Pith Number

pith:OBAKWF6E

pith:2018:OBAKWF6EJPNPWNX7BOZVZSSJ6Z

not attested not anchored not stored refs pending

Understanding and representing the semantics of large structured documents

Muhammad Mahbubur Rahman, Tim Finin

arxiv:1807.09842 v1 · 2018-07-24 · cs.CL · cs.IR · cs.LG · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OBAKWF6EJPNPWNX7BOZVZSSJ6Z}

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	2026-05-18T00:09:46.431640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7040ab17c44bdafb36ff0bb35cca49f67646f4235271c2b673d3021196542aae

Aliases

arxiv: 1807.09842 · arxiv_version: 1807.09842v1 · doi: 10.48550/arxiv.1807.09842 · pith_short_12: OBAKWF6EJPNP · pith_short_16: OBAKWF6EJPNPWNX7 · pith_short_8: OBAKWF6E

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/OBAKWF6EJPNPWNX7BOZVZSSJ6Z \
  | 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: 7040ab17c44bdafb36ff0bb35cca49f67646f4235271c2b673d3021196542aae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3172c6c0e180f0fed74105638b65afad57353224b6079e6e5daaf7645938ddfe",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-07-24T04:14:51Z",
    "title_canon_sha256": "97310e6c3a0a405112841ca12cada85db50f8ddc7e3ea6829295612c690644aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09842",
    "kind": "arxiv",
    "version": 1
  }
}