Pith Number

pith:UCZXGJNA

pith:2015:UCZXGJNAFYAVZF5RXHZCBXQTF5

not attested not anchored not stored refs pending

On the Hierarchy of Block Deterministic Languages

Cl\'ement Miklarz, Ludovic Mignot, Pascal Caron

arxiv:1512.05475 v1 · 2015-12-17 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UCZXGJNAFYAVZF5RXHZCBXQTF5}

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	2026-05-18T01:24:09.979408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0b37325a02e015c97b1b9f220de132f5851dfcd4d65ad44ddcdcf944a5f29c9

Aliases

arxiv: 1512.05475 · arxiv_version: 1512.05475v1 · doi: 10.48550/arxiv.1512.05475 · pith_short_12: UCZXGJNAFYAV · pith_short_16: UCZXGJNAFYAVZF5R · pith_short_8: UCZXGJNA

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/UCZXGJNAFYAVZF5RXHZCBXQTF5 \
  | 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: a0b37325a02e015c97b1b9f220de132f5851dfcd4d65ad44ddcdcf944a5f29c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4d2f1f403ff62312d9ab578daf28bc9d8859071c929e0b32f1643964429c7de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2015-12-17T06:37:53Z",
    "title_canon_sha256": "138392401f336601f6ac1f5566f15204b581d575fdc7556dfe96c39b89c6c4db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.05475",
    "kind": "arxiv",
    "version": 1
  }
}