Pith Number

pith:QUPDT2QC

pith:2021:QUPDT2QCMNNMRYGZAAXELLDPL4

not attested not anchored not stored refs pending

A 1-dimensional formal group over the prismatization of Spf Z_p

Vladimir Drinfeld

arxiv:2107.11466 v5 · 2021-07-23 · math.AG · math.AT · math.KT · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QUPDT2QCMNNMRYGZAAXELLDPL4}

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.

Cited by

1 paper in Pith

On a complex topological orientation for circle-equivariant K-theory

Receipt and verification

First computed	2026-07-05T07:27:22.345729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

851e39ea02635ac8e0d9002e45ac6f5f06f12a4354ba2694a0c51f49790cbb96

Aliases

arxiv: 2107.11466 · arxiv_version: 2107.11466v5 · doi: 10.48550/arxiv.2107.11466 · pith_short_12: QUPDT2QCMNNM · pith_short_16: QUPDT2QCMNNMRYGZ · pith_short_8: QUPDT2QC

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/QUPDT2QCMNNMRYGZAAXELLDPL4 \
  | 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: 851e39ea02635ac8e0d9002e45ac6f5f06f12a4354ba2694a0c51f49790cbb96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc3407aedde60416373725ee0bbac3064cd71d4c6e94e82f72807f061398457e",
    "cross_cats_sorted": [
      "math.AT",
      "math.KT",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2021-07-23T21:13:17Z",
    "title_canon_sha256": "d193480930e3d558fe8e3a718a845426682686bb95ecfe8a7cf6ecfea10a1c0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.11466",
    "kind": "arxiv",
    "version": 5
  }
}