Pith Number

pith:4OQZPD7U

pith:2018:4OQZPD7UEZSJ35RDAJHCM2V4ED

not attested not anchored not stored refs pending

Evaluating Scoped Meaning Representations

Hessel Haagsma, Johan Bos, Lasha Abzianidze, Rik van Noord

arxiv:1802.08599 v2 · 2018-02-23 · 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{4OQZPD7UEZSJ35RDAJHCM2V4ED}

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	2026-05-18T00:18:51.773426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3a1978ff426649df623024e266abc20d5d4861f272dc746120785cf049a6765

Aliases

arxiv: 1802.08599 · arxiv_version: 1802.08599v2 · doi: 10.48550/arxiv.1802.08599 · pith_short_12: 4OQZPD7UEZSJ · pith_short_16: 4OQZPD7UEZSJ35RD · pith_short_8: 4OQZPD7U

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/4OQZPD7UEZSJ35RDAJHCM2V4ED \
  | 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: e3a1978ff426649df623024e266abc20d5d4861f272dc746120785cf049a6765

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b22c4ec4cd4612bb83b5c7e61b88739d3d964333b455bdaf39634de51c3a218",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-02-23T15:31:19Z",
    "title_canon_sha256": "f62078a8d94b5de5cd8d0080643113fd74b3dbf76a1fdf98422367f22eb29fab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08599",
    "kind": "arxiv",
    "version": 2
  }
}