Pith Number

pith:22YSHMQ6

pith:2014:22YSHMQ66625CHFLXNPGETV6HR

not attested not anchored not stored refs pending

Borel structurability on the 2-shift of a countable group

Brandon Seward, Robin D. Tucker-Drob

arxiv:1402.4184 v1 · 2014-02-17 · math.DS · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{22YSHMQ66625CHFLXNPGETV6HR}

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	2026-05-18T02:58:44.601721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6b123b21ef7b5d11cabbb5e624ebe3c696628c41f28d053bc33646a0fa1c822

Aliases

arxiv: 1402.4184 · arxiv_version: 1402.4184v1 · doi: 10.48550/arxiv.1402.4184 · pith_short_12: 22YSHMQ66625 · pith_short_16: 22YSHMQ66625CHFL · pith_short_8: 22YSHMQ6

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/22YSHMQ66625CHFLXNPGETV6HR \
  | 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: d6b123b21ef7b5d11cabbb5e624ebe3c696628c41f28d053bc33646a0fa1c822

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23a7ea23f2efd44f03f1c5a89b9f50ed8c8c0760126f621e3ffe89ee948d243b",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-02-17T23:51:16Z",
    "title_canon_sha256": "e81e96451fa61843bfa053ccc6492128b39c8ab6e1287a31402eb2aa7d65c9d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4184",
    "kind": "arxiv",
    "version": 1
  }
}