Pith Number

pith:NOAN6KSL

pith:2018:NOAN6KSLFLKME4JNXULNFHTHP5

not attested not anchored not stored refs pending

A Multilingual Information Extraction Pipeline for Investigative Journalism

Chris Biemann, Gregor Wiedemann, Seid Muhie Yimam

arxiv:1809.00221 v1 · 2018-09-01 · 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{NOAN6KSLFLKME4JNXULNFHTHP5}

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	2026-05-18T00:05:44.993814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b80df2a4b2ad4c2712dbd16d29e677f464b366c8bda1116da552b07377b75fa

Aliases

arxiv: 1809.00221 · arxiv_version: 1809.00221v1 · doi: 10.48550/arxiv.1809.00221 · pith_short_12: NOAN6KSLFLKM · pith_short_16: NOAN6KSLFLKME4JN · pith_short_8: NOAN6KSL

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/NOAN6KSLFLKME4JNXULNFHTHP5 \
  | 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: 6b80df2a4b2ad4c2712dbd16d29e677f464b366c8bda1116da552b07377b75fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e4a6072ac21838300045b1916debeb5e29fca50d740f705a4d6b9a752d2029b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-09-01T16:54:15Z",
    "title_canon_sha256": "3c4767a5a837309a4e100d7e05e09f9371a4495406487003906afb45d721ea54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00221",
    "kind": "arxiv",
    "version": 1
  }
}