Pith Number

pith:F7QNJPFU

pith:2018:F7QNJPFUUIKKKWMWAIBQUWILNU

not attested not anchored not stored refs pending

Tree-based tensor formats

Anthony Nouy, Antonio Falco, Wolfgang Hackbusch

arxiv:1810.01262 v2 · 2018-09-29 · 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{F7QNJPFUUIKKKWMWAIBQUWILNU}

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	2026-06-04T20:13:24.697814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fe0d4bcb4a214a5599602030a590b6d04d89906a2660b0992f7355013a28d9a

Aliases

arxiv: 1810.01262 · arxiv_version: 1810.01262v2 · doi: 10.48550/arxiv.1810.01262 · pith_short_12: F7QNJPFUUIKK · pith_short_16: F7QNJPFUUIKKKWMW · pith_short_8: F7QNJPFU

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/F7QNJPFUUIKKKWMWAIBQUWILNU \
  | 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: 2fe0d4bcb4a214a5599602030a590b6d04d89906a2660b0992f7355013a28d9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa3d2ac7973490b59d70b75e540183ab0e8b80d476e249966eb2ed91b5ce1f27",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-09-29T07:50:25Z",
    "title_canon_sha256": "21503b89fb522c2134e27af2ae63d58b15b53ebe162f9d016b017510e62eb342"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.01262",
    "kind": "arxiv",
    "version": 2
  }
}