Pith Number

pith:FGH55R6M

pith:2012:FGH55R6MCUXKMCLB7WCXYLZI5M

not attested not anchored not stored refs pending

Two Fold Branched Covers

Dave Auckly

arxiv:1212.6282 v2 · 2012-12-27 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FGH55R6MCUXKMCLB7WCXYLZI5M}

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	2026-05-18T02:56:03.977871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

298fdec7cc152ea60961fd857c2f28eb3ecdcdd19fbc5daf44a79e5b8cae5faf

Aliases

arxiv: 1212.6282 · arxiv_version: 1212.6282v2 · doi: 10.48550/arxiv.1212.6282 · pith_short_12: FGH55R6MCUXK · pith_short_16: FGH55R6MCUXKMCLB · pith_short_8: FGH55R6M

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/FGH55R6MCUXKMCLB7WCXYLZI5M \
  | 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: 298fdec7cc152ea60961fd857c2f28eb3ecdcdd19fbc5daf44a79e5b8cae5faf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a6ec3fc497d1f511219c48f777ebee3bb199d692d9e2dd46d69128d870d0737",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2012-12-27T00:23:43Z",
    "title_canon_sha256": "d39429b45692960002787d28cca4c715eda9fb13fc24455ce3651029622dfcec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.6282",
    "kind": "arxiv",
    "version": 2
  }
}