Pith Number

pith:RJ2ZLTFX

pith:2013:RJ2ZLTFXB44RVAKWBKDJ3JDC3N

not attested not anchored not stored refs pending

Nonuniform sampling and multiscale computation

Bj\"orn Engquist, Christina Frederick

arxiv:1309.2349 v2 · 2013-09-10 · 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{RJ2ZLTFXB44RVAKWBKDJ3JDC3N}

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	2026-05-18T02:44:31.997916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a7595ccb70f391a81560a869da462db5757083f82527deb0a88557d87d96ec5

Aliases

arxiv: 1309.2349 · arxiv_version: 1309.2349v2 · doi: 10.48550/arxiv.1309.2349 · pith_short_12: RJ2ZLTFXB44R · pith_short_16: RJ2ZLTFXB44RVAKW · pith_short_8: RJ2ZLTFX

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/RJ2ZLTFXB44RVAKWBKDJ3JDC3N \
  | 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: 8a7595ccb70f391a81560a869da462db5757083f82527deb0a88557d87d96ec5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02a4e899ef94313a03ec98bd619f5b3ce09fff5d218dd965aeae35bbae592ca4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-09-10T00:22:32Z",
    "title_canon_sha256": "301b9b2215dab724958ad7fc9fd1dc48efefbb8de8cb593520af3ce8df943d25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2349",
    "kind": "arxiv",
    "version": 2
  }
}