Pith Number

pith:PECWWGAI

pith:2017:PECWWGAIP6TED55D6CWKWAS52G

not attested not anchored not stored refs pending

Approaching $\frac{3}{2}$ for the $s$-$t$-path TSP

Jens Vygen, Vera Traub

arxiv:1707.03992 v4 · 2017-07-13 · cs.DM · cs.DS · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PECWWGAIP6TED55D6CWKWAS52G}

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	2026-05-17T23:39:58.924034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79056b18087fa641f7a3f0acab025dd1b74197aad2ed9c2e6d489ea2d1acf8bd

Aliases

arxiv: 1707.03992 · arxiv_version: 1707.03992v4 · doi: 10.48550/arxiv.1707.03992 · pith_short_12: PECWWGAIP6TE · pith_short_16: PECWWGAIP6TED55D · pith_short_8: PECWWGAI

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/PECWWGAIP6TED55D6CWKWAS52G \
  | 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: 79056b18087fa641f7a3f0acab025dd1b74197aad2ed9c2e6d489ea2d1acf8bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1bf09c75ff006400120246715b84e687773673d52fb89b50bff09ff2568661a",
    "cross_cats_sorted": [
      "cs.DS",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-07-13T07:01:48Z",
    "title_canon_sha256": "58d07dadad90f609c978453911d44733f4a719000f5a196a79b86e1bc7966534"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03992",
    "kind": "arxiv",
    "version": 4
  }
}