Pith Number

pith:6TUGOTX7

pith:2009:6TUGOTX7NF2POCVT72GRSRSSOA

not attested not anchored not stored refs pending

Hausdorff measure of quasicircles

Ignacio Uriarte-Tuero, Istv\'an Prause, Xavier Tolsa

arxiv:0912.3365 v1 · 2009-12-17 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6TUGOTX7NF2POCVT72GRSRSSOA}

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	2026-05-18T04:04:43.851253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4e8674eff6974f70ab3fe8d194652702cc9c4f6d2881da440238ce1d45f3f6b

Aliases

arxiv: 0912.3365 · arxiv_version: 0912.3365v1 · doi: 10.48550/arxiv.0912.3365 · pith_short_12: 6TUGOTX7NF2P · pith_short_16: 6TUGOTX7NF2POCVT · pith_short_8: 6TUGOTX7

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/6TUGOTX7NF2POCVT72GRSRSSOA \
  | 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: f4e8674eff6974f70ab3fe8d194652702cc9c4f6d2881da440238ce1d45f3f6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64d0d7d4d39f1e6ccf795e413f87774010e9ac14fe5affb199ea5ddfea91f89c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2009-12-17T11:24:05Z",
    "title_canon_sha256": "34e85161e7ba8c628b4a4a843618f1882d78c5a6465a72418497b0cf6ae691ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3365",
    "kind": "arxiv",
    "version": 1
  }
}