Pith Number

pith:XGSIQQ4E

pith:2013:XGSIQQ4EIDZ2ZFWKO3UKHNAJB5

not attested not anchored not stored refs pending

A Construction of the Best Fractal Approximation

Chol-Hui Yun, Dong-Hyok Kim, Yong-Suk Kang

arxiv:1305.3365 v2 · 2013-05-15 · math.DS · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XGSIQQ4EIDZ2ZFWKO3UKHNAJB5}

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	2026-05-18T02:55:20.630378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9a488438440f3ac96ca76e8a3b4090f584a8e9bc08217a08b522271dedebaf0

Aliases

arxiv: 1305.3365 · arxiv_version: 1305.3365v2 · doi: 10.48550/arxiv.1305.3365 · pith_short_12: XGSIQQ4EIDZ2 · pith_short_16: XGSIQQ4EIDZ2ZFWK · pith_short_8: XGSIQQ4E

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/XGSIQQ4EIDZ2ZFWKO3UKHNAJB5 \
  | 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: b9a488438440f3ac96ca76e8a3b4090f584a8e9bc08217a08b522271dedebaf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dae6c3f5b1e7db2c2afc354c710c84e0a4b7a3e84c5b8ec5e658db625a98b0c",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-05-15T06:29:19Z",
    "title_canon_sha256": "1c50d31a491adbd2472460bf6dfd0327a056979347f6c25c14f07896d32061ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3365",
    "kind": "arxiv",
    "version": 2
  }
}