Pith Number

pith:I26JR5OA

pith:2004:I26JR5OATT4GHB3TGXG6EMOFWY

not attested not anchored not stored refs pending

Coins Make Quantum Walks Faster

Alexander Rivosh, Andris Ambainis, Julia Kempe

arxiv:quant-ph/0402107 v1 · 2004-02-16 · quant-ph · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I26JR5OATT4GHB3TGXG6EMOFWY}

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	2026-07-04T14:48:38.739734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46bc98f5c09cf863877335cde231c5b639192f81ea0abb00a673bda2c729f7be

Aliases

arxiv: quant-ph/0402107 · arxiv_version: quant-ph/0402107v1 · doi: 10.48550/arxiv.quant-ph/0402107 · pith_short_12: I26JR5OATT4G · pith_short_16: I26JR5OATT4GHB3T · pith_short_8: I26JR5OA

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/I26JR5OATT4GHB3TGXG6EMOFWY \
  | 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: 46bc98f5c09cf863877335cde231c5b639192f81ea0abb00a673bda2c729f7be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a22945064a9620d865c7b37bb72f8728e5e36d292619f97be4cbe636ac49de1",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-02-16T23:32:23Z",
    "title_canon_sha256": "f2923e8fabf9f3ca8095ffac4ef9f479094b210c30ff1eb88f56d91092e36c71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0402107",
    "kind": "arxiv",
    "version": 1
  }
}