Pith Number

pith:NO6RRJ7D

pith:2003:NO6RRJ7D4WP7OHIUTXTDWWGEXD

not attested not anchored not stored refs pending

Classical and quantum communication without a shared reference frame

R. W. Spekkens, Stephen D. Bartlett, Terry Rudolph

arxiv:quant-ph/0302111 v3 · 2003-02-14 · 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{NO6RRJ7D4WP7OHIUTXTDWWGEXD}

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	2026-07-04T14:46:07.405851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bbd18a7e3e59ff71d149de63b58c4b8e4ddf728694886370cbd357c313f1ef4

Aliases

arxiv: quant-ph/0302111 · arxiv_version: quant-ph/0302111v3 · doi: 10.48550/arxiv.quant-ph/0302111 · pith_short_12: NO6RRJ7D4WP7 · pith_short_16: NO6RRJ7D4WP7OHIU · pith_short_8: NO6RRJ7D

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/NO6RRJ7D4WP7OHIUTXTDWWGEXD \
  | 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: 6bbd18a7e3e59ff71d149de63b58c4b8e4ddf728694886370cbd357c313f1ef4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3afd88ab037efc5100abbf6d757c709113227c2344d7832cd2aa578622dc2244",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-02-14T00:23:51Z",
    "title_canon_sha256": "c46d431df1d3ff32146672b65fb6bc5298ebe169099866382661d6ab7223b398"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0302111",
    "kind": "arxiv",
    "version": 3
  }
}