Pith Number

pith:BTAZ7HK7

pith:2017:BTAZ7HK7PFOKU2L5K4RBW3DVRO

not attested not anchored not stored refs pending

Using a Hamiltonian cycle problem algorithm to assist in solving difficult instances of Traveling Salesman Problem

Michael Haythorpe, Serguei Rossomakhine, Vladimir Ejov

arxiv:1705.06855 v1 · 2017-05-19 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTAZ7HK7PFOKU2L5K4RBW3DVRO}

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	2026-05-18T00:44:11.142259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cc19f9d5f795caa697d57221b6c758ba1dd00a29f19eb8eef09659caed63a47

Aliases

arxiv: 1705.06855 · arxiv_version: 1705.06855v1 · doi: 10.48550/arxiv.1705.06855 · pith_short_12: BTAZ7HK7PFOK · pith_short_16: BTAZ7HK7PFOKU2L5 · pith_short_8: BTAZ7HK7

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/BTAZ7HK7PFOKU2L5K4RBW3DVRO \
  | 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: 0cc19f9d5f795caa697d57221b6c758ba1dd00a29f19eb8eef09659caed63a47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4a94d5141454285b297a0056c3c41d19dfc2417aabb2060eb1849731f2e83ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-05-19T04:06:13Z",
    "title_canon_sha256": "fa6f5628f31b510c970bca1e0432d6ef7ada06452937c26c849f07ad0d5f2f15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06855",
    "kind": "arxiv",
    "version": 1
  }
}