Pith Number

pith:DGEOO6MR

pith:2016:DGEOO6MRISWXOTQKGIOPVVWFH3

not attested not anchored not stored refs pending

How Document Pre-processing affects Keyphrase Extraction Performance

Damien Cram, Florian Boudin, Hugo Mougard

arxiv:1610.07809 v1 · 2016-10-25 · 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{DGEOO6MRISWXOTQKGIOPVVWFH3}

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	2026-05-18T01:01:17.503301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1988e7799144ad774e0a321cfad6c53ee878d8307753c5b84da79b0caf936bd5

Aliases

arxiv: 1610.07809 · arxiv_version: 1610.07809v1 · doi: 10.48550/arxiv.1610.07809 · pith_short_12: DGEOO6MRISWX · pith_short_16: DGEOO6MRISWXOTQK · pith_short_8: DGEOO6MR

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/DGEOO6MRISWXOTQKGIOPVVWFH3 \
  | 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: 1988e7799144ad774e0a321cfad6c53ee878d8307753c5b84da79b0caf936bd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e730815b505bb5321fab5663f8399a5bd91a442011bc1400be88cdd7a6081e17",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-10-25T09:59:13Z",
    "title_canon_sha256": "fda13924fd1d6f123b599fc7fa967830f64ada7dc40548b823bf306794c86764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.07809",
    "kind": "arxiv",
    "version": 1
  }
}