Pith Number

pith:ED5H6B4D

pith:2010:ED5H6B4DMF32EWKGWKWKSRK4UN

not attested not anchored not stored refs pending

Derandomization and Group Testing

Mahdi Cheraghchi

arxiv:1010.0433 v1 · 2010-10-03 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ED5H6B4DMF32EWKGWKWKSRK4UN}

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	2026-05-18T02:23:47.592832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20fa7f07836177a25946b2aca9455ca36a506b238d1bc10bfb85d7c74e12a8ba

Aliases

arxiv: 1010.0433 · arxiv_version: 1010.0433v1 · doi: 10.48550/arxiv.1010.0433 · pith_short_12: ED5H6B4DMF32 · pith_short_16: ED5H6B4DMF32EWKG · pith_short_8: ED5H6B4D

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/ED5H6B4DMF32EWKGWKWKSRK4UN \
  | 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: 20fa7f07836177a25946b2aca9455ca36a506b238d1bc10bfb85d7c74e12a8ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d1bab2931e5f47b75cba4d92c0901bb2e2d40a5ce8982ab014b277604b8abfc",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-10-03T19:29:55Z",
    "title_canon_sha256": "e96149a8795e79b6e463998e199e3d8a4e43a209de3c94e017744da321139662"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.0433",
    "kind": "arxiv",
    "version": 1
  }
}