Pith Number

pith:3R4N3V4P

pith:2009:3R4N3V4PT3VXVRYUQEPDI26QG6

not attested not anchored not stored refs pending

Could one make a diamond-based quantum computer?

A H Harker, A Marshall Stoneham, Gavin W Morley

arxiv:0904.4895 v1 · 2009-04-30 · 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{3R4N3V4PT3VXVRYUQEPDI26QG6}

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	2026-05-18T04:42:02.036062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc78ddd78f9eeb7ac714811e346bd037b3f3417173afe08420fd4ea5c295af4e

Aliases

arxiv: 0904.4895 · arxiv_version: 0904.4895v1 · doi: 10.48550/arxiv.0904.4895 · pith_short_12: 3R4N3V4PT3VX · pith_short_16: 3R4N3V4PT3VXVRYU · pith_short_8: 3R4N3V4P

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/3R4N3V4PT3VXVRYUQEPDI26QG6 \
  | 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: dc78ddd78f9eeb7ac714811e346bd037b3f3417173afe08420fd4ea5c295af4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec076b41872ec3c06306b6ad7eb975bd70519c240ae7b236808a91e57338f49e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-04-30T17:26:09Z",
    "title_canon_sha256": "d31ac5a011c1863f8e8da9c9cbe65ab40fe87d9bf538013bb3c2e2874f125b12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4895",
    "kind": "arxiv",
    "version": 1
  }
}