Pith Number

pith:5L2BJ6JV

pith:2018:5L2BJ6JVUFHJ5BDC2MONTT2IGC

not attested not anchored not stored refs pending

Rings with trivial FML-invariant

Daniel Daigle

arxiv:1806.10739 v1 · 2018-06-28 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5L2BJ6JVUFHJ5BDC2MONTT2IGC}

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	2026-05-18T00:12:08.105916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaf414f935a14e9e8462d31cd9cf48308f1e4370cce467a222ee6e393b8791f5

Aliases

arxiv: 1806.10739 · arxiv_version: 1806.10739v1 · doi: 10.48550/arxiv.1806.10739 · pith_short_12: 5L2BJ6JVUFHJ · pith_short_16: 5L2BJ6JVUFHJ5BDC · pith_short_8: 5L2BJ6JV

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/5L2BJ6JVUFHJ5BDC2MONTT2IGC \
  | 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: eaf414f935a14e9e8462d31cd9cf48308f1e4370cce467a222ee6e393b8791f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "494a442caf4e58e25d440bae6f50ad36042abe11dd7329ca6359bae74e84505f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-06-28T02:20:42Z",
    "title_canon_sha256": "19a54b673ec7e40bd51bd524cc89bc5cac49c1fe0e6c740a0e12f3758648aa42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10739",
    "kind": "arxiv",
    "version": 1
  }
}