Pith Number

pith:5DKYPOYV

pith:2021:5DKYPOYVOH4PVKT2VBIWNQZ7RA

not attested not anchored not stored refs pending

Open Domain Question Answering with A Unified Knowledge Interface

Eric Nyberg, Hao Cheng, Jianfeng Gao, Kaixin Ma, XiaoDong Liu

arxiv:2110.08417 v2 · 2021-10-16 · cs.CL · 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{5DKYPOYVOH4PVKT2VBIWNQZ7RA}

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	2026-07-05T04:06:30.234991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8d587bb1571f8faaa7aa85166c33f8808fadb8ecb9310106705554317aa70ff

Aliases

arxiv: 2110.08417 · arxiv_version: 2110.08417v2 · doi: 10.48550/arxiv.2110.08417 · pith_short_12: 5DKYPOYVOH4P · pith_short_16: 5DKYPOYVOH4PVKT2 · pith_short_8: 5DKYPOYV

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/5DKYPOYVOH4PVKT2VBIWNQZ7RA \
  | 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: e8d587bb1571f8faaa7aa85166c33f8808fadb8ecb9310106705554317aa70ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41966c37ee2e5dc7bd5c4d868d5ce911569805e3470a5734f7c6c3ae4638222a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-10-16T00:11:21Z",
    "title_canon_sha256": "cc3bd861b101b7f058e6e1e6a0a6c7f866156f7e3f7b0ba672cea28b114a703d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.08417",
    "kind": "arxiv",
    "version": 2
  }
}