Pith Number

pith:HGLTTS5Q

pith:2021:HGLTTS5QMIY4V6NCM3NINPOGZQ

not attested not anchored not stored refs pending

SF-QA: Simple and Fair Evaluation Library for Open-domain Question Answering

Kyusong Lee, Tiancheng Zhao, Xiaopeng Lu

arxiv:2101.01910 v2 · 2021-01-06 · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HGLTTS5QMIY4V6NCM3NINPOGZQ}

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	2026-07-05T02:42:03.400069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

399739cbb06231caf9a266da86bdc6cc11475fdb89efd4101d6a66bed91cefc5

Aliases

arxiv: 2101.01910 · arxiv_version: 2101.01910v2 · doi: 10.48550/arxiv.2101.01910 · pith_short_12: HGLTTS5QMIY4 · pith_short_16: HGLTTS5QMIY4V6NC · pith_short_8: HGLTTS5Q

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/HGLTTS5QMIY4V6NCM3NINPOGZQ \
  | 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: 399739cbb06231caf9a266da86bdc6cc11475fdb89efd4101d6a66bed91cefc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae3e4cabba0eee7680a99591a236688212cc3d10551b4c289f15dfddb443156c",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-01-06T08:02:41Z",
    "title_canon_sha256": "969d65ee7719bcb928c0d97ffbcd1284aee49adf5c3162535b9eb1909624c67b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.01910",
    "kind": "arxiv",
    "version": 2
  }
}