Pith Number

pith:VUPDT2DY

pith:2022:VUPDT2DY4EXLD7CI7UF3QETVN2

not attested not anchored not stored refs pending

Convergence Rate Analysis of Galerkin Approximation of Inverse Potential Problem

Bangti Jin, Qimeng Quan, Xiliang Lu, Zhi Zhou

arxiv:2203.04899 v2 · 2022-03-09 · math.NA · cs.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{VUPDT2DY4EXLD7CI7UF3QETVN2}

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	2026-07-05T05:26:39.124246Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad1e39e878e12eb1fc48fd0bb812756ead8b7becd0eb2e087170cfc1b4d32bc2

Aliases

arxiv: 2203.04899 · arxiv_version: 2203.04899v2 · doi: 10.48550/arxiv.2203.04899 · pith_short_12: VUPDT2DY4EXL · pith_short_16: VUPDT2DY4EXLD7CI · pith_short_8: VUPDT2DY

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/VUPDT2DY4EXLD7CI7UF3QETVN2 \
  | 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: ad1e39e878e12eb1fc48fd0bb812756ead8b7becd0eb2e087170cfc1b4d32bc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85a6837746a0a885707f777e5fad11e6e07c6f2a552208697e5f710848627ae5",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-03-09T17:22:24Z",
    "title_canon_sha256": "7fb2c06f9119d7c2754dfcca17cfbf99074408281da5e54dc492561929ccda54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.04899",
    "kind": "arxiv",
    "version": 2
  }
}