Pith Number

pith:EHWM7F5N

pith:2016:EHWM7F5NCQILXYE5S57HKY2VHJ

not attested not anchored not stored refs pending

A novel discrete variational derivative method using "average-difference methods"

Daisuke Furihata, Shun Sato, Takayasu Matsuo

arxiv:1605.04793 v2 · 2016-05-16 · 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{EHWM7F5NCQILXYE5S57HKY2VHJ}

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	2026-05-18T01:10:59.028651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21eccf97ad1410bbe09d977e7563553a76e15e0223d80727fb270e29409e0998

Aliases

arxiv: 1605.04793 · arxiv_version: 1605.04793v2 · doi: 10.48550/arxiv.1605.04793 · pith_short_12: EHWM7F5NCQIL · pith_short_16: EHWM7F5NCQILXYE5 · pith_short_8: EHWM7F5N

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/EHWM7F5NCQILXYE5S57HKY2VHJ \
  | 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: 21eccf97ad1410bbe09d977e7563553a76e15e0223d80727fb270e29409e0998

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a982f1f2b691175186293d80d9c0ad7450f850819babf39fe8c13ef5c9645f28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-05-16T15:03:51Z",
    "title_canon_sha256": "9cf1da99e1dcd19b87bae65d6dd27ce623e8f70cb3b30080ee6348b4ab26fc0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.04793",
    "kind": "arxiv",
    "version": 2
  }
}