Pith Number

pith:3XLCNF4O

pith:2018:3XLCNF4OBQJJCIZZPEJI3DSESQ

not attested not anchored not stored refs pending

Critical varieties and motivic equivalence for algebras with involution

Anne Qu\'eguiner-Mathieu, Charles De Clercq, Maksim Zhykhovich

arxiv:1802.03857 v1 · 2018-02-12 · 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{3XLCNF4OBQJJCIZZPEJI3DSESQ}

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	2026-05-18T00:23:50.217486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddd626978e0c1291233979128d8e449438429b66cff935c2f8f6bab2298b3db3

Aliases

arxiv: 1802.03857 · arxiv_version: 1802.03857v1 · doi: 10.48550/arxiv.1802.03857 · pith_short_12: 3XLCNF4OBQJJ · pith_short_16: 3XLCNF4OBQJJCIZZ · pith_short_8: 3XLCNF4O

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/3XLCNF4OBQJJCIZZPEJI3DSESQ \
  | 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: ddd626978e0c1291233979128d8e449438429b66cff935c2f8f6bab2298b3db3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bacd91b7cbf7c73b3c3a49bc7b88f98f1f821852d8af686f91d6d8f8934d160",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-02-12T01:26:53Z",
    "title_canon_sha256": "9dd1e7afc72db6f23593b5aecf4e1ddcd08c084f18942e3ef7734d210593eac3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.03857",
    "kind": "arxiv",
    "version": 1
  }
}