Pith Number

pith:MP37BZ7N

pith:2018:MP37BZ7NL57TBZLBC2IYH33Y3K

not attested not anchored not stored refs pending

Constant Factor Approximation Algorithm for Weighted Flow Time on a Single Machine in Pseudo-polynomial time

Amit Kumar, Jatin Batra, Naveen Garg

arxiv:1802.07439 v3 · 2018-02-21 · 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{MP37BZ7NL57TBZLBC2IYH33Y3K}

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	2026-05-18T00:07:49.954289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63f7f0e7ed5f7f30e561169183ef78da9411b63e334a9753fccfbe742df525a3

Aliases

arxiv: 1802.07439 · arxiv_version: 1802.07439v3 · doi: 10.48550/arxiv.1802.07439 · pith_short_12: MP37BZ7NL57T · pith_short_16: MP37BZ7NL57TBZLB · pith_short_8: MP37BZ7N

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/MP37BZ7NL57TBZLBC2IYH33Y3K \
  | 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: 63f7f0e7ed5f7f30e561169183ef78da9411b63e334a9753fccfbe742df525a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8395890182b2b0ae678472b8567bafc6be05fd53caa7157eafd30da1625b1888",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-02-21T06:36:26Z",
    "title_canon_sha256": "963ac5b3e889057ebbe66d051e0601251a2341a1a46e255168c6a9930ee721c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07439",
    "kind": "arxiv",
    "version": 3
  }
}