Pith Number

pith:25EZIVYL

pith:2011:25EZIVYLBQIIBQFORUFVTA5HBG

not attested not anchored not stored refs pending

Multi-query quantum sums

2) ((1) Mathematics Department, (2) Mathematics Department, David A. Meyer (1), James Pommersheim (1, Reed), UCSD

arxiv:1107.1940 v1 · 2011-07-11 · quant-ph · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{25EZIVYLBQIIBQFORUFVTA5HBG}

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	2026-05-18T04:18:33.820746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d74994570b0c1080c0ae8d0b5983a7098b52fd42fed9501e6f2e1e87a3a244f2

Aliases

arxiv: 1107.1940 · arxiv_version: 1107.1940v1 · doi: 10.48550/arxiv.1107.1940 · pith_short_12: 25EZIVYLBQII · pith_short_16: 25EZIVYLBQIIBQFO · pith_short_8: 25EZIVYL

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/25EZIVYLBQIIBQFORUFVTA5HBG \
  | 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: d74994570b0c1080c0ae8d0b5983a7098b52fd42fed9501e6f2e1e87a3a244f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ff8ba489990c7f4a95d62da543458a98c888d4c43fd1295bd93a360c920e0a4",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-07-11T05:55:09Z",
    "title_canon_sha256": "0fbe0bfb6976b6e38fde60e74fb209f53f24ce42b0babf6225358f0fb8e1f870"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1940",
    "kind": "arxiv",
    "version": 1
  }
}