Pith Number

pith:WAYX7BDA

pith:2009:WAYX7BDATYTQOO2XSYQY6VIXJM

not attested not anchored not stored refs pending

A Realistic Cosmology Without Cold Dark Matter

Baojiu Li, Hongsheng Zhao

arxiv:0904.2935 v2 · 2009-04-20 · astro-ph.CO · astro-ph.HE · 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{WAYX7BDATYTQOO2XSYQY6VIXJM}

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	2026-05-18T03:51:59.034904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0317f84609e27073b5796218f55174b1ddaed693f4634b2097b01454d6f092a

Aliases

arxiv: 0904.2935 · arxiv_version: 0904.2935v2 · doi: 10.48550/arxiv.0904.2935 · pith_short_12: WAYX7BDATYTQ · pith_short_16: WAYX7BDATYTQOO2X · pith_short_8: WAYX7BDA

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/WAYX7BDATYTQOO2XSYQY6VIXJM \
  | 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: b0317f84609e27073b5796218f55174b1ddaed693f4634b2097b01454d6f092a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ae93bbd0f7a8ac89eabaaab6b8d30df7405daf55ecf4fa2dd20a29301511751",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-20T03:32:13Z",
    "title_canon_sha256": "fad3a7599a63571ef535f0d6edb65f9c156f380640d4bac7a1195b2650e067e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2935",
    "kind": "arxiv",
    "version": 2
  }
}