Pith Number

pith:H3L3HA4B

pith:2013:H3L3HA4BWU34CY2UEGW6KFCDZQ

not attested not anchored not stored refs pending

Boundary Value Problems on a Half Sierpinski Gasket

Robert S. Strichartz, Weilin Li

arxiv:1304.3522 v3 · 2013-04-12 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3L3HA4BWU34CY2UEGW6KFCDZQ}

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	2026-05-18T00:50:58.137117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ed7b38381b537c1635421ade51443cc231449edf59087acbdf4a5f27dfcdd2f

Aliases

arxiv: 1304.3522 · arxiv_version: 1304.3522v3 · doi: 10.48550/arxiv.1304.3522 · pith_short_12: H3L3HA4BWU34 · pith_short_16: H3L3HA4BWU34CY2U · pith_short_8: H3L3HA4B

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/H3L3HA4BWU34CY2UEGW6KFCDZQ \
  | 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: 3ed7b38381b537c1635421ade51443cc231449edf59087acbdf4a5f27dfcdd2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b91abda38c9a30c7d366cf597a1d8278c4d58ca5205a323aa4ee2d331edb540",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-04-12T02:10:59Z",
    "title_canon_sha256": "5223c4ceb17164fce5861a2c8bfd1c686be3b0da89b0d19151cc450d37cdefd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3522",
    "kind": "arxiv",
    "version": 3
  }
}