Pith Number

pith:XDH6TIM5

pith:2017:XDH6TIM5JPCAZQ23HPT3CSOUK7

not attested not anchored not stored refs pending

On the commutator subgroup of a right-angled Artin group

Taras Panov, Yakov Veryovkin

arxiv:1702.00446 v2 · 2017-02-01 · math.GR · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDH6TIM5JPCAZQ23HPT3CSOUK7}

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	2026-05-17T23:57:48.966100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8cfe9a19d4bc40cc35b3be7b149d457edf8eda9123ac0e679e99573b79d94ed

Aliases

arxiv: 1702.00446 · arxiv_version: 1702.00446v2 · doi: 10.48550/arxiv.1702.00446 · pith_short_12: XDH6TIM5JPCA · pith_short_16: XDH6TIM5JPCAZQ23 · pith_short_8: XDH6TIM5

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/XDH6TIM5JPCAZQ23HPT3CSOUK7 \
  | 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: b8cfe9a19d4bc40cc35b3be7b149d457edf8eda9123ac0e679e99573b79d94ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd6d820a7c5a8297693ccb8378363e6d6e6eceb0a8baf524b35ad50a1eb70a85",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2017-02-01T20:46:37Z",
    "title_canon_sha256": "6886502d748205707adc591f7cdf0267a3e3330086922dbd01a343d071a818a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00446",
    "kind": "arxiv",
    "version": 2
  }
}