Pith Number

pith:OL4IET55

pith:2015:OL4IET55OQ22IDW44E76OTNWWA

not attested not anchored not stored refs pending

Approximating (Unweighted) Tree Augmentation via Lift-and-Project, Part I: Stemless TAP

Joe Cheriyan, Zhihan Gao

arxiv:1508.07504 v1 · 2015-08-29 · 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{OL4IET55OQ22IDW44E76OTNWWA}

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	2026-05-18T01:34:32.127222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72f8824fbd7435a40edce13fe74db6b0014184a185ab0cbc31f2a18689f5d5e1

Aliases

arxiv: 1508.07504 · arxiv_version: 1508.07504v1 · doi: 10.48550/arxiv.1508.07504 · pith_short_12: OL4IET55OQ22 · pith_short_16: OL4IET55OQ22IDW4 · pith_short_8: OL4IET55

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/OL4IET55OQ22IDW44E76OTNWWA \
  | 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: 72f8824fbd7435a40edce13fe74db6b0014184a185ab0cbc31f2a18689f5d5e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a83aa480d05ca6d918998fa9c66c9764601deee7884aab4a96ca51b5e9b0b073",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-08-29T20:48:09Z",
    "title_canon_sha256": "363f4fd857fcfc6fc288c71e520297066b86054911fb923ca673d81af6b5cc9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07504",
    "kind": "arxiv",
    "version": 1
  }
}