Pith Number

pith:LCIBCZV3

pith:2014:LCIBCZV3XK7G3JD5UAZTIWUAVI

not attested not anchored not stored refs pending

The automatic solution of partial differential equations using a global spectral method

Alex Townsend, Sheehan Olver

arxiv:1409.2789 v2 · 2014-09-09 · 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{LCIBCZV3XK7G3JD5UAZTIWUAVI}

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	2026-05-18T01:15:53.313569Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58901166bbbabe6da47da033345a80aa07eda35867f4150dbe41bd441ccedbfb

Aliases

arxiv: 1409.2789 · arxiv_version: 1409.2789v2 · doi: 10.48550/arxiv.1409.2789 · pith_short_12: LCIBCZV3XK7G · pith_short_16: LCIBCZV3XK7G3JD5 · pith_short_8: LCIBCZV3

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/LCIBCZV3XK7G3JD5UAZTIWUAVI \
  | 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: 58901166bbbabe6da47da033345a80aa07eda35867f4150dbe41bd441ccedbfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50c1d78e963e46f915b62e6f1ae212d65e39812ff645e422f5a93af883cb170e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-09-09T16:02:03Z",
    "title_canon_sha256": "ec418fbf2c7099c139a30d0da9f5dde40adbd86917dbd30517ac1582da238715"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2789",
    "kind": "arxiv",
    "version": 2
  }
}