Pith Number

pith:2H7HMZKK

pith:2008:2H7HMZKKKEQGGEHQJAXU7WQHHP

not attested not anchored not stored refs pending

Control Paradigms for Quantum Engineering

Gajendran Kandasamy, Simon Devitt, Sonia Schirmer

arxiv:0805.2890 v1 · 2008-05-19 · quant-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{2H7HMZKKKEQGGEHQJAXU7WQHHP}

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	2026-05-18T00:58:48.564297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1fe76654a51206310f0482f4fda073be1b8e8edfecff9e5a91c470a1b510238

Aliases

arxiv: 0805.2890 · arxiv_version: 0805.2890v1 · doi: 10.48550/arxiv.0805.2890 · pith_short_12: 2H7HMZKKKEQG · pith_short_16: 2H7HMZKKKEQGGEHQ · pith_short_8: 2H7HMZKK

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/2H7HMZKKKEQGGEHQJAXU7WQHHP \
  | 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: d1fe76654a51206310f0482f4fda073be1b8e8edfecff9e5a91c470a1b510238

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8151943493bfedef5f3b009bf471bf56f584a36dc5c579a0390b3950b39c7747",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-05-19T15:51:10Z",
    "title_canon_sha256": "8e44ab35893b81947a3bce3300cc2c5abcf0cb2109ac0d41b8de5a3cd131a6aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.2890",
    "kind": "arxiv",
    "version": 1
  }
}