Pith Number

pith:36N7MXFK

pith:2017:36N7MXFKLMHBXHPZBFVPZIAAT3

not attested not anchored not stored refs pending

Coloring Down: $3/2$-approximation for special cases of the weighted tree augmentation problem

Jennifer Iglesias, R. Ravi

arxiv:1707.05240 v1 · 2017-07-17 · 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{36N7MXFKLMHBXHPZBFVPZIAAT3}

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	2026-05-18T00:40:09.097068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df9bf65caa5b0e1b9df9096afca0009ec4a872821d8a3efbf9441002f7b46747

Aliases

arxiv: 1707.05240 · arxiv_version: 1707.05240v1 · doi: 10.48550/arxiv.1707.05240 · pith_short_12: 36N7MXFKLMHB · pith_short_16: 36N7MXFKLMHBXHPZ · pith_short_8: 36N7MXFK

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/36N7MXFKLMHBXHPZBFVPZIAAT3 \
  | 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: df9bf65caa5b0e1b9df9096afca0009ec4a872821d8a3efbf9441002f7b46747

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98389da542b095ec93143efd68e684dd4c3d1eea7c9b738522e3b86cf2537c9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-07-17T15:42:38Z",
    "title_canon_sha256": "ffc1dae56927daf82d41284f722c1b199baf7b3dfdadac068a07f3bd94402b1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.05240",
    "kind": "arxiv",
    "version": 1
  }
}