Pith Number

pith:7FZCVNRL

pith:2015:7FZCVNRL3QW4OAXAIKJ3WE6NSY

not attested not anchored not stored refs pending

On a projection-corrected component-by-component construction

Josef Dick, Peter Kritzer

arxiv:1502.04396 v2 · 2015-02-16 · 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{7FZCVNRL3QW4OAXAIKJ3WE6NSY}

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	2026-05-18T01:37:49.074110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9722ab62bdc2dc702e04293bb13cd961c92adc8e844124c28d8b7e80ff16f53

Aliases

arxiv: 1502.04396 · arxiv_version: 1502.04396v2 · doi: 10.48550/arxiv.1502.04396 · pith_short_12: 7FZCVNRL3QW4 · pith_short_16: 7FZCVNRL3QW4OAXA · pith_short_8: 7FZCVNRL

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/7FZCVNRL3QW4OAXAIKJ3WE6NSY \
  | 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: f9722ab62bdc2dc702e04293bb13cd961c92adc8e844124c28d8b7e80ff16f53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "764f6a0780cc637942feebd6c8822b0d668b4e22a8b476426f06d7f5041695a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-02-16T00:47:10Z",
    "title_canon_sha256": "53b12cd138c41f6c4b21b85f7c9c3febd0f3351c17af5341359950e2dbe82220"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04396",
    "kind": "arxiv",
    "version": 2
  }
}