Pith Number

pith:P7UPI5TF

pith:2019:P7UPI5TFBEZFGI5KQJUXCKRGSW

not attested not anchored not stored refs pending

LMF Reloaded

CMB), Fahad Khan (CNR-ILC), Jack Bowers (ALMAnaCH), Laurent Romary (ALMAnaCH), Mandy Pet (ANSI), Mohamed Khemakhem (ALMAnaCH, Monte George (ANSI), Nicoletta Calzolari (CNR-ILC), Piotr Ba\'nski (IDS), UPD7

arxiv:1906.02136 v1 · 2019-05-23 · 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{P7UPI5TFBEZFGI5KQJUXCKRGSW}

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	2026-05-17T23:44:05.199156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fe8f4766509325323aa8269712a2695bcdb8919026ee86adc4328013a57952c

Aliases

arxiv: 1906.02136 · arxiv_version: 1906.02136v1 · doi: 10.48550/arxiv.1906.02136 · pith_short_12: P7UPI5TFBEZF · pith_short_16: P7UPI5TFBEZFGI5K · pith_short_8: P7UPI5TF

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/P7UPI5TFBEZFGI5KQJUXCKRGSW \
  | 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: 7fe8f4766509325323aa8269712a2695bcdb8919026ee86adc4328013a57952c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2055d788c92bcbc8c271f516668e5feb1d84d1aab2af9bffdcc82a5436af4b21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-05-23T14:48:39Z",
    "title_canon_sha256": "9778c22448e93289c5b73958947f71b1eaf8f2345b33c54f41c98a7146bf88eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02136",
    "kind": "arxiv",
    "version": 1
  }
}