Pith Number

pith:6NMZG4PV

pith:2008:6NMZG4PVWLJ3RW3RLV2Q443MKQ

not attested not anchored not stored refs pending

On the implementation of exponential methods for semilinear parabolic equations

Maria Lopez-Fernandez

arxiv:0810.4101 v1 · 2008-10-22 · 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{6NMZG4PVWLJ3RW3RLV2Q443MKQ}

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	2026-06-03T23:06:08.214298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3599371f5b2d3b8db715d750e736c54063fb29b5730ebfcfee763cee49716e2

Aliases

arxiv: 0810.4101 · arxiv_version: 0810.4101v1 · doi: 10.48550/arxiv.0810.4101 · pith_short_12: 6NMZG4PVWLJ3 · pith_short_16: 6NMZG4PVWLJ3RW3R · pith_short_8: 6NMZG4PV

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/6NMZG4PVWLJ3RW3RLV2Q443MKQ \
  | 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: f3599371f5b2d3b8db715d750e736c54063fb29b5730ebfcfee763cee49716e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8877430cbea0fb4bd77be4b976107790e64f8b293b4b88783afe373c6e57d625",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2008-10-22T16:17:12Z",
    "title_canon_sha256": "4f4ac9edb9546509a99f5c00c68cb3a6be1661b0921eb47fd3f30e44f01a04f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.4101",
    "kind": "arxiv",
    "version": 1
  }
}