Pith Number

pith:PF6KO4D4

pith:2008:PF6KO4D42DQGXLIYZOPHG5V57M

not attested not anchored not stored refs pending

Convergence of adaptive finite element methods for eigenvalue problems

Carlos Zuppa, Eduardo M. Garau, Pedro Morin

arxiv:0803.0365 v1 · 2008-03-04 · math.NA · cs.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{PF6KO4D42DQGXLIYZOPHG5V57M}

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	2026-06-03T22:06:04.783780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

797ca7707cd0e06bad18cb9e7376bdfb180f1e623fe9dd85287d01a2b204b0b1

Aliases

arxiv: 0803.0365 · arxiv_version: 0803.0365v1 · doi: 10.48550/arxiv.0803.0365 · pith_short_12: PF6KO4D42DQG · pith_short_16: PF6KO4D42DQGXLIY · pith_short_8: PF6KO4D4

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/PF6KO4D42DQGXLIYZOPHG5V57M \
  | 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: 797ca7707cd0e06bad18cb9e7376bdfb180f1e623fe9dd85287d01a2b204b0b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56fa06cb22c0e315709a1d77bfb2b0386051cb31e835968ee03a9af705e10e21",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2008-03-04T05:31:45Z",
    "title_canon_sha256": "78eec01d99c23479480fe8f13429321047154ae37afa8ffa5e207a2d9c81061a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.0365",
    "kind": "arxiv",
    "version": 1
  }
}