Pith Number

pith:QWMTVDCV

pith:2017:QWMTVDCVPGNIV3FF57QI57HV3C

not attested not anchored not stored refs pending

A $(2 + \epsilon)$-approximation for precedence constrained single machine scheduling with release dates and total weighted completion time objective

Liya Yang, Ren\'e Sitters

arxiv:1706.07604 v1 · 2017-06-23 · cs.DS · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QWMTVDCVPGNIV3FF57QI57HV3C}

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	2026-05-18T00:41:48.659091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85993a8c55799a8aeca5efe08efcf5d8b65bbff7778dbf87ed50657f4fed464e

Aliases

arxiv: 1706.07604 · arxiv_version: 1706.07604v1 · doi: 10.48550/arxiv.1706.07604 · pith_short_12: QWMTVDCVPGNI · pith_short_16: QWMTVDCVPGNIV3FF · pith_short_8: QWMTVDCV

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/QWMTVDCVPGNIV3FF57QI57HV3C \
  | 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: 85993a8c55799a8aeca5efe08efcf5d8b65bbff7778dbf87ed50657f4fed464e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8e12c017e59e19c42937ece0ad5cb2d4c622ce81f11d2b249b30291b6c23eea",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-06-23T09:12:01Z",
    "title_canon_sha256": "5247e4e127e0a7028a9182a04791b03f3e8c5ac6743d60b8a70305e53c7e94fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.07604",
    "kind": "arxiv",
    "version": 1
  }
}