

arxiv: 1301.2788 · arxiv_version: 1301.2788v1 · doi: 10.48550/arxiv.1301.2788 · pith_short_12: BGCNPUHIX47Q · pith_short_16: BGCNPUHIX47QZ5A2 · pith_short_8: BGCNPUHI

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/BGCNPUHIX47QZ5A2WTIVDFFI7I \
  | 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: 0984d7d0e8bf3f0cf41ab4d15194a8fa2f138fdf143deaa0b1dc0659dbd692db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b202e3a8185595d1fd8fe3a36c6379517b66f2fa11983de8ab589cfaa1108c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-01-13T16:26:17Z",
    "title_canon_sha256": "b5499b6fc23a822ae789efa11446fde54ad0a67c6f04f1d2e54fe4477de908a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2788",
    "kind": "arxiv",
    "version": 1
  }
}