Pith Number

pith:G26NSWDZ

pith:2019:G26NSWDZBNVIME3OEXSGYHAYE4

not attested not anchored not stored refs pending

FEAST for differential eigenvalue problems

Alex Townsend, Andrew Horning

arxiv:1901.04533 v3 · 2019-01-14 · 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{G26NSWDZBNVIME3OEXSGYHAYE4}

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	2026-07-05T09:35:04.216736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36bcd958790b6a86136e25e46c1c182702a3e3044d1bc35068b0cb3967eac1fa

Aliases

arxiv: 1901.04533 · arxiv_version: 1901.04533v3 · doi: 10.48550/arxiv.1901.04533 · pith_short_12: G26NSWDZBNVI · pith_short_16: G26NSWDZBNVIME3O · pith_short_8: G26NSWDZ

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/G26NSWDZBNVIME3OEXSGYHAYE4 \
  | 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: 36bcd958790b6a86136e25e46c1c182702a3e3044d1bc35068b0cb3967eac1fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14493f933149d9e3975a19ee9d3a1b545fe85a3d94a3bff6767831fd51f9ba6e",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-01-14T19:40:40Z",
    "title_canon_sha256": "0014b8a3581c75bfee36b296b415842e8ef4c946221b9753d1b2f2025ff029b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04533",
    "kind": "arxiv",
    "version": 3
  }
}