Pith Number

pith:IGH3CFB4

pith:2011:IGH3CFB4V7VKGT3S5HL3WHTZ5S

not attested not anchored not stored refs pending

A Universal Part-of-Speech Tagset

Dipanjan Das, Ryan McDonald, Slav Petrov

arxiv:1104.2086 v1 · 2011-04-11 · 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{IGH3CFB4V7VKGT3S5HL3WHTZ5S}

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.

Cited by

1 paper in Pith

Do Transformer Attention Heads Provide Transparency in Abstractive Summarization?

Receipt and verification

First computed	2026-05-18T02:22:09.839147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

418fb1143cafeaa34f72e9d7bb1e79eca20b378f83495e41d8beaaf493a38a6c

Aliases

arxiv: 1104.2086 · arxiv_version: 1104.2086v1 · doi: 10.48550/arxiv.1104.2086 · pith_short_12: IGH3CFB4V7VK · pith_short_16: IGH3CFB4V7VKGT3S · pith_short_8: IGH3CFB4

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/IGH3CFB4V7VKGT3S5HL3WHTZ5S \
  | 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: 418fb1143cafeaa34f72e9d7bb1e79eca20b378f83495e41d8beaaf493a38a6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1df5c009d802ecda9f720902855da2b5f5d30f13baa97730797db8c2ccaf7832",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2011-04-11T23:06:54Z",
    "title_canon_sha256": "cd31fb47cd666b40a04ddd1cbec4fc004d68400c9830893ddf0f29a4258f5c0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2086",
    "kind": "arxiv",
    "version": 1
  }
}