Pith Number

pith:JYM42OJU

pith:2025:JYM42OJUPI4LLRVRBALNCS7KMD

not attested not anchored not stored refs pending

The Diophantine problem in Thompson's group F

Alex Levine, Luna Elliott

arxiv:2502.14970 v3 · 2025-02-20 · 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{JYM42OJUPI4LLRVRBALNCS7KMD}

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	2026-06-23T01:12:45.035959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e19cd39347a38b5c6b10816d14bea60ddc66fe98143311c3527aa81fce9dba5

Aliases

arxiv: 2502.14970 · arxiv_version: 2502.14970v3 · doi: 10.48550/arxiv.2502.14970 · pith_short_12: JYM42OJUPI4L · pith_short_16: JYM42OJUPI4LLRVR · pith_short_8: JYM42OJU

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/JYM42OJUPI4LLRVRBALNCS7KMD \
  | 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: 4e19cd39347a38b5c6b10816d14bea60ddc66fe98143311c3527aa81fce9dba5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc33dd71ee0f056c646e509a645c59063f1bafc90f44256c4a7201297404eed1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2025-02-20T19:06:30Z",
    "title_canon_sha256": "7fd5fa31104afda8bfeb238b349b142e13fee55351c4508e4821911e9b1d5964"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.14970",
    "kind": "arxiv",
    "version": 3
  }
}