Pith Number

pith:PL3E5BOI

pith:2020:PL3E5BOIFCVN3ZXFDKDX4BBVDI

not attested not anchored not stored refs pending

Quantum computation and measurements from an exotic space-time R4

Klee Irwin, Marcelo. M. Amaral, Michel Planat, Raymond Aschheim

arxiv:2001.09091 v1 · 2020-01-22 · math.GT · 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{PL3E5BOIFCVN3ZXFDKDX4BBVDI}

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	2026-07-05T01:00:15.914694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7af64e85c828aadde6e51a877e04351a2f122d1222a34386976dec7b8f7ddd32

Aliases

arxiv: 2001.09091 · arxiv_version: 2001.09091v1 · doi: 10.48550/arxiv.2001.09091 · pith_short_12: PL3E5BOIFCVN · pith_short_16: PL3E5BOIFCVN3ZXF · pith_short_8: PL3E5BOI

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/PL3E5BOIFCVN3ZXFDKDX4BBVDI \
  | 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: 7af64e85c828aadde6e51a877e04351a2f122d1222a34386976dec7b8f7ddd32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30e218ff450a8f6bb0c054d125b852af65b229a9e5f312f78e32ae9055f9a69b",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2020-01-22T15:16:03Z",
    "title_canon_sha256": "5e316755dac57730307082e8099a07006f7414ae3d4f11a0d143b4aacc7d68cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.09091",
    "kind": "arxiv",
    "version": 1
  }
}