Pith Number

pith:BRLDPJXB

pith:2023:BRLDPJXB76QR3RYFTWLFVST7W2

not attested not anchored not stored refs pending

Flat origami is Turing Complete

Inna Zakharevich, Thomas C. Hull

arxiv:2309.07932 v4 · 2023-09-13 · math.CO · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BRLDPJXB76QR3RYFTWLFVST7W2}

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	2026-07-05T10:20:09.811919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c5637a6e1ffa11dc7059d965aca7fb6a32d369d2036d5591a0b5d23fb3144ee

Aliases

arxiv: 2309.07932 · arxiv_version: 2309.07932v4 · doi: 10.48550/arxiv.2309.07932 · pith_short_12: BRLDPJXB76QR · pith_short_16: BRLDPJXB76QR3RYF · pith_short_8: BRLDPJXB

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/BRLDPJXB76QR3RYFTWLFVST7W2 \
  | 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: 0c5637a6e1ffa11dc7059d965aca7fb6a32d369d2036d5591a0b5d23fb3144ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3123ea337c7667e8ecafe79deb02a9275adba847143a42467ccbeed00d7567fa",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2023-09-13T20:15:49Z",
    "title_canon_sha256": "5e888b23a4368f43b0e624189604d2df4deb9a4c306c00586c86330e30166f66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.07932",
    "kind": "arxiv",
    "version": 4
  }
}