Pith Number

pith:C2WTOX5F

pith:2012:C2WTOX5FYMOPIECZTWRU4UIOZN

not attested not anchored not stored refs pending

Lower Bounds for Local Approximation

Juho Hirvonen, Jukka Suomela, Mika G\"o\"os

arxiv:1201.6675 v1 · 2012-01-31 · cs.DC · 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{C2WTOX5FYMOPIECZTWRU4UIOZN}

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	2026-05-18T03:04:06.905013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16ad375fa5c31cf410599da34e510ecb78b0c5cf8198b511c2a428a4ec88aca7

Aliases

arxiv: 1201.6675 · arxiv_version: 1201.6675v1 · doi: 10.48550/arxiv.1201.6675 · pith_short_12: C2WTOX5FYMOP · pith_short_16: C2WTOX5FYMOPIECZ · pith_short_8: C2WTOX5F

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/C2WTOX5FYMOPIECZTWRU4UIOZN \
  | 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: 16ad375fa5c31cf410599da34e510ecb78b0c5cf8198b511c2a428a4ec88aca7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "131e6f7990b00e911c60600e2c7eac3ba28feb5449064c2a0d6260c6f65e1c19",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2012-01-31T20:31:15Z",
    "title_canon_sha256": "7b20e25fdcf7b7eba58829cea40d2416fc2d1b6677d1c4199a4ca92381befab2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6675",
    "kind": "arxiv",
    "version": 1
  }
}