Pith Number

pith:Y7XUVIK3

pith:2001:Y7XUVIK3BTB7TGOVRYXGKUWTWQ

not attested not anchored not stored refs pending

Digital Color Imaging

Gaurav Sharma, H. Joel Trussell

arxiv:cs/0109116 v1 · 2001-09-26 · cs.CV · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7XUVIK3BTB7TGOVRYXGKUWTWQ}

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	2026-05-18T01:39:25.196566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7ef4aa15b0cc3f999d58e2e6552d3b429fc56d37abc7d25aaa46fdb7ba0bb1e

Aliases

arxiv: cs/0109116 · arxiv_version: cs/0109116v1 · doi: 10.48550/arxiv.cs/0109116 · pith_short_12: Y7XUVIK3BTB7 · pith_short_16: Y7XUVIK3BTB7TGOV · pith_short_8: Y7XUVIK3

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/Y7XUVIK3BTB7TGOVRYXGKUWTWQ \
  | 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: c7ef4aa15b0cc3f999d58e2e6552d3b429fc56d37abc7d25aaa46fdb7ba0bb1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81ee43fdf3a8c0220d57a9875c0b10df58afd041b11ca73633564e1dedb285b4",
    "cross_cats_sorted": [
      "cs.GR"
    ],
    "license": "",
    "primary_cat": "cs.CV",
    "submitted_at": "2001-09-26T22:14:40Z",
    "title_canon_sha256": "21b912494877e254336ba452ff9ee83b821ceb3248c4150af7da092d13fd30d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0109116",
    "kind": "arxiv",
    "version": 1
  }
}