Pith Number

pith:6XO4EY7D

pith:2017:6XO4EY7DKBGXAMKP6ORDBCGPI5

not attested not anchored not stored refs pending

A matrix formulation of the Tau method for the numerical solution of non-linear problems

Amin Ghaderi, Kourosh Parand, Mehdi Delkhosh, Reza Pourgholi

arxiv:1708.06941 v1 · 2017-08-23 · 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{6XO4EY7DKBGXAMKP6ORDBCGPI5}

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	2026-05-18T00:36:48.836536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5ddc263e3504d70314ff3a23088cf477b7a0c286fc751879b22c93da20960b6

Aliases

arxiv: 1708.06941 · arxiv_version: 1708.06941v1 · doi: 10.48550/arxiv.1708.06941 · pith_short_12: 6XO4EY7DKBGX · pith_short_16: 6XO4EY7DKBGXAMKP · pith_short_8: 6XO4EY7D

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/6XO4EY7DKBGXAMKP6ORDBCGPI5 \
  | 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: f5ddc263e3504d70314ff3a23088cf477b7a0c286fc751879b22c93da20960b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fbcb87d1749b6762bbb0365f7581cfede33d8985bc43e9127f9ef8516d56a63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-08-23T10:04:23Z",
    "title_canon_sha256": "05a973e93ed22efdbc88e20046255f84ade5fcd2b36faed6548b22dd2cc202f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06941",
    "kind": "arxiv",
    "version": 1
  }
}