Pith Number

pith:3LNS52WT

pith:2021:3LNS52WTQHFRF6G3OS5SPQXOMT

not attested not anchored not stored refs pending

Non-iterative domain decomposition for the Helmholtz equation using the method of difference potentials

Eli Turkel, Evan North, Semyon Tsynkov

arxiv:2103.12172 v1 · 2021-03-22 · 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{3LNS52WTQHFRF6G3OS5SPQXOMT}

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	2026-07-05T02:25:43.420580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dadb2eead381cb12f8db74bb27c2ee64efa7845c6addb226c7bed9f76266908c

Aliases

arxiv: 2103.12172 · arxiv_version: 2103.12172v1 · doi: 10.48550/arxiv.2103.12172 · pith_short_12: 3LNS52WTQHFR · pith_short_16: 3LNS52WTQHFRF6G3 · pith_short_8: 3LNS52WT

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/3LNS52WTQHFRF6G3OS5SPQXOMT \
  | 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: dadb2eead381cb12f8db74bb27c2ee64efa7845c6addb226c7bed9f76266908c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "766f687e63a55d984ae16ef256299420d91e7e04582a93bfdf21f405ddf26e03",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-03-22T20:42:46Z",
    "title_canon_sha256": "aebf4a7024e14a3461428eca9ac25599f383f86bc0fc8012597a19e1d2c52542"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.12172",
    "kind": "arxiv",
    "version": 1
  }
}