Pith Number

pith:RR3A2X7N

pith:2017:RR3A2X7NMYMFRETH35NMJP44FV

not attested not anchored not stored refs pending

A local search 2.917-approximation algorithm for duo-preservation string mapping

Guohui Lin, Taibo Luo, Yao Xu, Yong Chen

arxiv:1702.01877 v1 · 2017-02-07 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RR3A2X7NMYMFRETH35NMJP44FV}

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	2026-05-18T00:51:11.023691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c760d5fed6618589267df5ac4bf9c2d623dd0e112f8a042404eff2022d18800

Aliases

arxiv: 1702.01877 · arxiv_version: 1702.01877v1 · doi: 10.48550/arxiv.1702.01877 · pith_short_12: RR3A2X7NMYMF · pith_short_16: RR3A2X7NMYMFRETH · pith_short_8: RR3A2X7N

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/RR3A2X7NMYMFRETH35NMJP44FV \
  | 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: 8c760d5fed6618589267df5ac4bf9c2d623dd0e112f8a042404eff2022d18800

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "935e4c45181467d9baeddb5ecedd32ad987efc5cf06cd021aa279a9a0b1926b3",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-02-07T04:40:50Z",
    "title_canon_sha256": "a9987853e1ee53bda57d73c2a93938f5114d78dae332e0520a5e848c797e7060"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.01877",
    "kind": "arxiv",
    "version": 1
  }
}