Pith Number

pith:DYM3OT72

pith:2009:DYM3OT725P6XL25X5X6M7ZUYYP

not attested not anchored not stored refs pending

Degeneracy of triality-symmetric morphisms

Dave Anderson

arxiv:0901.1347 v1 · 2009-01-10 · 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{DYM3OT725P6XL25X5X6M7ZUYYP}

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	2026-05-18T03:41:59.122470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e19b74ffaebfd75ebb7edfccfe698c3cfd237eb5d557c557be4ad75160e0de1

Aliases

arxiv: 0901.1347 · arxiv_version: 0901.1347v1 · doi: 10.48550/arxiv.0901.1347 · pith_short_12: DYM3OT725P6X · pith_short_16: DYM3OT725P6XL25X · pith_short_8: DYM3OT72

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/DYM3OT725P6XL25X5X6M7ZUYYP \
  | 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: 1e19b74ffaebfd75ebb7edfccfe698c3cfd237eb5d557c557be4ad75160e0de1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4899c6c319afa482ca20f27a6bb81e46fcd2578345c80082859b60221c7302c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-01-10T02:22:51Z",
    "title_canon_sha256": "359e41ecd79d0b1aa8505d650d907aedec48baa9490441b9d1a3a5bd61938101"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1347",
    "kind": "arxiv",
    "version": 1
  }
}