Pith Number

pith:2BQJ5XFU

pith:2021:2BQJ5XFULBZBLEYFAGVEFO3KP5

not attested not anchored not stored refs pending

Ontology-Enhanced Slot Filling

Yik-Cheung Tam, Yuhao Ding

arxiv:2108.11275 v1 · 2021-08-25 · 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{2BQJ5XFULBZBLEYFAGVEFO3KP5}

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	2026-07-05T03:08:51.314896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0609edcb4587215930501aa42bb6a7f448cd3761b864308e7e7d61e3f936b3e

Aliases

arxiv: 2108.11275 · arxiv_version: 2108.11275v1 · doi: 10.48550/arxiv.2108.11275 · pith_short_12: 2BQJ5XFULBZB · pith_short_16: 2BQJ5XFULBZBLEYF · pith_short_8: 2BQJ5XFU

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/2BQJ5XFULBZBLEYFAGVEFO3KP5 \
  | 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: d0609edcb4587215930501aa42bb6a7f448cd3761b864308e7e7d61e3f936b3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37fd87f4209c545ba3d90436069f44191a10bcd8ad65f283cf5b48f4af85c082",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-08-25T14:54:47Z",
    "title_canon_sha256": "f7f8ef4d7006d8baeb3151988e9a936b52f2a96c77310132a22df875a353462d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.11275",
    "kind": "arxiv",
    "version": 1
  }
}