Pith Number

pith:HGXCDALR

pith:2018:HGXCDALRH4EZIDTGE6QYBSQDJF

not attested not anchored not stored refs pending

Measuring Similarity: Computationally Reproducing the Scholar's Interests

Andras Zsom, Ashley Lee, Jo Guldi

arxiv:1812.05984 v1 · 2018-12-14 · 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{HGXCDALRH4EZIDTGE6QYBSQDJF}

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	2026-05-17T23:58:15.847452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39ae2181713f09940e6627a180ca03497051fe06cfdc8a972f127c1b49adc433

Aliases

arxiv: 1812.05984 · arxiv_version: 1812.05984v1 · doi: 10.48550/arxiv.1812.05984 · pith_short_12: HGXCDALRH4EZ · pith_short_16: HGXCDALRH4EZIDTG · pith_short_8: HGXCDALR

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/HGXCDALRH4EZIDTGE6QYBSQDJF \
  | 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: 39ae2181713f09940e6627a180ca03497051fe06cfdc8a972f127c1b49adc433

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b184e8691757d877f03a28b6010b3bdb57bf77d442edf1da25c031a3e54314c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-12-14T15:39:34Z",
    "title_canon_sha256": "9df906aa54746c2763f7ab0bbf4b44d07528609f2f3bd3cd2681197d631280bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05984",
    "kind": "arxiv",
    "version": 1
  }
}