Pith Number

pith:6P26QNC6

pith:2017:6P26QNC6SXBDZD73D3CTSDRCY6

not attested not anchored not stored refs pending

On the NP-hardness of scheduling with time restrictions

An Zhang, Guangting Chen, Lin Chen, Yong Chen

arxiv:1703.00575 v1 · 2017-03-02 · 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{6P26QNC6SXBDZD73D3CTSDRCY6}

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	2026-05-18T00:49:41.293842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3f5e8345e95c23c8ffb1ec5390e22c79b447696f5a7bf945b20b4f737158745

Aliases

arxiv: 1703.00575 · arxiv_version: 1703.00575v1 · doi: 10.48550/arxiv.1703.00575 · pith_short_12: 6P26QNC6SXBD · pith_short_16: 6P26QNC6SXBDZD73 · pith_short_8: 6P26QNC6

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/6P26QNC6SXBDZD73D3CTSDRCY6 \
  | 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: f3f5e8345e95c23c8ffb1ec5390e22c79b447696f5a7bf945b20b4f737158745

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "101af3cc8200d27364d1ae1dfb418225bc9746e81956a31b49b51ac9b6de8eb8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-03-02T01:19:26Z",
    "title_canon_sha256": "4aac48ab30e5b0f82d02688e613fe2b472f77b9479e1e654a6f5086d83b1cdc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.00575",
    "kind": "arxiv",
    "version": 1
  }
}