Pith Number

pith:63ILDLKU

pith:2014:63ILDLKUPHYA4JDJZB42M5SVCI

not attested not anchored not stored refs pending

The Arason invariant of orthogonal involutions of degree 12 and 8, and quaternionic subgroups of the Brauer group

Anne Qu\'eguiner-Mathieu, Jean-Pierre Tignol

arxiv:1406.7705 v2 · 2014-06-30 · 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{63ILDLKUPHYA4JDJZB42M5SVCI}

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	2026-05-18T02:27:51.093400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6d0b1ad5479f00e2469c879a67655122335e4bfbb359100bb73dcc944c4efae

Aliases

arxiv: 1406.7705 · arxiv_version: 1406.7705v2 · doi: 10.48550/arxiv.1406.7705 · pith_short_12: 63ILDLKUPHYA · pith_short_16: 63ILDLKUPHYA4JDJ · pith_short_8: 63ILDLKU

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/63ILDLKUPHYA4JDJZB42M5SVCI \
  | 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: f6d0b1ad5479f00e2469c879a67655122335e4bfbb359100bb73dcc944c4efae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af4bcc7438bb060246854bdb08019dc56663fe052c6a42c86feb063144eec8e7",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2014-06-30T12:48:16Z",
    "title_canon_sha256": "5b131a52becfc01d64262b525270f7ec99b16a11133e2898047d25b704f914d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7705",
    "kind": "arxiv",
    "version": 2
  }
}