Pith Number

pith:XJMCOP3Z

pith:2010:XJMCOP3ZYGHJTGDEF6HWTI4JWH

not attested not anchored not stored refs pending

Dark Matter: The evidence from astronomy, astrophysics and cosmology

Matts Roos

arxiv:1001.0316 v2 · 2010-01-04 · 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{XJMCOP3ZYGHJTGDEF6HWTI4JWH}

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	2026-05-18T04:39:16.717300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba58273f79c18e9998642f8f69a389b1f2a328b67a6b8ff39d39b6fb295b3221

Aliases

arxiv: 1001.0316 · arxiv_version: 1001.0316v2 · doi: 10.48550/arxiv.1001.0316 · pith_short_12: XJMCOP3ZYGHJ · pith_short_16: XJMCOP3ZYGHJTGDE · pith_short_8: XJMCOP3Z

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/XJMCOP3ZYGHJTGDEF6HWTI4JWH \
  | 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: ba58273f79c18e9998642f8f69a389b1f2a328b67a6b8ff39d39b6fb295b3221

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7708112ee34cf920f4cfd92c49293f32ac750d888b80c077b445bba02b87f5b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-01-04T16:22:04Z",
    "title_canon_sha256": "dc44788cf67e7d0a33479e0888dc3ee9d08786074b50539fd2120605614e8ca7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.0316",
    "kind": "arxiv",
    "version": 2
  }
}