Pith Number

pith:7LO4XA7P

pith:2015:7LO4XA7P2SNDY6W455N4BRBY42

not attested not anchored not stored refs pending

Two-parameter regularization of ill-posed spherical pseudo-differential equations in the space of continuous functions

Hui Cao, Ian H. Sloan, Pavlo Tkachenko, Sergei V. Pereverzyev

arxiv:1501.00362 v1 · 2015-01-02 · 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{7LO4XA7P2SNDY6W455N4BRBY42}

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	2026-05-18T02:30:09.400637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

faddcb83efd49a3c7adcef5bc0c438e68d532f62ac0709faf35dc9ab6a66b12e

Aliases

arxiv: 1501.00362 · arxiv_version: 1501.00362v1 · doi: 10.48550/arxiv.1501.00362 · pith_short_12: 7LO4XA7P2SND · pith_short_16: 7LO4XA7P2SNDY6W4 · pith_short_8: 7LO4XA7P

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/7LO4XA7P2SNDY6W455N4BRBY42 \
  | 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: faddcb83efd49a3c7adcef5bc0c438e68d532f62ac0709faf35dc9ab6a66b12e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77686614f40dd7d07af5ee41f1d7b35b2c183674906dbb5932b7d58d0466233c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-01-02T08:37:00Z",
    "title_canon_sha256": "7bac867f2299c660ed65181c4714dd649222c8f58915f00ba7b3a64e9a49907a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.00362",
    "kind": "arxiv",
    "version": 1
  }
}