Pith Number

pith:OOGPWB4K

pith:2020:OOGPWB4KN65ZEM2Q4HDNUMU7RY

not attested not anchored not stored refs pending

A Generative Graph Method to Solve the Travelling Salesman Problem

Amal Nammouchi, Hakim Ghazzai, Yehia Massoud

arxiv:2007.04949 v1 · 2020-07-09 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OOGPWB4KN65ZEM2Q4HDNUMU7RY}

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	2026-07-05T01:17:36.007193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

738cfb078a6fbb923350e1c6da329f8e111068ace762f88725498e95978118c9

Aliases

arxiv: 2007.04949 · arxiv_version: 2007.04949v1 · doi: 10.48550/arxiv.2007.04949 · pith_short_12: OOGPWB4KN65Z · pith_short_16: OOGPWB4KN65ZEM2Q · pith_short_8: OOGPWB4K

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/OOGPWB4KN65ZEM2Q4HDNUMU7RY \
  | 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: 738cfb078a6fbb923350e1c6da329f8e111068ace762f88725498e95978118c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "812997d1060c49ff9530130b0af8641b830984a4255386ac2be93d850b7771e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2020-07-09T17:23:55Z",
    "title_canon_sha256": "be7c2b2828bdaae6f42775b6a31ee373e75ebb684f36aa24fbe0397f6d2119b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.04949",
    "kind": "arxiv",
    "version": 1
  }
}