Pith Number

pith:3W2VGJOY

pith:2009:3W2VGJOYUGFHB3RDQ4ZLIRANK5

not attested not anchored not stored refs pending

The Bj\"orling problem for non-minimal constant mean curvature surfaces

David Brander, Josef F. Dorfmeister

arxiv:0908.3274 v2 · 2009-08-23 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3W2VGJOYUGFHB3RDQ4ZLIRANK5}

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	2026-05-18T04:41:35.928503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddb55325d8a18a70ee238732b4440d574c865f14b5aadc1ac18340c74edb5bf7

Aliases

arxiv: 0908.3274 · arxiv_version: 0908.3274v2 · doi: 10.48550/arxiv.0908.3274 · pith_short_12: 3W2VGJOYUGFH · pith_short_16: 3W2VGJOYUGFHB3RD · pith_short_8: 3W2VGJOY

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/3W2VGJOYUGFHB3RDQ4ZLIRANK5 \
  | 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: ddb55325d8a18a70ee238732b4440d574c865f14b5aadc1ac18340c74edb5bf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21a2a6bc7425095ff30aea1a1013b26d0d96a01b10d8c889565b122c7e4e707f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-08-23T19:03:25Z",
    "title_canon_sha256": "578991366c60c95f580fd9eaf489771b217b6e4fdbb320628f08e64c5373a94f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3274",
    "kind": "arxiv",
    "version": 2
  }
}