Pith Number

pith:7UG7TT34

pith:2018:7UG7TT344IF4FSL2DM76CWOJ4S

not attested not anchored not stored refs pending

Learning to Recognize Discontiguous Entities

Aldrian Obaja Muis, Wei Lu

arxiv:1810.08579 v3 · 2018-10-19 · 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{7UG7TT344IF4FSL2DM76CWOJ4S}

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	2026-07-05T01:06:06.784234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd0df9cf7ce20bc2c97a1b3fe159c9e49acbc4d492ad74ad011e8683cdcd21fd

Aliases

arxiv: 1810.08579 · arxiv_version: 1810.08579v3 · doi: 10.48550/arxiv.1810.08579 · pith_short_12: 7UG7TT344IF4 · pith_short_16: 7UG7TT344IF4FSL2 · pith_short_8: 7UG7TT34

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/7UG7TT344IF4FSL2DM76CWOJ4S \
  | 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: fd0df9cf7ce20bc2c97a1b3fe159c9e49acbc4d492ad74ad011e8683cdcd21fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80816875fe684f793be38c4bb92bea0f23c497c22ccdd2f4db5a73b8aebcde6f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-10-19T16:48:25Z",
    "title_canon_sha256": "a87d50081c74055b1c3057027a86905d3cedc2aaa75aa661fff8317a9ddbf218"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.08579",
    "kind": "arxiv",
    "version": 3
  }
}