Pith Number

pith:IJDDRNGE

pith:2012:IJDDRNGEV7YWJBWCMFCTV2YOSX

not attested not anchored not stored refs pending

Toward Turing's A-type Unorganised Machines in an Unconventional Substrate: a Dynamic Representation in Compartmentalised Excitable Chemical Media

Andrew Adamatzky, Ben De Lacy Costello, Julian Holley, Larry Bull

arxiv:1212.1344 v1 · 2012-12-06 · cs.ET

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IJDDRNGEV7YWJBWCMFCTV2YOSX}

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	2026-05-18T03:39:04.190910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

424638b4c4aff16486c261453aeb0e95ef39c7e40eae9b7dbcc3ce2922a03126

Aliases

arxiv: 1212.1344 · arxiv_version: 1212.1344v1 · doi: 10.48550/arxiv.1212.1344 · pith_short_12: IJDDRNGEV7YW · pith_short_16: IJDDRNGEV7YWJBWC · pith_short_8: IJDDRNGE

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/IJDDRNGEV7YWJBWCMFCTV2YOSX \
  | 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: 424638b4c4aff16486c261453aeb0e95ef39c7e40eae9b7dbcc3ce2922a03126

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "724d12e0a6cfef01bb7385140e3432ebbe04ce44e4aa0ab6bbc60c27cbe0f237",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2012-12-06T15:11:00Z",
    "title_canon_sha256": "d4bc4fa7948ff891603d2d09c337530f62cc49a469fc17457248f0f9cab925a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1344",
    "kind": "arxiv",
    "version": 1
  }
}