Pith Number

pith:MP4TTATU

pith:2019:MP4TTATUBGW736R5VR7J76GCRR

not attested not anchored not stored refs pending

Deterministic 2-Dimensional Temperature-1 Tile Assembly Systems Cannot Compute

Hendrik Jan Hoogeboom, J\'er\^ome Durand-Lose, Nata\v{s}a Jonoska

arxiv:1901.08575 v1 · 2019-01-24 · cs.CC · cs.CG · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MP4TTATUBGW736R5VR7J76GCRR}

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	2026-05-17T23:55:35.119416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63f939827409adfdfa3dac7e9ff8c28c488e459a352e89b6eb9cbf9dc317cab9

Aliases

arxiv: 1901.08575 · arxiv_version: 1901.08575v1 · doi: 10.48550/arxiv.1901.08575 · pith_short_12: MP4TTATUBGW7 · pith_short_16: MP4TTATUBGW736R5 · pith_short_8: MP4TTATU

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/MP4TTATUBGW736R5VR7J76GCRR \
  | 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: 63f939827409adfdfa3dac7e9ff8c28c488e459a352e89b6eb9cbf9dc317cab9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f32f6fd47f156e737cddc05e3c79537be0e58795533f8d12ca15db6ea6835dc6",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-01-24T18:47:33Z",
    "title_canon_sha256": "4dd8b5290892b7eddcfa5912fad0a2cb18a69acef65030a9550c70e32475eebe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08575",
    "kind": "arxiv",
    "version": 1
  }
}