Pith Number

pith:GS4LOX43

pith:2008:GS4LOX43FQRDYKRKGWVOHGCPNP

not attested not anchored not stored refs pending

Gradient Flows for Optimisation and Quantum Control: Foundations and Applications

G. Dirr, S.J. Glaser, T. Schulte-Herbrueggen, U. Helmke

arxiv:0802.4195 v2 · 2008-02-28 · quant-ph · math-ph · math.MP · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GS4LOX43FQRDYKRKGWVOHGCPNP}

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	2026-05-18T04:34:09.133471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34b8b75f9b2c223c2a2a35aae3984f6be2d6c3eb038879435175cb44a26501c9

Aliases

arxiv: 0802.4195 · arxiv_version: 0802.4195v2 · doi: 10.48550/arxiv.0802.4195 · pith_short_12: GS4LOX43FQRD · pith_short_16: GS4LOX43FQRDYKRK · pith_short_8: GS4LOX43

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/GS4LOX43FQRDYKRKGWVOHGCPNP \
  | 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: 34b8b75f9b2c223c2a2a35aae3984f6be2d6c3eb038879435175cb44a26501c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "803d649cafe5ef8c9844f92ee6a8ba70ebf1d30a76f8ec50fb96c746014d32b4",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-02-28T12:50:08Z",
    "title_canon_sha256": "7fe336630855bff02cdc88afa853af512349f7079197c57a2127f7c0a0f884a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.4195",
    "kind": "arxiv",
    "version": 2
  }
}