Pith Number

pith:PU6IG7CQ

pith:2016:PU6IG7CQLGPGCW2UD5BTNWZLVP

not attested not anchored not stored refs pending

Part-of-Speech Tagging for Historical English

Jacob Eisenstein, Yi Yang

arxiv:1603.03144 v2 · 2016-03-10 · cs.CL · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PU6IG7CQLGPGCW2UD5BTNWZLVP}

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	2026-05-18T01:17:49.995255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d3c837c50599e615b541f4336db2babdab3136f30bb48abe37676b298b022b3

Aliases

arxiv: 1603.03144 · arxiv_version: 1603.03144v2 · doi: 10.48550/arxiv.1603.03144 · pith_short_12: PU6IG7CQLGPG · pith_short_16: PU6IG7CQLGPGCW2U · pith_short_8: PU6IG7CQ

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/PU6IG7CQLGPGCW2UD5BTNWZLVP \
  | 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: 7d3c837c50599e615b541f4336db2babdab3136f30bb48abe37676b298b022b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bcf9a4c19c77449c0fc2d8699c278eeaae2613dbce5bc8efd3db3bb691d53ce",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-03-10T04:27:15Z",
    "title_canon_sha256": "b4405980b4cc122bc0b1fbee0f218b6b67630e1fd5cc16616a31c329c1ca7050"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.03144",
    "kind": "arxiv",
    "version": 2
  }
}