Pith Number

pith:QHVE2YXK

pith:2016:QHVE2YXKNRF6QXBTH5IEY3TARP

not attested not anchored not stored refs pending

Building an Evaluation Scale using Item Response Theory

Hao Wu, Hong Yu, John P. Lalor

arxiv:1605.08889 v2 · 2016-05-28 · 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{QHVE2YXKNRF6QXBTH5IEY3TARP}

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	2026-05-18T01:04:01.120102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81ea4d62ea6c4be85c333f504c6e608bec112520b10bcf57dc9cb9a338b84cd6

Aliases

arxiv: 1605.08889 · arxiv_version: 1605.08889v2 · doi: 10.48550/arxiv.1605.08889 · pith_short_12: QHVE2YXKNRF6 · pith_short_16: QHVE2YXKNRF6QXBT · pith_short_8: QHVE2YXK

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/QHVE2YXKNRF6QXBTH5IEY3TARP \
  | 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: 81ea4d62ea6c4be85c333f504c6e608bec112520b10bcf57dc9cb9a338b84cd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3357d6ea0a4f4d63034b9b3b26b684f94217414398585453541a69f397adfbe5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-05-28T13:19:15Z",
    "title_canon_sha256": "1ae120da602ba98b9cdc3891ece88cda24d104c019f4248d196b4d92248385ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.08889",
    "kind": "arxiv",
    "version": 2
  }
}