Pith Number

pith:UI4YPGWT

pith:2011:UI4YPGWTT2YB2JNDLGNLW6RZOV

not attested not anchored not stored refs pending

Classes de cycles motiviques \'etales

Bruno Kahn (IMJ)

arxiv:1102.0375 v3 · 2011-02-02 · 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{UI4YPGWTT2YB2JNDLGNLW6RZOV}

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	2026-05-18T03:03:10.518509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a239879ad39eb01d25a3599abb7a397578487f05b952e75426271a17f2565845

Aliases

arxiv: 1102.0375 · arxiv_version: 1102.0375v3 · doi: 10.48550/arxiv.1102.0375 · pith_short_12: UI4YPGWTT2YB · pith_short_16: UI4YPGWTT2YB2JND · pith_short_8: UI4YPGWT

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/UI4YPGWTT2YB2JNDLGNLW6RZOV \
  | 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: a239879ad39eb01d25a3599abb7a397578487f05b952e75426271a17f2565845

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58fef8e73870cb4e4897a589441f858508c3bb5b5defb11e26efa4aa5628069b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-02-02T07:16:03Z",
    "title_canon_sha256": "a722cd77f14ba3565512588fff54d3c654b1b8eb66dc7ef380e871578438ded7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0375",
    "kind": "arxiv",
    "version": 3
  }
}