Pith Number

pith:YJHJRUZB

pith:2016:YJHJRUZBYAJQRUPW4DMWV5J2C6

not attested not anchored not stored refs pending

Stable actions and central extensions

Yoshikata Kida

arxiv:1604.04756 v2 · 2016-04-16 · math.DS · math.GR · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YJHJRUZBYAJQRUPW4DMWV5J2C6}

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	2026-05-18T00:44:19.862210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c24e98d321c01308d1f6e0d96af53a179cf6ae02418de25c9402e32c2c5a3374

Aliases

arxiv: 1604.04756 · arxiv_version: 1604.04756v2 · doi: 10.48550/arxiv.1604.04756 · pith_short_12: YJHJRUZBYAJQ · pith_short_16: YJHJRUZBYAJQRUPW · pith_short_8: YJHJRUZB

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/YJHJRUZBYAJQRUPW4DMWV5J2C6 \
  | 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: c24e98d321c01308d1f6e0d96af53a179cf6ae02418de25c9402e32c2c5a3374

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "176fc8f6f1fca623b8bb4042fb58b0732546cc6bc6d9d1ae884e9c02218265a7",
    "cross_cats_sorted": [
      "math.GR",
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2016-04-16T14:26:17Z",
    "title_canon_sha256": "123e2e01624a5d98229674df9e05960b56a55e45e1ebaac0038b48f33642febf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.04756",
    "kind": "arxiv",
    "version": 2
  }
}