Pith Number

pith:43C7SOLH

pith:2016:43C7SOLH42JARAWOERUE26GM2J

not attested not anchored not stored refs pending

$\mathsf{RT}_2^2$ does not imply $\mathsf{WKL}_0$

Lu Liu

arxiv:1602.03784 v1 · 2016-02-11 · 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{43C7SOLH42JARAWOERUE26GM2J}

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	2026-05-18T01:20:56.567820Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6c5f93967e6920882ce24684d78ccd25499cb3f394e22776464de71c7363808

Aliases

arxiv: 1602.03784 · arxiv_version: 1602.03784v1 · doi: 10.48550/arxiv.1602.03784 · pith_short_12: 43C7SOLH42JA · pith_short_16: 43C7SOLH42JARAWO · pith_short_8: 43C7SOLH

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/43C7SOLH42JARAWOERUE26GM2J \
  | 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: e6c5f93967e6920882ce24684d78ccd25499cb3f394e22776464de71c7363808

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f400485190956fbf6aef3fe828832a6812a0ddebb7bf64ec4b94252742760e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-02-11T16:27:54Z",
    "title_canon_sha256": "a42c8fcc2404472a58016e6bf8636053b5bcbdae7ea0a09758ac4bcab07b475e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.03784",
    "kind": "arxiv",
    "version": 1
  }
}