Pith Number

pith:HAS7223H

pith:2016:HAS7223HVJVYSZT44FHUUFDLKY

not attested not anchored not stored refs pending

Approximating (Unweighted) Tree Augmentation via Lift-and-Project (Part 0: $1.8+\epsilon$ approximation for (Unweighted) TAP)

Joe Cheriyan, Zhihan Gao

arxiv:1604.00708 v1 · 2016-04-04 · 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{HAS7223HVJVYSZT44FHUUFDLKY}

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	2026-05-18T01:17:48.546246Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3825fd6b67aa6b89667ce14f4a146b560e2d618879d22f96f3933e601f871fb7

Aliases

arxiv: 1604.00708 · arxiv_version: 1604.00708v1 · doi: 10.48550/arxiv.1604.00708 · pith_short_12: HAS7223HVJVY · pith_short_16: HAS7223HVJVYSZT4 · pith_short_8: HAS7223H

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/HAS7223HVJVYSZT44FHUUFDLKY \
  | 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: 3825fd6b67aa6b89667ce14f4a146b560e2d618879d22f96f3933e601f871fb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9117fd2376bb6e90851b1838964bd0d031a4441dd2df38b938831dde5ee6603",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-04-04T00:47:13Z",
    "title_canon_sha256": "1162756af39b528b9e44b078bd0324459bec26910e7ab954c0d9ff03bb8f272e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.00708",
    "kind": "arxiv",
    "version": 1
  }
}