Pith Number

pith:UZE6FN6P

pith:2012:UZE6FN6PLV2UHLAWZTWYYHRHHD

not attested not anchored not stored refs pending

On the toggling-branching recurrence of Computability Logic

Daming Zhu, Junfeng Luan, Meixia Qu

arxiv:1207.1188 v1 · 2012-07-05 · cs.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{UZE6FN6PLV2UHLAWZTWYYHRHHD}

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	2026-05-18T03:51:46.660404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a649e2b7cf5d7543ac16cced8c1e2738ceec86722721af3170c358009ab242f3

Aliases

arxiv: 1207.1188 · arxiv_version: 1207.1188v1 · doi: 10.48550/arxiv.1207.1188 · pith_short_12: UZE6FN6PLV2U · pith_short_16: UZE6FN6PLV2UHLAW · pith_short_8: UZE6FN6P

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/UZE6FN6PLV2UHLAWZTWYYHRHHD \
  | 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: a649e2b7cf5d7543ac16cced8c1e2738ceec86722721af3170c358009ab242f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a3a15dba7862c0a22dd5f0f98951d0cc3bfc5c4934845060744317859ecb27c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-07-05T08:28:41Z",
    "title_canon_sha256": "5dbd02af7e4011ef2304b6ea9b144ac4f719e80308145d578208ef3e876b3091"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1188",
    "kind": "arxiv",
    "version": 1
  }
}