Pith Number

pith:2WLAZD2P

pith:2018:2WLAZD2PM4726LDPVJLOPEFXXW

not attested not anchored not stored refs pending

Distinguishing Question Subjectivity from Difficulty for Improved Crowdsourcing

Mark Carman, Wray Buntine, Ye Zhu, Yuan Jin

arxiv:1802.04009 v2 · 2018-02-12 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2WLAZD2PM4726LDPVJLOPEFXXW}

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	2026-05-18T00:23:22.601023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5960c8f4f673faf2c6faa56e790b7bd87089f15dd79f5ff6d4a8d243f944a03

Aliases

arxiv: 1802.04009 · arxiv_version: 1802.04009v2 · doi: 10.48550/arxiv.1802.04009 · pith_short_12: 2WLAZD2PM472 · pith_short_16: 2WLAZD2PM4726LDP · pith_short_8: 2WLAZD2P

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/2WLAZD2PM4726LDPVJLOPEFXXW \
  | 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: d5960c8f4f673faf2c6faa56e790b7bd87089f15dd79f5ff6d4a8d243f944a03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f010e18ffa4a5e1699bb1a71b740cd1f1b945cb98369cc74a45ece960dca34a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-02-12T12:39:28Z",
    "title_canon_sha256": "3241e6c402d70ab274963ae80310739d290e31a6fb73147ff846645bfc8301ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04009",
    "kind": "arxiv",
    "version": 2
  }
}