Pith Number

pith:BTC4UGHW

pith:2010:BTC4UGHWQIMBNZSC7I5PPCEW2O

not attested not anchored not stored refs pending

Delayed feedback control of fractional-order chaotic systems

Aleksandar Gjurchinovski, Trifce Sandev, Viktor Urumov

arxiv:1005.2899 v2 · 2010-05-17 · physics.gen-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTC4UGHWQIMBNZSC7I5PPCEW2O}

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	2026-05-18T04:18:46.267857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cc5ca18f6821816e642fa3af78896d3864639b6f34152cfd476e046bf694ca1

Aliases

arxiv: 1005.2899 · arxiv_version: 1005.2899v2 · doi: 10.48550/arxiv.1005.2899 · pith_short_12: BTC4UGHWQIMB · pith_short_16: BTC4UGHWQIMBNZSC · pith_short_8: BTC4UGHW

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/BTC4UGHWQIMBNZSC7I5PPCEW2O \
  | 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: 0cc5ca18f6821816e642fa3af78896d3864639b6f34152cfd476e046bf694ca1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f1a1cb8913d953e791267b73e5b2f5b2526dbef177770a17a3e9003a2b7a580",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2010-05-17T12:12:50Z",
    "title_canon_sha256": "01621f7aeaeecd8e2683331a269a0380739c669beb531e2e570879ecdd8f53ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.2899",
    "kind": "arxiv",
    "version": 2
  }
}