Pith Number

pith:4MZARPZY

pith:2018:4MZARPZYJCSKPDANJSTSRZPRQR

not attested not anchored not stored refs pending

Semantic Relation Classification: Task Formalisation and Refinement

Andr\'e Freitas, Brian Davis, Manuela H\"urliman, Siegfried Handschuh, Vivian S. Silva

arxiv:1806.07721 v1 · 2018-06-20 · 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{4MZARPZYJCSKPDANJSTSRZPRQR}

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	2026-05-18T00:12:46.864149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e33208bf3848a4a78c0d4ca728e5f18449b1ac86fa183fe35b4214c53646fe42

Aliases

arxiv: 1806.07721 · arxiv_version: 1806.07721v1 · doi: 10.48550/arxiv.1806.07721 · pith_short_12: 4MZARPZYJCSK · pith_short_16: 4MZARPZYJCSKPDAN · pith_short_8: 4MZARPZY

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/4MZARPZYJCSKPDANJSTSRZPRQR \
  | 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: e33208bf3848a4a78c0d4ca728e5f18449b1ac86fa183fe35b4214c53646fe42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42ef738c423d79ec3ecf662247f9a5cab6417d1ca1f23a6cde9800aee22969a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-06-20T13:30:51Z",
    "title_canon_sha256": "68febbb3a27cdf12f9d71ba8162e7123477260677be424f49d5e1ea5800dab30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07721",
    "kind": "arxiv",
    "version": 1
  }
}