Pith Number

pith:WLFS5ETW

pith:2014:WLFS5ETWW4TCKTE4HFHOYWM4YI

not attested not anchored not stored refs pending

Semantic Unification A sheaf theoretic approach to natural language

Mehrnoosh Sadrzadeh, Samson Abramsky

arxiv:1403.3351 v1 · 2014-03-13 · 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{WLFS5ETWW4TCKTE4HFHOYWM4YI}

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	2026-05-18T02:56:21.679360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2cb2e9276b726254c9c394eec599cc215cb87660801013551764b7ded14085a

Aliases

arxiv: 1403.3351 · arxiv_version: 1403.3351v1 · doi: 10.48550/arxiv.1403.3351 · pith_short_12: WLFS5ETWW4TC · pith_short_16: WLFS5ETWW4TCKTE4 · pith_short_8: WLFS5ETW

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/WLFS5ETWW4TCKTE4HFHOYWM4YI \
  | 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: b2cb2e9276b726254c9c394eec599cc215cb87660801013551764b7ded14085a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19d9bf50e14b0c4172bfac4896b7d0496828f155d04b528a5759867273ef2d98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2014-03-13T18:20:10Z",
    "title_canon_sha256": "7a4ccd4f8bd27fdd43f84005f35d9eb4f3488eca16dc872ff67585bdb0c3dba2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3351",
    "kind": "arxiv",
    "version": 1
  }
}