Pith Number

pith:YHTA5MY6

pith:2007:YHTA5MY6QGAZMVMO2K2ML7LOFJ

not attested not anchored not stored refs pending

Deviation from $\Lambda$CDM: Pressure Parametrization

A.A. Sen

arxiv:0708.1072 v2 · 2007-08-08 · astro-ph · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YHTA5MY6QGAZMVMO2K2ML7LOFJ}

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	2026-07-04T15:24:33.698535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1e60eb31e818196558ed2b4c5fd6e2a45136ddd752ecc6cb39083cd262450e6

Aliases

arxiv: 0708.1072 · arxiv_version: 0708.1072v2 · doi: 10.48550/arxiv.0708.1072 · pith_short_12: YHTA5MY6QGAZ · pith_short_16: YHTA5MY6QGAZMVMO · pith_short_8: YHTA5MY6

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/YHTA5MY6QGAZMVMO2K2ML7LOFJ \
  | 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: c1e60eb31e818196558ed2b4c5fd6e2a45136ddd752ecc6cb39083cd262450e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "175a7023222ab1c82d89d0211431ef13ad862af1c89572d8b926db230b8c3d43",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-08-08T10:03:44Z",
    "title_canon_sha256": "20d9a0b901133452a60d7d36827e19dbee779d6aff0da5b4b959e56bc55c7aac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.1072",
    "kind": "arxiv",
    "version": 2
  }
}