Pith Number

pith:UPT3YDPA

pith:2016:UPT3YDPA34ECCZISONAORX2Z2F

not attested not anchored not stored refs pending

List approximation for increasing Kolmogorov complexity

Marius Zimand

arxiv:1609.05984 v4 · 2016-09-20 · cs.CC · cs.IT · math.IT · 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{UPT3YDPA34ECCZISONAORX2Z2F}

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	2026-05-18T00:51:22.475217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3e7bc0de0df082165127340e8df59d170d1f6aef95aaf68ebcb772116dcf38a

Aliases

arxiv: 1609.05984 · arxiv_version: 1609.05984v4 · doi: 10.48550/arxiv.1609.05984 · pith_short_12: UPT3YDPA34EC · pith_short_16: UPT3YDPA34ECCZIS · pith_short_8: UPT3YDPA

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/UPT3YDPA34ECCZISONAORX2Z2F \
  | 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: a3e7bc0de0df082165127340e8df59d170d1f6aef95aaf68ebcb772116dcf38a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc69c6b3a1f00452444f867bec77f647b66cc41ee96b799fd0b48d3aad2b7fa0",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-09-20T01:19:02Z",
    "title_canon_sha256": "76b0f87939f1597252b85f892e652b23920e007778e3cfc67ba70f400dd77735"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.05984",
    "kind": "arxiv",
    "version": 4
  }
}