Pith Number

pith:NUI6GQOO

pith:2019:NUI6GQOOUU4LI3TGEV7623PZS3

not attested not anchored not stored refs pending

Generating Question-Answer Hierarchies

Kalpesh Krishna, Mohit Iyyer

arxiv:1906.02622 v2 · 2019-06-06 · 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{NUI6GQOOUU4LI3TGEV7623PZS3}

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	2026-05-17T23:40:03.358532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d11e341cea538b46e66257fed6df996d603a40011c1cb6b825101cd2634b46b

Aliases

arxiv: 1906.02622 · arxiv_version: 1906.02622v2 · doi: 10.48550/arxiv.1906.02622 · pith_short_12: NUI6GQOOUU4L · pith_short_16: NUI6GQOOUU4LI3TG · pith_short_8: NUI6GQOO

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/NUI6GQOOUU4LI3TGEV7623PZS3 \
  | 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: 6d11e341cea538b46e66257fed6df996d603a40011c1cb6b825101cd2634b46b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23840db1e41d9e70ed7735ba5d8a40399bddd5b027f2f997057930a8af0e2325",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-06-06T14:53:04Z",
    "title_canon_sha256": "4b3ee73c55bf16c7c0c21252005bab5176024d00bf5467aa527790c526ff3091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02622",
    "kind": "arxiv",
    "version": 2
  }
}