Pith Number

pith:JHL2FSHS

pith:2017:JHL2FSHSMDFVOVFVW7MSNAEBVY

not attested not anchored not stored refs pending

A Unified PTAS for Prize Collecting TSP and Steiner Tree Problem in Doubling Metrics

Haotian Jiang, Shaofeng H.-C. Jiang, T-H. Hubert Chan

arxiv:1710.07774 v2 · 2017-10-21 · 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{JHL2FSHSMDFVOVFVW7MSNAEBVY}

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	2026-05-18T00:12:43.779630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49d7a2c8f260cb5754b5b7d9268081ae0c13e8e4bc4e5bf121f01ee70092e884

Aliases

arxiv: 1710.07774 · arxiv_version: 1710.07774v2 · doi: 10.48550/arxiv.1710.07774 · pith_short_12: JHL2FSHSMDFV · pith_short_16: JHL2FSHSMDFVOVFV · pith_short_8: JHL2FSHS

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/JHL2FSHSMDFVOVFVW7MSNAEBVY \
  | 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: 49d7a2c8f260cb5754b5b7d9268081ae0c13e8e4bc4e5bf121f01ee70092e884

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cc578da334fe7db7c13831cb82f9b5f8e34f66777bc0f957ced52db8b41379d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-10-21T08:33:37Z",
    "title_canon_sha256": "f12936ec63f89b1c767949f80f4b734cfb46185bc26dbd1be3cb66a63c58dba6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07774",
    "kind": "arxiv",
    "version": 2
  }
}