Pith Number

pith:23PTZU7E

pith:2018:23PTZU7EYQC6NEZSZAFBVCFWDV

not attested not anchored not stored refs pending

Compressed Optimization of Device Architectures (CODA) for semiconductor quantum devices

Adam Frees, Daniel R. Ward, John King Gamble, M. A. Eriksson, Mark Friesen, Robin Blume-Kohout, S. N. Coppersmith

arxiv:1806.04318 v2 · 2018-06-12 · cond-mat.mes-hall

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

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	2026-05-17T23:52:07.543204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6df3cd3e4c405e69332c80a1a88b61d722d9dbe9e42a26e3b3e417d040722e5

Aliases

arxiv: 1806.04318 · arxiv_version: 1806.04318v2 · doi: 10.48550/arxiv.1806.04318 · pith_short_12: 23PTZU7EYQC6 · pith_short_16: 23PTZU7EYQC6NEZS · pith_short_8: 23PTZU7E

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/23PTZU7EYQC6NEZSZAFBVCFWDV \
  | 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: d6df3cd3e4c405e69332c80a1a88b61d722d9dbe9e42a26e3b3e417d040722e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfc4976d88b22972f2369d89f0a2428e5420d06287f10bcc574b691a9051e672",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2018-06-12T04:04:09Z",
    "title_canon_sha256": "c15aeb7ea6eec03df15bee5d049c80f6fda9e47d9dc9ce9816277ef3598765d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04318",
    "kind": "arxiv",
    "version": 2
  }
}