Pith Number

pith:7TUAKHAA

pith:2017:7TUAKHAAHONFEZSCCEWED6UNJ4

not attested not anchored not stored refs pending

Iterates of $M_1$

Yizheng Zhu

arxiv:1705.10725 v3 · 2017-05-30 · 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{7TUAKHAAHONFEZSCCEWED6UNJ4}

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	2026-05-18T00:09:36.625775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fce8051c003b9a526642112c41fa8d4f18d51da7de0cc7af9685bfc76c346fd1

Aliases

arxiv: 1705.10725 · arxiv_version: 1705.10725v3 · doi: 10.48550/arxiv.1705.10725 · pith_short_12: 7TUAKHAAHONF · pith_short_16: 7TUAKHAAHONFEZSC · pith_short_8: 7TUAKHAA

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/7TUAKHAAHONFEZSCCEWED6UNJ4 \
  | 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: fce8051c003b9a526642112c41fa8d4f18d51da7de0cc7af9685bfc76c346fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63868413fba36e2d8070934da4fb0f0e5b92740c6316a629a6a1d7c54dd24208",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-05-30T16:23:15Z",
    "title_canon_sha256": "c8efcf78aa302899ef9cc18e6ac272035333f6b2bf99a1ef541dd7d6f055c070"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10725",
    "kind": "arxiv",
    "version": 3
  }
}