Pith Number

pith:ZRWWTPKR

pith:2015:ZRWWTPKREKP2YOHUSOUGTJTHVZ

not attested not anchored not stored refs pending

Quantum Iterative Deepening with an application to the Halting problem

Andreas Wichert, Lu\'is Tarrataca

arxiv:1502.02030 v1 · 2015-02-06 · quant-ph · cs.FL · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZRWWTPKREKP2YOHUSOUGTJTHVZ}

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	2026-05-18T02:27:50.086195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc6d69bd51229fac38f493a869a667ae4f8e5dd7bc1505ff8b68636c45b5e054

Aliases

arxiv: 1502.02030 · arxiv_version: 1502.02030v1 · doi: 10.48550/arxiv.1502.02030 · pith_short_12: ZRWWTPKREKP2 · pith_short_16: ZRWWTPKREKP2YOHU · pith_short_8: ZRWWTPKR

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/ZRWWTPKREKP2YOHUSOUGTJTHVZ \
  | 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: cc6d69bd51229fac38f493a869a667ae4f8e5dd7bc1505ff8b68636c45b5e054

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b2bdf53f41720cf25f869976a26bc6ed7131899df7d25d9a051dc76543754ae",
    "cross_cats_sorted": [
      "cs.FL",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-02-06T17:28:02Z",
    "title_canon_sha256": "de4307c7a01b6e049c3eec2c94961d32f472a566bfda20a1932f5fda6a1e2cc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02030",
    "kind": "arxiv",
    "version": 1
  }
}