Pith Number

pith:B65B66BY

pith:2012:B65B66BYV2JIHL3643IJNHVBAW

not attested not anchored not stored refs pending

A (very short) introduction to buildings

Brent Everitt

arxiv:1207.2266 v3 · 2012-07-10 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B65B66BYV2JIHL3643IJNHVBAW}

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	2026-05-18T02:21:08.421944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fba1f7838ae9283af7ee6d0969ea105b57570da82315cb0442c865cb3cc8a9e

Aliases

arxiv: 1207.2266 · arxiv_version: 1207.2266v3 · doi: 10.48550/arxiv.1207.2266 · pith_short_12: B65B66BYV2JI · pith_short_16: B65B66BYV2JIHL36 · pith_short_8: B65B66BY

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/B65B66BYV2JIHL3643IJNHVBAW \
  | 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: 0fba1f7838ae9283af7ee6d0969ea105b57570da82315cb0442c865cb3cc8a9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f292ca0ed7ea9a6333e5405f3dfc57d609a0660ada476cb49ef9410a95696029",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2012-07-10T08:48:16Z",
    "title_canon_sha256": "8a980f335d3dd4b7193509200daf15fc991d09868a41e3cd8d68e5b3ffa759d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2266",
    "kind": "arxiv",
    "version": 3
  }
}