Pith Number

pith:B3U7CDML

pith:2011:B3U7CDMLEV5N6NZAS4APPXKOFB

not attested not anchored not stored refs pending

Solving eigenvalue problems on curved surfaces using the Closest Point Method

Colin B. Macdonald, Jeremy Brandman, Steven J. Ruuth

arxiv:1106.4351 v1 · 2011-06-21 · 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{B3U7CDMLEV5N6NZAS4APPXKOFB}

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	2026-05-18T04:13:38.881736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ee9f10d8b257adf37209700f7dd4e286761a842391e0886924a93cff972a237

Aliases

arxiv: 1106.4351 · arxiv_version: 1106.4351v1 · doi: 10.48550/arxiv.1106.4351 · pith_short_12: B3U7CDMLEV5N · pith_short_16: B3U7CDMLEV5N6NZA · pith_short_8: B3U7CDML

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/B3U7CDMLEV5N6NZAS4APPXKOFB \
  | 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: 0ee9f10d8b257adf37209700f7dd4e286761a842391e0886924a93cff972a237

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "855709908cd79867bf25dfb55fe04491fba6e88ff44f76d523ea9cc4515e8cc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-06-21T23:14:16Z",
    "title_canon_sha256": "e27c22e4f57ee7585a312bb59f263ee7f2367dd7eb705b400d0b54c22f0212a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.4351",
    "kind": "arxiv",
    "version": 1
  }
}