Pith Number

pith:GHS5L5PX

pith:2017:GHS5L5PXHFXRI3SHJ4HCVAZYBN

not attested not anchored not stored refs pending

Numerical homogenization of elliptic PDEs with similar coefficients

Axel M{\aa}lqvist, Fredrik Hellman

arxiv:1703.08857 v2 · 2017-03-26 · 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{GHS5L5PXHFXRI3SHJ4HCVAZYBN}

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	2026-05-18T00:14:22.711397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31e5d5f5f7396f146e474f0e2a83380b478d1ce61fbecdcbdc21c35a4a8d6471

Aliases

arxiv: 1703.08857 · arxiv_version: 1703.08857v2 · doi: 10.48550/arxiv.1703.08857 · pith_short_12: GHS5L5PXHFXR · pith_short_16: GHS5L5PXHFXRI3SH · pith_short_8: GHS5L5PX

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/GHS5L5PXHFXRI3SHJ4HCVAZYBN \
  | 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: 31e5d5f5f7396f146e474f0e2a83380b478d1ce61fbecdcbdc21c35a4a8d6471

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee64e225907a9ae1e5b2ed0425c33517bad3d5149c6b04fd17509703f1e04e9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-03-26T17:57:33Z",
    "title_canon_sha256": "cb2367af926e756091ee8b1dcfc4ff1f7b819bed22d0e02bf768997ec1a449e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08857",
    "kind": "arxiv",
    "version": 2
  }
}