Pith Number

pith:XO4KCBZ3

pith:2019:XO4KCBZ3AD55KKJVON7ITWBDTZ

not attested not anchored not stored refs pending

What should I document? A preliminary systematic mapping study into API documentation knowledge

Alex Cummaudo, John Grundy, Rajesh Vasa

arxiv:1907.13260 v1 · 2019-07-30 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XO4KCBZ3AD55KKJVON7ITWBDTZ}

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	2026-07-04T23:50:48.180442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbb8a1073b00fbd52935737e89d8239e70a72d2bba1f7fc5ba67d179c52cb4d5

Aliases

arxiv: 1907.13260 · arxiv_version: 1907.13260v1 · doi: 10.48550/arxiv.1907.13260 · pith_short_12: XO4KCBZ3AD55 · pith_short_16: XO4KCBZ3AD55KKJV · pith_short_8: XO4KCBZ3

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/XO4KCBZ3AD55KKJVON7ITWBDTZ \
  | 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: bbb8a1073b00fbd52935737e89d8239e70a72d2bba1f7fc5ba67d179c52cb4d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e2517dd77a6439efa0368144238b78878f9b0eb7c3549e0eab810ada6d960ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-07-30T23:36:48Z",
    "title_canon_sha256": "8711f455e4c85450663940badc4331f836ff29db929d0ba6aff748769510a627"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.13260",
    "kind": "arxiv",
    "version": 1
  }
}