Pith Number

pith:YMQ3A2WC

pith:2017:YMQ3A2WCILU2QU5NM77UM7AMXZ

not attested not anchored not stored refs pending

Aspects of an adaptive finite element method for the fractional Laplacian: a priori and a posteriori error estimates, efficient implementation and multigrid solver

Christian Glusa, Mark Ainsworth

arxiv:1708.03912 v1 · 2017-08-13 · 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{YMQ3A2WCILU2QU5NM77UM7AMXZ}

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	2026-05-18T00:23:34.274126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c321b06ac242e9a853ad67ff467c0cbe671d05d462141d4c9eec8b7cc7462e34

Aliases

arxiv: 1708.03912 · arxiv_version: 1708.03912v1 · doi: 10.48550/arxiv.1708.03912 · pith_short_12: YMQ3A2WCILU2 · pith_short_16: YMQ3A2WCILU2QU5N · pith_short_8: YMQ3A2WC

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/YMQ3A2WCILU2QU5NM77UM7AMXZ \
  | 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: c321b06ac242e9a853ad67ff467c0cbe671d05d462141d4c9eec8b7cc7462e34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15340e6b85eacc2b975c5ae3e2964f778398f456774b76cfa9e14992f0b18e78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-08-13T14:13:16Z",
    "title_canon_sha256": "5c12cd16d01016f69edb1b8ee1d85c435ed833f7bc3c4afedce3dcde905eee52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.03912",
    "kind": "arxiv",
    "version": 1
  }
}