Pith Number

pith:IQOTHNOE

pith:2008:IQOTHNOEPGAREINBXSY7VRNWN4

not attested not anchored not stored refs pending

Periodic Single-Pass Instruction Sequences

Alban Ponse, Jan A. Bergstra

arxiv:0810.1151 v2 · 2008-10-07 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IQOTHNOEPGAREINBXSY7VRNWN4}

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	2026-05-18T03:27:55.081717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

441d33b5c479811221a1bcb1fac5b66f1943c2283a3612d3eb928df78822cff0

Aliases

arxiv: 0810.1151 · arxiv_version: 0810.1151v2 · doi: 10.48550/arxiv.0810.1151 · pith_short_12: IQOTHNOEPGAR · pith_short_16: IQOTHNOEPGAREINB · pith_short_8: IQOTHNOE

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/IQOTHNOEPGAREINBXSY7VRNWN4 \
  | 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: 441d33b5c479811221a1bcb1fac5b66f1943c2283a3612d3eb928df78822cff0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16a3d480765c3ac0abfc6bd2544a6f8eee7ce43b923f9e295dcda45a9284fee5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2008-10-07T13:55:21Z",
    "title_canon_sha256": "86d01c142e1176dac09a0b42d87227b4b4f44ee5fc94832d0721f938e04b19bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.1151",
    "kind": "arxiv",
    "version": 2
  }
}