Pith Number

pith:SCEAHHYZ

pith:2011:SCEAHHYZYSWHYLH5GBNXRTRLEV

not attested not anchored not stored refs pending

Iterative methods for shifted positive definite linear systems and time discretization of the heat equation

Vidar Thom\'ee, William McLean

arxiv:1111.5105 v1 · 2011-11-22 · math.NA · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SCEAHHYZYSWHYLH5GBNXRTRLEV}

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	2026-05-18T01:21:39.864027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9088039f19c4ac7c2cfd305b78ce2b254b9d64d1f037963f030cca3c53d76e53

Aliases

arxiv: 1111.5105 · arxiv_version: 1111.5105v1 · doi: 10.48550/arxiv.1111.5105 · pith_short_12: SCEAHHYZYSWH · pith_short_16: SCEAHHYZYSWHYLH5 · pith_short_8: SCEAHHYZ

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/SCEAHHYZYSWHYLH5GBNXRTRLEV \
  | 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: 9088039f19c4ac7c2cfd305b78ce2b254b9d64d1f037963f030cca3c53d76e53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e75779d85b8a447346e7b1c2e771fd74e3e450e4cd0582749409f8db7e5ef44",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-11-22T05:48:44Z",
    "title_canon_sha256": "0fdcd661c8c6e1bba8588a3ba4253fb31539f60e83a22612609f5dc8ba9dfdaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.5105",
    "kind": "arxiv",
    "version": 1
  }
}