Pith Number

pith:CSCXOPXI

pith:2015:CSCXOPXICD6NSIDI6WWDEQAUJ5

not attested not anchored not stored refs pending

A $1.75$ LP approximation for the Tree Augmentation Problem

Guy Kortsarz, Zeev Nutov

arxiv:1507.03009 v1 · 2015-07-10 · 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{CSCXOPXICD6NSIDI6WWDEQAUJ5}

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	2026-05-18T01:36:46.494740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1485773ee810fcd92068f5ac3240144f791572b7e609814d7cd6260d3a0eaff9

Aliases

arxiv: 1507.03009 · arxiv_version: 1507.03009v1 · doi: 10.48550/arxiv.1507.03009 · pith_short_12: CSCXOPXICD6N · pith_short_16: CSCXOPXICD6NSIDI · pith_short_8: CSCXOPXI

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/CSCXOPXICD6NSIDI6WWDEQAUJ5 \
  | 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: 1485773ee810fcd92068f5ac3240144f791572b7e609814d7cd6260d3a0eaff9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85adabbed42ce6627c87298c06503005ed1fe4d725464a7f1d16cad802e39c3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-07-10T08:41:13Z",
    "title_canon_sha256": "d68daecd84e60ec41753b33a74915eb043422d31a0c8ba816c753292a8a1d56c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03009",
    "kind": "arxiv",
    "version": 1
  }
}