Pith Number

pith:FJVX4IBR

pith:2017:FJVX4IBRK3HSBPT6CGRKZXWBRM

not attested not anchored not stored refs pending

Approximation algorithms for TSP with neighborhoods in the plane

Adrian Dumitrescu, Joseph S. B. Mitchell

arxiv:1703.01640 v1 · 2017-03-05 · cs.CG · 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{FJVX4IBRK3HSBPT6CGRKZXWBRM}

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	2026-05-18T00:49:30.026800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a6b7e203156cf20be7e11a2acdec18b331fa748b619c5cb00cb8a82019fcea9

Aliases

arxiv: 1703.01640 · arxiv_version: 1703.01640v1 · doi: 10.48550/arxiv.1703.01640 · pith_short_12: FJVX4IBRK3HS · pith_short_16: FJVX4IBRK3HSBPT6 · pith_short_8: FJVX4IBR

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/FJVX4IBRK3HSBPT6CGRKZXWBRM \
  | 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: 2a6b7e203156cf20be7e11a2acdec18b331fa748b619c5cb00cb8a82019fcea9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78e95daa7d65a698777a3b1c2cd4cb9e424e84fecff281a97be7e6cd885b2a9c",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-03-05T18:24:23Z",
    "title_canon_sha256": "7f1939f06d6fa5931639a09a0e776c6600207e68f5bd5d5e96e2d370731f196c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.01640",
    "kind": "arxiv",
    "version": 1
  }
}