Pith Number

pith:FIWFZAX4

pith:2016:FIWFZAX4W6YVZJANENO362XEYP

not attested not anchored not stored refs pending

On the group of separable quadratic algebras and stacks

Ilia Pirashvili

arxiv:1604.02547 v2 · 2016-04-09 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FIWFZAX4W6YVZJANENO362XEYP}

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	2026-05-17T23:53:34.226512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a2c5c82fcb7b15ca40d235dbf6ae4c3f49d36e04d8805ba168afc23d83766be

Aliases

arxiv: 1604.02547 · arxiv_version: 1604.02547v2 · doi: 10.48550/arxiv.1604.02547 · pith_short_12: FIWFZAX4W6YV · pith_short_16: FIWFZAX4W6YVZJAN · pith_short_8: FIWFZAX4

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/FIWFZAX4W6YVZJANENO362XEYP \
  | 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: 2a2c5c82fcb7b15ca40d235dbf6ae4c3f49d36e04d8805ba168afc23d83766be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c819c0ed90542415a12a55c0548a55a50be968c515a2cdda3a7fb024947ba642",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-04-09T10:19:57Z",
    "title_canon_sha256": "46a9d1e3c73bb71532bbd534294af47eb122853c38f739620ff42c07a8cf6d21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02547",
    "kind": "arxiv",
    "version": 2
  }
}