Pith Number

pith:7LTEOGRB

pith:2018:7LTEOGRB5EDSVXXHOUSGZECBFT

not attested not anchored not stored refs pending

The iisignature library: efficient calculation of iterated-integral signatures and log signatures

Benjamin Graham, Jeremy Reizenstein

arxiv:1802.08252 v1 · 2018-02-22 · cs.DS · cs.MS · math.RA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LTEOGRB5EDSVXXHOUSGZECBFT}

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.

Cited by

1 paper in Pith

The Volterra signature

Receipt and verification

First computed	2026-05-18T00:22:44.066156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fae6471a21e9072adee775246c90412ce2122bf21d73021ece2784c1caa4308c

Aliases

arxiv: 1802.08252 · arxiv_version: 1802.08252v1 · doi: 10.48550/arxiv.1802.08252 · pith_short_12: 7LTEOGRB5EDS · pith_short_16: 7LTEOGRB5EDSVXXH · pith_short_8: 7LTEOGRB

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/7LTEOGRB5EDSVXXHOUSGZECBFT \
  | 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: fae6471a21e9072adee775246c90412ce2122bf21d73021ece2784c1caa4308c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c9874f51845ea429cf85ec6b596aac78a3b7292151cb4a2701c9bc9ebecaffe",
    "cross_cats_sorted": [
      "cs.MS",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-02-22T14:29:30Z",
    "title_canon_sha256": "dc015641414aa64df2d95d141a7cc1f8a0e23161bf5e343c1555b5430c03caf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08252",
    "kind": "arxiv",
    "version": 1
  }
}