Pith Number

pith:ALE77ARG

pith:2024:ALE77ARGH3D4WSLFHDZEKIBX47

not attested not anchored not stored refs pending

The RQR algorithm

Daan Camps, David S. Watkins, Raf Vandebril, Thomas Mach

arxiv:2411.17671 v2 · 2024-11-26 · 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{ALE77ARGH3D4WSLFHDZEKIBX47}

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	2026-07-05T10:54:39.793005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02c9ff82263ec7cb496538f2452037e7e41ddef6bf3a1831a8c5ecd5415dfca7

Aliases

arxiv: 2411.17671 · arxiv_version: 2411.17671v2 · doi: 10.48550/arxiv.2411.17671 · pith_short_12: ALE77ARGH3D4 · pith_short_16: ALE77ARGH3D4WSLF · pith_short_8: ALE77ARG

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/ALE77ARGH3D4WSLFHDZEKIBX47 \
  | 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: 02c9ff82263ec7cb496538f2452037e7e41ddef6bf3a1831a8c5ecd5415dfca7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c2b1e7b0164f30a83543180d8e1771b862f88dee760688a09b880768927b0ce",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-11-26T18:31:08Z",
    "title_canon_sha256": "8e54345c90468058025d54f772b2442fe9ca6ffcf293210d52fd5b3715d2da65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.17671",
    "kind": "arxiv",
    "version": 2
  }
}