Pith Number

pith:IMMLGCG4

pith:2021:IMMLGCG4BCUJKPUTJSOAWZFPAN

not attested not anchored not stored refs pending

A Search Engine for Discovery of Scientific Challenges and Directions

Bailey Kuehl, Daniel S. Weld, Dan Lahav, Diyi Yang, Duen Horng Chau, Eric Horvitz, Jon Saad Falcon, Noam Shomron, Sophie Johnson, Sravanthi Parasa, Tom Hope

arxiv:2108.13751 v3 · 2021-08-31 · cs.CL · cs.HC · 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{IMMLGCG4BCUJKPUTJSOAWZFPAN}

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	2026-07-05T03:49:55.023027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4318b308dc08a8953e934c9c0b64af03492b0d77e40e7b84055389949b8796fe

Aliases

arxiv: 2108.13751 · arxiv_version: 2108.13751v3 · doi: 10.48550/arxiv.2108.13751 · pith_short_12: IMMLGCG4BCUJ · pith_short_16: IMMLGCG4BCUJKPUT · pith_short_8: IMMLGCG4

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/IMMLGCG4BCUJKPUTJSOAWZFPAN \
  | 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: 4318b308dc08a8953e934c9c0b64af03492b0d77e40e7b84055389949b8796fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e74dd8acd05dd8f1ae5836ac3fc1f4ebe6924cfe56fb8ba6e187c1ccb0a3e5b0",
    "cross_cats_sorted": [
      "cs.HC",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-08-31T11:08:20Z",
    "title_canon_sha256": "d9ca619af7576a72a84ca976c96033c6b41f7bebc42c32022bb4e102ed5b8fc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.13751",
    "kind": "arxiv",
    "version": 3
  }
}