Pith Number

pith:R5CHXQ74

pith:2016:R5CHXQ7452XFIJSHWA3ZD3ZK3H

not attested not anchored not stored refs pending

Frames and numerical approximation

Ben Adcock, Daan Huybrechs

arxiv:1612.04464 v4 · 2016-12-14 · 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{R5CHXQ7452XFIJSHWA3ZD3ZK3H}

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	2026-05-18T00:01:30.688041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f447bc3fceeae542647b03791ef2ad9fd29a88bd486a50453bc0d2d9e3e5fd1

Aliases

arxiv: 1612.04464 · arxiv_version: 1612.04464v4 · doi: 10.48550/arxiv.1612.04464 · pith_short_12: R5CHXQ7452XF · pith_short_16: R5CHXQ7452XFIJSH · pith_short_8: R5CHXQ74

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/R5CHXQ7452XFIJSHWA3ZD3ZK3H \
  | 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: 8f447bc3fceeae542647b03791ef2ad9fd29a88bd486a50453bc0d2d9e3e5fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b31f8a0f8d3ab7b29a19f3fb5418c7be10a407ea3b0d6c753802ec0422f9ff6",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-12-14T02:49:06Z",
    "title_canon_sha256": "f5bb7e3d4ece2260c69fe3f6c395149a4e63f5c33c37b10a9af71ac37e4aa9da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04464",
    "kind": "arxiv",
    "version": 4
  }
}