Pith Number

pith:MB526TWQ

pith:2009:MB526TWQVKA4YSXL4WHMV3Y2CR

not attested not anchored not stored refs pending

Colorful Strips

G. Aloupis, J. Cardinal, M. Korman, O. Schwartz, P. Taslakian, S. Collette, S. Imahori, S. Langerman, S. Smorodinsky

arxiv:0904.2115 v2 · 2009-04-14 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MB526TWQVKA4YSXL4WHMV3Y2CR}

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	2026-05-18T04:24:53.315340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

607baf4ed0aa81cc4aebe58ecaef1a146804a6b9db86c5ff882fdf8c6ef98e95

Aliases

arxiv: 0904.2115 · arxiv_version: 0904.2115v2 · doi: 10.48550/arxiv.0904.2115 · pith_short_12: MB526TWQVKA4 · pith_short_16: MB526TWQVKA4YSXL · pith_short_8: MB526TWQ

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/MB526TWQVKA4YSXL4WHMV3Y2CR \
  | 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: 607baf4ed0aa81cc4aebe58ecaef1a146804a6b9db86c5ff882fdf8c6ef98e95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12d81e56e9e11c8c2c30a2a4bb6a1e5ee873f82b46e0757fe62f986741324e6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2009-04-14T13:00:41Z",
    "title_canon_sha256": "c20fef69b0e86383a624209735c108d80b743706a04f13601fe95b971341e41b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2115",
    "kind": "arxiv",
    "version": 2
  }
}