Pith Number

pith:LAQN3GVX

pith:2015:LAQN3GVXZC7AYYIWWNK6TW3FAW

not attested not anchored not stored refs pending

Uniqueness of BP<n>

John A. Lind, Vigleik Angeltveit

arxiv:1501.01448 v1 · 2015-01-07 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LAQN3GVXZC7AYYIWWNK6TW3FAW}

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	2026-05-18T02:29:54.206328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5820dd9ab7c8be0c6116b355e9db6505851c8370ed90087e755a03c34507c5e6

Aliases

arxiv: 1501.01448 · arxiv_version: 1501.01448v1 · doi: 10.48550/arxiv.1501.01448 · pith_short_12: LAQN3GVXZC7A · pith_short_16: LAQN3GVXZC7AYYIW · pith_short_8: LAQN3GVX

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/LAQN3GVXZC7AYYIWWNK6TW3FAW \
  | 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: 5820dd9ab7c8be0c6116b355e9db6505851c8370ed90087e755a03c34507c5e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "618d1c1f5be49436964a315f36e0007b8aaeabde13746ee5e537313336ab7dff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2015-01-07T11:20:49Z",
    "title_canon_sha256": "d5b84f00614bba05ba63cc46129e5cfd60c71648e1fc24f26324cc62e53499f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01448",
    "kind": "arxiv",
    "version": 1
  }
}