Pith Number

pith:H7QD5RTO

pith:2012:H7QD5RTOQONBEWR3RSURQC57IJ

not attested not anchored not stored refs pending

Information communicated by entangled photon pairs

Stephen M. Barnett, Thomas Brougham

arxiv:1203.1537 v1 · 2012-03-07 · 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{H7QD5RTOQONBEWR3RSURQC57IJ}

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	2026-05-18T01:58:13.618617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fe03ec66e839a125a3b8ca9180bbf427433add7bf88b0b51e178f19c4a1b08e

Aliases

arxiv: 1203.1537 · arxiv_version: 1203.1537v1 · doi: 10.48550/arxiv.1203.1537 · pith_short_12: H7QD5RTOQONB · pith_short_16: H7QD5RTOQONBEWR3 · pith_short_8: H7QD5RTO

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/H7QD5RTOQONBEWR3RSURQC57IJ \
  | 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: 3fe03ec66e839a125a3b8ca9180bbf427433add7bf88b0b51e178f19c4a1b08e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a87b26f4f503474cb515f454f760d463440bc3cae3f77c1e08fd04b9dbf3a73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-03-07T16:50:12Z",
    "title_canon_sha256": "4796dfa60a96ae15f88bd88894331444cc062efb78d3de1663dac264d57980af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1537",
    "kind": "arxiv",
    "version": 1
  }
}