Pith Number

pith:G4CCXTF2

pith:2016:G4CCXTF2XF6TJRMANWHKOF4DZB

not attested not anchored not stored refs pending

Constant-factor approximations for asymmetric TSP on nearly-embeddable graphs

Anastasios Sidiropoulos, Ario Salmasi, Daniel Marx

arxiv:1601.01372 v1 · 2016-01-07 · cs.DS · 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{G4CCXTF2XF6TJRMANWHKOF4DZB}

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	2026-05-18T01:23:15.603056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37042bccbab97d34c5806d8ea71783c84c7f3428a4b7ff68ebb6237a90257652

Aliases

arxiv: 1601.01372 · arxiv_version: 1601.01372v1 · doi: 10.48550/arxiv.1601.01372 · pith_short_12: G4CCXTF2XF6T · pith_short_16: G4CCXTF2XF6TJRMA · pith_short_8: G4CCXTF2

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/G4CCXTF2XF6TJRMANWHKOF4DZB \
  | 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: 37042bccbab97d34c5806d8ea71783c84c7f3428a4b7ff68ebb6237a90257652

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "836eb176e649e6fbea63ac13146b7c277135f997a773782c49ad89378f91c900",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-01-07T02:09:22Z",
    "title_canon_sha256": "e0f14dfc772fc3317e263b1d13d9213cc354308df33a1927312602476258a220"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.01372",
    "kind": "arxiv",
    "version": 1
  }
}