Pith Number

pith:YHTNIRRI

pith:2009:YHTNIRRIVGWYIWKU3CXQ6EN4X4

not attested not anchored not stored refs pending

Physarum boats: If plasmodium sailed it would never leave a port

Andrew Adamatzky

arxiv:0901.4466 v1 · 2009-01-28 · cs.RO · q-bio.CB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YHTNIRRIVGWYIWKU3CXQ6EN4X4}

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	2026-05-18T04:35:05.531575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1e6d44628a9ad845954d8af0f11bcbf22cf91b315087275de11f1dcca76cc98

Aliases

arxiv: 0901.4466 · arxiv_version: 0901.4466v1 · doi: 10.48550/arxiv.0901.4466 · pith_short_12: YHTNIRRIVGWY · pith_short_16: YHTNIRRIVGWYIWKU · pith_short_8: YHTNIRRI

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/YHTNIRRIVGWYIWKU3CXQ6EN4X4 \
  | 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: c1e6d44628a9ad845954d8af0f11bcbf22cf91b315087275de11f1dcca76cc98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b4d64c66ffb894229aaffd93e55962c4c74d0948fa9a1cdb6ff902ac900821b",
    "cross_cats_sorted": [
      "q-bio.CB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2009-01-28T14:12:32Z",
    "title_canon_sha256": "52546406e93b4965f91c54ab01b357bb3e8fe7a99cff0977b44adf77409b8bd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4466",
    "kind": "arxiv",
    "version": 1
  }
}