Pith Number

pith:64X5E4FN

pith:2016:64X5E4FNI5IWCDFIAES7327QWA

not attested not anchored not stored refs pending

Compact metrizable structures and classification problems

Christian Rosendal, Joseph Zielinski

arxiv:1610.00370 v1 · 2016-10-02 · 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{64X5E4FNI5IWCDFIAES7327QWA}

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	2026-05-18T01:03:25.652170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f72fd270ad4751610ca80125fdebf0b01c8ae067fd72e3317dce225b97f82353

Aliases

arxiv: 1610.00370 · arxiv_version: 1610.00370v1 · doi: 10.48550/arxiv.1610.00370 · pith_short_12: 64X5E4FNI5IW · pith_short_16: 64X5E4FNI5IWCDFI · pith_short_8: 64X5E4FN

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/64X5E4FNI5IWCDFIAES7327QWA \
  | 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: f72fd270ad4751610ca80125fdebf0b01c8ae067fd72e3317dce225b97f82353

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c72ccb2e106ba54b9b24d58b24739a9bf5b9843a56f73f92acd692f09b8a3c0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-10-02T23:49:08Z",
    "title_canon_sha256": "fbd91c7a7f466661eba616bf3a4e739ce74d899233a4b6f9bf1ffe22a6698bf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.00370",
    "kind": "arxiv",
    "version": 1
  }
}