Pith Number

pith:SQW2FUYZ

pith:2015:SQW2FUYZJPKSEYIS5SFOF66PLQ

not attested not anchored not stored refs pending

Quantifying uncertainty in state and parameter estimation

Jan Schumann-Bischoff, Stefan Luther, Ulrich Parlitz

arxiv:1507.02473 v1 · 2015-07-09 · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQW2FUYZJPKSEYIS5SFOF66PLQ}

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	2026-05-18T01:37:06.630652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

942da2d3194bd5226112ec8ae2fbcf5c0f277d3cebc05ed2d0edb32c5a54ffe6

Aliases

arxiv: 1507.02473 · arxiv_version: 1507.02473v1 · doi: 10.48550/arxiv.1507.02473 · pith_short_12: SQW2FUYZJPKS · pith_short_16: SQW2FUYZJPKSEYIS · pith_short_8: SQW2FUYZ

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/SQW2FUYZJPKSEYIS5SFOF66PLQ \
  | 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: 942da2d3194bd5226112ec8ae2fbcf5c0f277d3cebc05ed2d0edb32c5a54ffe6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fe31fc2ed238b779f344bd5a11977cb9ebdfb3a4dde5f7f2b7b9feeabd43176",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2015-07-09T12:07:32Z",
    "title_canon_sha256": "b80e64da42b995e97dc5d82660118b039535d23980cdb4309b9cfa3f90a181a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02473",
    "kind": "arxiv",
    "version": 1
  }
}