Pith Number

pith:R2NX26RY

pith:2021:R2NX26RYFUIOL3X42EN3KADTPE

not attested not anchored not stored refs pending

Surfer100: Generating Surveys From Web Resources, Wikipedia-style

Alexander Fabbri, Chang Shen, Dragomir Radev, Irene Li, Jaesung Tae, Rina Kawamura, Sally Ma, Tomoe Mizutani, Xiangru Tang, Yixin Liu

arxiv:2112.06377 v4 · 2021-12-13 · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R2NX26RYFUIOL3X42EN3KADTPE}

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	2026-07-05T04:33:51.721805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e9b7d7a382d10e5eefcd11bb50073793e033cb12b1a9334bfc187c5bbd42494

Aliases

arxiv: 2112.06377 · arxiv_version: 2112.06377v4 · doi: 10.48550/arxiv.2112.06377 · pith_short_12: R2NX26RYFUIO · pith_short_16: R2NX26RYFUIOL3X4 · pith_short_8: R2NX26RY

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/R2NX26RYFUIOL3X42EN3KADTPE \
  | 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: 8e9b7d7a382d10e5eefcd11bb50073793e033cb12b1a9334bfc187c5bbd42494

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74f59afbdd15707dda8d0541132e35dd0c76fefc4e82cf737c243e7a937f76c2",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-12-13T02:18:01Z",
    "title_canon_sha256": "3e5bdde2dabdf5c5941a1afc200f04edbf6c23ace0fda63d7ac287d4673488bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.06377",
    "kind": "arxiv",
    "version": 4
  }
}