Pith Number

pith:GUNUIUXK

pith:2017:GUNUIUXKXMUBWBM7LS32BCUGSF

not attested not anchored not stored refs pending

Testing isomorphism of graded algebras

E. A. O'Brien, James B. Wilson, Peter A. Brooksbank

arxiv:1708.08873 v2 · 2017-08-29 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GUNUIUXKXMUBWBM7LS32BCUGSF}

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	2026-05-17T23:47:08.830597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

351b4452eabb281b059f5cb7a08a8691773a62d2c013c986ce4c4660cfc1cf0e

Aliases

arxiv: 1708.08873 · arxiv_version: 1708.08873v2 · doi: 10.48550/arxiv.1708.08873 · pith_short_12: GUNUIUXKXMUB · pith_short_16: GUNUIUXKXMUBWBM7 · pith_short_8: GUNUIUXK

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/GUNUIUXKXMUBWBM7LS32BCUGSF \
  | 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: 351b4452eabb281b059f5cb7a08a8691773a62d2c013c986ce4c4660cfc1cf0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47b485f34720aed5ad0a57534020cbe5538398ccb9ff0c00595952733028ce2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2017-08-29T16:56:40Z",
    "title_canon_sha256": "7619ecc9b352d96e2147132dcca973bf25ab18e8001318862bbfe51738ff12a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.08873",
    "kind": "arxiv",
    "version": 2
  }
}