Pith Number

pith:YD2JDTCG

pith:2026:YD2JDTCGHNS7L2SZOSKMUJBPOZ

not attested not anchored not stored refs pending

Conjugacy Problem for Dehn Twists of Free Products of Free Abelian Groups

Amir Y. Weiss Behar, Bratati Som, Chris Karpinski

arxiv:2606.02558 v1 · 2026-06-01 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YD2JDTCGHNS7L2SZOSKMUJBPOZ}

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	2026-06-02T03:05:10.081297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0f491cc463b65f5ea597494ca242f767440fd4d6d84deade29ac6e1dcc3241b

Aliases

arxiv: 2606.02558 · arxiv_version: 2606.02558v1 · doi: 10.48550/arxiv.2606.02558 · pith_short_12: YD2JDTCGHNS7 · pith_short_16: YD2JDTCGHNS7L2SZ · pith_short_8: YD2JDTCG

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/YD2JDTCGHNS7L2SZOSKMUJBPOZ \
  | 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: c0f491cc463b65f5ea597494ca242f767440fd4d6d84deade29ac6e1dcc3241b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6668480fc22bb93d9e8ec2adf1ceab8ce1140862016883bc6b2b5afbae5e4d9e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2026-06-01T17:52:17Z",
    "title_canon_sha256": "91f85bd3f739bc510c1b1cb6389d3600f726c56a20adc7157f4b1bce804e317a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02558",
    "kind": "arxiv",
    "version": 1
  }
}