Pith Number

pith:N34OUQRC

pith:2017:N34OUQRCYNZIT3TBK6FARE3YQV

not attested not anchored not stored refs pending

Spectral analysis and multigrid preconditioners for two-dimensional space-fractional diffusion equations

Hamid Moghaderi, Marco Donatelli, Mariarosa Mazza, Mehdi Dehghan

arxiv:1706.06844 v1 · 2017-06-21 · 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{N34OUQRCYNZIT3TBK6FARE3YQV}

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	2026-05-18T00:33:17.190364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ef8ea4222c37289ee61578a089378854789f624688d1f3a7b3d7beacd44f9ba

Aliases

arxiv: 1706.06844 · arxiv_version: 1706.06844v1 · doi: 10.48550/arxiv.1706.06844 · pith_short_12: N34OUQRCYNZI · pith_short_16: N34OUQRCYNZIT3TB · pith_short_8: N34OUQRC

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/N34OUQRCYNZIT3TBK6FARE3YQV \
  | 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: 6ef8ea4222c37289ee61578a089378854789f624688d1f3a7b3d7beacd44f9ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc070c1a31bd6bcf61650644522a6499edd2d1172092f14d2bab27a303b39fa1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-06-21T11:54:40Z",
    "title_canon_sha256": "0840a1d8762198b2422b262ead2029dae83e4c869b43af73b66aa4c002bb6b1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.06844",
    "kind": "arxiv",
    "version": 1
  }
}