Pith Number

pith:IIPGJWGR

pith:2007:IIPGJWGR6RR4JQHJWWSYFSRJSO

not attested not anchored not stored refs pending

Universal computation with limited resources: Belousov-Zhabotinsky and Physarum computers

Andrew Adamatzky, Ben De Lacy Costello, Tomohiro Shirakawa

arxiv:0711.2711 v1 · 2007-11-17 · nlin.PS · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IIPGJWGR6RR4JQHJWWSYFSRJSO}

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	2026-05-18T04:35:05.779713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

421e64d8d1f463c4c0e9b5a582ca299392328fd1f35eb079f4b2dc5569fe73c3

Aliases

arxiv: 0711.2711 · arxiv_version: 0711.2711v1 · doi: 10.48550/arxiv.0711.2711 · pith_short_12: IIPGJWGR6RR4 · pith_short_16: IIPGJWGR6RR4JQHJ · pith_short_8: IIPGJWGR

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/IIPGJWGR6RR4JQHJWWSYFSRJSO \
  | 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: 421e64d8d1f463c4c0e9b5a582ca299392328fd1f35eb079f4b2dc5569fe73c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96952abd7e339001d86ddb86f8fe3e2b80f8ac007709bb4e9851dfdc363030b2",
    "cross_cats_sorted": [
      "nlin.AO"
    ],
    "license": "",
    "primary_cat": "nlin.PS",
    "submitted_at": "2007-11-17T02:02:14Z",
    "title_canon_sha256": "d5707fe199ed37ab348374fe6dc8c8a25987e64fc33c65c9aeaaf6486fb12194"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.2711",
    "kind": "arxiv",
    "version": 1
  }
}