Pith Number

pith:3UNY6RBV

pith:2003:3UNY6RBVFWWXLH44FV2AZ75WEQ

not attested not anchored not stored refs pending

Probabilistic cloning and signalling

Anirban Roy, Guruprasad Kar, Samir Kunkri, Sibasish Ghosh

arxiv:quant-ph/0312045 v2 · 2003-12-04 · 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{3UNY6RBVFWWXLH44FV2AZ75WEQ}

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	2026-07-04T14:46:28.465648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd1b8f44352dad759f9c2d740cffb6242167b2d714f9be088101a186e7f389b5

Aliases

arxiv: quant-ph/0312045 · arxiv_version: quant-ph/0312045v2 · doi: 10.48550/arxiv.quant-ph/0312045 · pith_short_12: 3UNY6RBVFWWX · pith_short_16: 3UNY6RBVFWWXLH44 · pith_short_8: 3UNY6RBV

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/3UNY6RBVFWWXLH44FV2AZ75WEQ \
  | 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: dd1b8f44352dad759f9c2d740cffb6242167b2d714f9be088101a186e7f389b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5fd36dda82f3cdc81aaf367068e0b6da21492dbfdecf57e4a32ca45756f32ed",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-12-04T19:23:42Z",
    "title_canon_sha256": "abc70668d87a7ce4fb93e3af9f6acac6cb4d79eb3ce250a82a34375f76146442"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0312045",
    "kind": "arxiv",
    "version": 2
  }
}