Pith Number

pith:Z7I4LJBB

pith:2014:Z7I4LJBBWS7LZGDGYYQ4WEL24V

not attested not anchored not stored refs pending

Gradient-Based Estimation of Uncertain Parameters for Elliptic Partial Differential Equations

Hans-Werner van Wyk, Jeff Borggaard

arxiv:1410.4749 v1 · 2014-10-17 · math.OC · 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{Z7I4LJBBWS7LZGDGYYQ4WEL24V}

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	2026-05-18T01:55:33.464664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfd1c5a421b4bebc9866c621cb117ae552043cade8913c03f2349e4ea4768990

Aliases

arxiv: 1410.4749 · arxiv_version: 1410.4749v1 · doi: 10.48550/arxiv.1410.4749 · pith_short_12: Z7I4LJBBWS7L · pith_short_16: Z7I4LJBBWS7LZGDG · pith_short_8: Z7I4LJBB

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/Z7I4LJBBWS7LZGDGYYQ4WEL24V \
  | 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: cfd1c5a421b4bebc9866c621cb117ae552043cade8913c03f2349e4ea4768990

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dfed12de3bd14ea8fa1e7ba8196a73f466f1acdd271d2f290a837f278e36f0c",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-10-17T14:50:42Z",
    "title_canon_sha256": "ec41b1f89c76f7b00722df83a93afa9812eb45d4fc66f8f1ae86050776a463cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.4749",
    "kind": "arxiv",
    "version": 1
  }
}