Pith Number

pith:WF4PBVFC

pith:2008:WF4PBVFCHS2BK7ED6AHI4CZXAH

not attested not anchored not stored refs pending

Entanglement and the geometry of two qubits

J. E. Avron, O. Kenneth

arxiv:0807.0212 v2 · 2008-07-01 · 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{WF4PBVFCHS2BK7ED6AHI4CZXAH}

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	2026-05-18T02:47:16.480127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b178f0d4a23cb4157c83f00e8e0b3701f5e96ea463b2b2efbc35e138e210d39c

Aliases

arxiv: 0807.0212 · arxiv_version: 0807.0212v2 · doi: 10.48550/arxiv.0807.0212 · pith_short_12: WF4PBVFCHS2B · pith_short_16: WF4PBVFCHS2BK7ED · pith_short_8: WF4PBVFC

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/WF4PBVFCHS2BK7ED6AHI4CZXAH \
  | 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: b178f0d4a23cb4157c83f00e8e0b3701f5e96ea463b2b2efbc35e138e210d39c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1a3eb0b708d4b7c81360d64e5fb3a0439fe9c35f1bd878d135b4c76ff61dfeb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-07-01T18:25:05Z",
    "title_canon_sha256": "d753ed279cbe5af273471cfa5c4aa2bd4279da8e90b6d4ea648fcf0e9fb84849"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.0212",
    "kind": "arxiv",
    "version": 2
  }
}