Pith Number

pith:E26X5YK4

pith:2019:E26X5YK4GBBKJF3B6XACZNO67Z

not attested not anchored not stored refs pending

Automatic Evaluation of Local Topic Quality

Courtni Byun, Jeffrey Lund, Jordan Boyd-Graber, Kevin Seppi, Piper Armstrong, Stephen Cowley, Wilson Fearn

arxiv:1905.13126 v1 · 2019-05-18 · cs.IR · cs.CL · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E26X5YK4GBBKJF3B6XACZNO67Z}

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	2026-05-17T23:44:38.862555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26bd7ee15c3042a49761f5c02cb5defe6bdd337fe9dac1cb3ff903c688da4e56

Aliases

arxiv: 1905.13126 · arxiv_version: 1905.13126v1 · doi: 10.48550/arxiv.1905.13126 · pith_short_12: E26X5YK4GBBK · pith_short_16: E26X5YK4GBBKJF3B · pith_short_8: E26X5YK4

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/E26X5YK4GBBKJF3B6XACZNO67Z \
  | 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: 26bd7ee15c3042a49761f5c02cb5defe6bdd337fe9dac1cb3ff903c688da4e56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fd05e4536612a5480515560c91b2409bc39c4fa2dcedce31c4b3d637dd6d303",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-05-18T00:44:47Z",
    "title_canon_sha256": "443f2e549e9c2b5dd1dcae0325605ecb084d6f58b6f805bfcda3923b396f824c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.13126",
    "kind": "arxiv",
    "version": 1
  }
}