Pith Number

pith:ZTA7GPL7

pith:2015:ZTA7GPL7VJCFWFQ3BPM7WU363B

not attested not anchored not stored refs pending

Determining solubility for finitely generated groups of PL homeomorphisms

Collin Bleak, Susan Hermiller, Tara Brough

arxiv:1507.06908 v2 · 2015-07-24 · 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{ZTA7GPL7VJCFWFQ3BPM7WU363B}

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	2026-05-18T01:14:25.958901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccc1f33d7faa445b161b0bd9fb537ed8625c31e5e1982d7b0ce05aa8024448d4

Aliases

arxiv: 1507.06908 · arxiv_version: 1507.06908v2 · doi: 10.48550/arxiv.1507.06908 · pith_short_12: ZTA7GPL7VJCF · pith_short_16: ZTA7GPL7VJCFWFQ3 · pith_short_8: ZTA7GPL7

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/ZTA7GPL7VJCFWFQ3BPM7WU363B \
  | 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: ccc1f33d7faa445b161b0bd9fb537ed8625c31e5e1982d7b0ce05aa8024448d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0165f5e7e44c43993a84fc67c08a9d2c7a49176b2e5b25d9057ec5b58d11eb26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2015-07-24T16:25:33Z",
    "title_canon_sha256": "e5f344d98c2c189b50cf92ebf41cfbeef7c5a484f2d0b8962e76f8df8977a22e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06908",
    "kind": "arxiv",
    "version": 2
  }
}