Pith Number

pith:QBTSNHRA

pith:2009:QBTSNHRAS446VUYDZUCHW3CDGK

not attested not anchored not stored refs pending

The relativistic quantum channel of communication through field quanta

Achim Kempf, Mathieu Cliche

arxiv:0908.3144 v2 · 2009-08-21 · quant-ph · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QBTSNHRAS446VUYDZUCHW3CDGK}

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	2026-05-18T03:23:58.058222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8067269e209739ead303cd047b6c4332adf0e585406581bb0f31b55fc7b0a4b6

Aliases

arxiv: 0908.3144 · arxiv_version: 0908.3144v2 · doi: 10.48550/arxiv.0908.3144 · pith_short_12: QBTSNHRAS446 · pith_short_16: QBTSNHRAS446VUYD · pith_short_8: QBTSNHRA

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/QBTSNHRAS446VUYDZUCHW3CDGK \
  | 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: 8067269e209739ead303cd047b6c4332adf0e585406581bb0f31b55fc7b0a4b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2afde2dd36dc3892b751be26da2ef435eaa2a430276f528b730d999a6dd12591",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-08-21T19:02:37Z",
    "title_canon_sha256": "892963eabf0b3a17e69f5c1e7a9039b0d98a52baadf165c034aba8dafed5ac03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3144",
    "kind": "arxiv",
    "version": 2
  }
}