Pith Number

pith:OQUYLPCW

pith:2007:OQUYLPCWPQRPIMCS5PHDVL3BRS

not attested not anchored not stored refs pending

Classical Dark Matter

Mark J Hadley

arxiv:gr-qc/0701100 v1 · 2007-01-17 · 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{OQUYLPCWPQRPIMCS5PHDVL3BRS}

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	2026-07-04T14:58:47.328912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

742985bc567c22f43052ebce3aaf618c8ccb835c98f88f7301ee532b8bbfa52c

Aliases

arxiv: gr-qc/0701100 · arxiv_version: gr-qc/0701100v1 · doi: 10.48550/arxiv.gr-qc/0701100 · pith_short_12: OQUYLPCWPQRP · pith_short_16: OQUYLPCWPQRPIMCS · pith_short_8: OQUYLPCW

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/OQUYLPCWPQRPIMCS5PHDVL3BRS \
  | 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: 742985bc567c22f43052ebce3aaf618c8ccb835c98f88f7301ee532b8bbfa52c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb4ef3ebeb66163d4fa9064a7dced6b4767a27bc4339853c1a133c3c5544c97d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-01-17T17:26:36Z",
    "title_canon_sha256": "9896a4e0d38520fc14452c565062f09bb1a29f0fed91f433103d60417fffbddb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0701100",
    "kind": "arxiv",
    "version": 1
  }
}