Pith Number

pith:FDDLXTCC

pith:2016:FDDLXTCCEZYJRFXVUHIYLCYSXD

not attested not anchored not stored refs pending

Witt vectors as a polynomial functor

D. Kaledin

arxiv:1602.04254 v3 · 2016-02-12 · math.AG · math.AT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDDLXTCCEZYJRFXVUHIYLCYSXD}

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	2026-05-18T00:33:02.529371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28c6bbcc4226709896f5a1d1858b12b8ff928fe29caf41ae643572669033c242

Aliases

arxiv: 1602.04254 · arxiv_version: 1602.04254v3 · doi: 10.48550/arxiv.1602.04254 · pith_short_12: FDDLXTCCEZYJ · pith_short_16: FDDLXTCCEZYJRFXV · pith_short_8: FDDLXTCC

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/FDDLXTCCEZYJRFXVUHIYLCYSXD \
  | 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: 28c6bbcc4226709896f5a1d1858b12b8ff928fe29caf41ae643572669033c242

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f974a41d22dd018c2dcbcb802cbfa70e844d470b0ebf771a4034bdc09d676a4",
    "cross_cats_sorted": [
      "math.AT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-02-12T22:32:20Z",
    "title_canon_sha256": "d03c3ca3999adcfddcc371d90b35b68abf48ce2ad0caac76782887e752baa95a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.04254",
    "kind": "arxiv",
    "version": 3
  }
}