Pith Number

pith:WWMTMPBY

pith:2018:WWMTMPBYHWUAF4R5EUOYJZTIAE

not attested not anchored not stored refs pending

Evaluating historical text normalization systems: How well do they generalize?

Alexander Robertson, Sharon Goldwater

arxiv:1804.02545 v2 · 2018-04-07 · 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{WWMTMPBYHWUAF4R5EUOYJZTIAE}

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	2026-05-18T00:18:35.463819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b599363c383da802f23d251d84e6680120d483d9e4aacf30fc3b95bb64c2110e

Aliases

arxiv: 1804.02545 · arxiv_version: 1804.02545v2 · doi: 10.48550/arxiv.1804.02545 · pith_short_12: WWMTMPBYHWUA · pith_short_16: WWMTMPBYHWUAF4R5 · pith_short_8: WWMTMPBY

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/WWMTMPBYHWUAF4R5EUOYJZTIAE \
  | 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: b599363c383da802f23d251d84e6680120d483d9e4aacf30fc3b95bb64c2110e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c850d751843b1b7f5d2a183ffac5f413c2fd5d75bce168bbc0f6a3bc56fdd17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-04-07T11:06:26Z",
    "title_canon_sha256": "f85a3e38b658852821c5c6e66e84bb0989fffdb8f8c93dbadba7b9ed3142e18d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02545",
    "kind": "arxiv",
    "version": 2
  }
}