Pith Number

pith:QSQTYD24

pith:2012:QSQTYD24FPQVW2DDUESKCXWZY2

not attested not anchored not stored refs pending

Itsy bitsy topological field theory

Daniel V. Mathews

arxiv:1201.4584 v2 · 2012-01-22 · math.SG · math-ph · math.GT · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSQTYD24FPQVW2DDUESKCXWZY2}

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	2026-05-18T00:19:04.921222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84a13c0f5c2be15b6863a124a15ed9c6916fba23ea459dd8b35b0404350c3a18

Aliases

arxiv: 1201.4584 · arxiv_version: 1201.4584v2 · doi: 10.48550/arxiv.1201.4584 · pith_short_12: QSQTYD24FPQV · pith_short_16: QSQTYD24FPQVW2DD · pith_short_8: QSQTYD24

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/QSQTYD24FPQVW2DDUESKCXWZY2 \
  | 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: 84a13c0f5c2be15b6863a124a15ed9c6916fba23ea459dd8b35b0404350c3a18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "967406bf0763309fe04da6d7232713914026c4d145dc9a49138662e34312729d",
    "cross_cats_sorted": [
      "math-ph",
      "math.GT",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2012-01-22T18:20:32Z",
    "title_canon_sha256": "d0a5c933a12c04dca3005b75fda650ae6a55844d77d807c8ee1a8671cfc0ca65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4584",
    "kind": "arxiv",
    "version": 2
  }
}