Pith Number

pith:PFMMJUJY

pith:2013:PFMMJUJY6OHEJN6NRAWT45TCR2

not attested not anchored not stored refs pending

Computation of the Travelling Salesman Problem by a Shrinking Blob

Andrew Adamatzky, Jeff Jones

arxiv:1303.4969 v2 · 2013-03-20 · cs.ET · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFMMJUJY6OHEJN6NRAWT45TCR2}

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	2026-05-18T03:29:49.894603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7958c4d138f38e44b7cd882d3e76628eb5b513de236895e448985511d536b72c

Aliases

arxiv: 1303.4969 · arxiv_version: 1303.4969v2 · doi: 10.48550/arxiv.1303.4969 · pith_short_12: PFMMJUJY6OHE · pith_short_16: PFMMJUJY6OHEJN6N · pith_short_8: PFMMJUJY

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/PFMMJUJY6OHEJN6NRAWT45TCR2 \
  | 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: 7958c4d138f38e44b7cd882d3e76628eb5b513de236895e448985511d536b72c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d245b50f8a1c8fdd0dd2ba1ee648e6761b464bad4604f0f2ce1d8a785f439042",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2013-03-20T15:36:54Z",
    "title_canon_sha256": "d26dd9203ea9f880d0cf191f7136209b58572450b213207a5806df7698437d2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4969",
    "kind": "arxiv",
    "version": 2
  }
}