Pith Number

pith:4UJ3M5IJ

pith:2006:4UJ3M5IJM4OO7UASDGMPALVVXT

not attested not anchored not stored refs pending

The simultaneous conjugacy problem in groups of piecewise linear functions

Francesco Matucci, Martin Kassabov

arxiv:math/0607167 v3 · 2006-07-06 · 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{4UJ3M5IJM4OO7UASDGMPALVVXT}

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	2026-05-18T04:21:51.905194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e513b67509671cefd0121998f02eb5bcc439fe1f074350189f5801c6a307912a

Aliases

arxiv: math/0607167 · arxiv_version: math/0607167v3 · doi: 10.48550/arxiv.math/0607167 · pith_short_12: 4UJ3M5IJM4OO · pith_short_16: 4UJ3M5IJM4OO7UAS · pith_short_8: 4UJ3M5IJ

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/4UJ3M5IJM4OO7UASDGMPALVVXT \
  | 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: e513b67509671cefd0121998f02eb5bcc439fe1f074350189f5801c6a307912a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bae53cc74aa7a08ecc94abda51956f960929cd86ab27cfb992c4852be6e8b1dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2006-07-06T15:25:23Z",
    "title_canon_sha256": "c7439ae2233ce17edf0ec4e1c6962fbc851a62a53d9e0092bd42fcf382b1059c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0607167",
    "kind": "arxiv",
    "version": 3
  }
}