Pith Number

pith:OHFTV6QF

pith:2013:OHFTV6QFR44J5HU65Z7BFRHR22

not attested not anchored not stored refs pending

Data completion and stochastic algorithms for PDE inversion problems with many measurements

Farbod Roosta-Khorasani, Kees van den Doel, Uri Ascher

arxiv:1312.0707 v2 · 2013-12-03 · cs.NA · 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{OHFTV6QFR44J5HU65Z7BFRHR22}

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	2026-05-18T02:32:30.992274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71cb3afa058f389e9e9eee7e12c4f1d6bd92caa691cfa462123076430f8b42e6

Aliases

arxiv: 1312.0707 · arxiv_version: 1312.0707v2 · doi: 10.48550/arxiv.1312.0707 · pith_short_12: OHFTV6QFR44J · pith_short_16: OHFTV6QFR44J5HU6 · pith_short_8: OHFTV6QF

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/OHFTV6QFR44J5HU65Z7BFRHR22 \
  | 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: 71cb3afa058f389e9e9eee7e12c4f1d6bd92caa691cfa462123076430f8b42e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38cd6b5ce17aad9c5d0c8da0349fb344ea89d184505af521ee3ba73c40f9ccd2",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2013-12-03T06:05:01Z",
    "title_canon_sha256": "b8aa3cdc7bc2eaebaaa655a64e834bf4c69b228212d69243a46aeccbac2772be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.0707",
    "kind": "arxiv",
    "version": 2
  }
}