Pith Number

pith:BE4A2HBO

pith:2001:BE4A2HBOII4IC36OG6WPFMHHSY

not attested not anchored not stored refs pending

An example of the difference between quantum and classical random walks

Andrew M. Childs, Edward Farhi, Sam Gutmann

arxiv:quant-ph/0103020 v1 · 2001-03-06 · 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{BE4A2HBOII4IC36OG6WPFMHHSY}

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	2026-07-04T14:45:36.301003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09380d1c2e4238816fce37acf2b0e7960d7a0f737c46c926a81d322df873d3ff

Aliases

arxiv: quant-ph/0103020 · arxiv_version: quant-ph/0103020v1 · doi: 10.48550/arxiv.quant-ph/0103020 · pith_short_12: BE4A2HBOII4I · pith_short_16: BE4A2HBOII4IC36O · pith_short_8: BE4A2HBO

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/BE4A2HBOII4IC36OG6WPFMHHSY \
  | 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: 09380d1c2e4238816fce37acf2b0e7960d7a0f737c46c926a81d322df873d3ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25736022f1df0607454ce71363d663bddb625373bc41d140d7f8ad35757a7a62",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-03-06T00:04:06Z",
    "title_canon_sha256": "b295bddbae88cc107104b1b6bef915eb460edbc0659882a650dff3fa0304ed3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0103020",
    "kind": "arxiv",
    "version": 1
  }
}