Pith Number

pith:533CLD6S

pith:2017:533CLD6SXIAY53VSBGZFEHGLSB

not attested not anchored not stored refs pending

Topic modeling of public repositories at scale using names in source code

Eiso Kant, Vadim Markovtsev

arxiv:1704.00135 v2 · 2017-04-01 · cs.PL · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{533CLD6SXIAY53VSBGZFEHGLSB}

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	2026-05-18T00:44:08.715782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eef6258fd2ba018eeeb209b2521ccb905a9d82216cd471c33286b98fa4be834a

Aliases

arxiv: 1704.00135 · arxiv_version: 1704.00135v2 · doi: 10.48550/arxiv.1704.00135 · pith_short_12: 533CLD6SXIAY · pith_short_16: 533CLD6SXIAY53VS · pith_short_8: 533CLD6S

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/533CLD6SXIAY53VSBGZFEHGLSB \
  | 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: eef6258fd2ba018eeeb209b2521ccb905a9d82216cd471c33286b98fa4be834a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5764b9c0a8db0da0c8b4e9ad4c5a3d258ec9c1f79b1a6af56d699b833de4eec",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-04-01T08:16:20Z",
    "title_canon_sha256": "b551c4ef9d51e49242979193db00e716fb1845c492d47c0377b4f43c9fc635e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00135",
    "kind": "arxiv",
    "version": 2
  }
}