Pith Number

pith:VCWQYFEK

pith:2006:VCWQYFEKFCXTABHAMGYN45PFKL

not attested not anchored not stored refs pending

How to hide a secret direction

E. Bagan, J. Calsamiglia, R. Demkowicz-Dobrzanski, R. Munoz-Tapia

arxiv:quant-ph/0606165 v1 · 2006-06-20 · 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{VCWQYFEKFCXTABHAMGYN45PFKL}

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	2026-07-04T15:03:25.573371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8ad0c148a28af3004e061b0de75e552f5c0f1630fed70e4456a9f8080769641

Aliases

arxiv: quant-ph/0606165 · arxiv_version: quant-ph/0606165v1 · doi: 10.48550/arxiv.quant-ph/0606165 · pith_short_12: VCWQYFEKFCXT · pith_short_16: VCWQYFEKFCXTABHA · pith_short_8: VCWQYFEK

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/VCWQYFEKFCXTABHAMGYN45PFKL \
  | 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: a8ad0c148a28af3004e061b0de75e552f5c0f1630fed70e4456a9f8080769641

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fb1f4fe4425469da73cb3e75fe5125f80991ea56c29a235cf01403e042b9c50",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-06-20T11:18:23Z",
    "title_canon_sha256": "7069121047a20b8d07e4b10fd35ce57fcf287e07017f3c0692a712bea2375052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0606165",
    "kind": "arxiv",
    "version": 1
  }
}