Pith Number

pith:Z3KKVKBX

pith:2021:Z3KKVKBXL5TM7REF6PLH7LXTOX

not attested not anchored not stored refs pending

Deriving monadic quicksort (Declarative Pearl)

Shin-Cheng Mu, Tsung-Ju Chiang

arxiv:2101.11421 v1 · 2021-01-27 · cs.PL · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z3KKVKBXL5TM7REF6PLH7LXTOX}

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	2026-07-05T02:10:19.686486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ced4aaa8375f66cfc485f3d67faef375f0e49ca8c8fd4020a85adedd8940c485

Aliases

arxiv: 2101.11421 · arxiv_version: 2101.11421v1 · doi: 10.48550/arxiv.2101.11421 · pith_short_12: Z3KKVKBXL5TM · pith_short_16: Z3KKVKBXL5TM7REF · pith_short_8: Z3KKVKBX

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/Z3KKVKBXL5TM7REF6PLH7LXTOX \
  | 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: ced4aaa8375f66cfc485f3d67faef375f0e49ca8c8fd4020a85adedd8940c485

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8dea4f2dbc1d24383b06dfe45b2fa6bf51f133701842fe3ae912768f49934b06",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2021-01-27T14:15:46Z",
    "title_canon_sha256": "930f88f883b7c994acd625d455b78ccfa4108b218b84f5bedcdfed23828ca678"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.11421",
    "kind": "arxiv",
    "version": 1
  }
}