Pith Number

pith:RIJHP4QR

pith:2011:RIJHP4QR2FHYBXZVAPLGUHYFAR

not attested not anchored not stored refs pending

Heralded quantum entanglement between two crystals

Christoph Clausen, Felix Bussieres, Imam Usmani, Mikael Afzelius, Nicolas Gisin, Nicolas Sangouard

arxiv:1109.0440 v1 · 2011-09-02 · 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{RIJHP4QR2FHYBXZVAPLGUHYFAR}

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	2026-05-18T03:59:01.431603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a1277f211d14f80df3503d66a1f05045e6fce65f8e8e4b59a588c99081ab81d

Aliases

arxiv: 1109.0440 · arxiv_version: 1109.0440v1 · doi: 10.48550/arxiv.1109.0440 · pith_short_12: RIJHP4QR2FHY · pith_short_16: RIJHP4QR2FHYBXZV · pith_short_8: RIJHP4QR

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/RIJHP4QR2FHYBXZVAPLGUHYFAR \
  | 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: 8a1277f211d14f80df3503d66a1f05045e6fce65f8e8e4b59a588c99081ab81d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5606003bf6eb37bde63be95b11f29e62ce7807f4230909d2c85531d7c051bda0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-09-02T13:39:57Z",
    "title_canon_sha256": "1ca86546e48930279bfb9f713b8e42b348f7b16fc9b0d879a28f0bd4f1ab5eca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0440",
    "kind": "arxiv",
    "version": 1
  }
}