Pith Number

pith:7QU4QUBM

pith:2008:7QU4QUBMPKXEIX3SNKCQQHCTQR

not attested not anchored not stored refs pending

Gate complexity using Dynamic Programming

Matthew R. James, Mile Gu, Srinivas Sridharan

arxiv:0807.0507 v1 · 2008-07-03 · 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{7QU4QUBMPKXEIX3SNKCQQHCTQR}

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	2026-05-18T04:34:38.228133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc29c8502c7aae445f726a85081c538460667a4adc6a633847bd61b98d0aeee0

Aliases

arxiv: 0807.0507 · arxiv_version: 0807.0507v1 · doi: 10.48550/arxiv.0807.0507 · pith_short_12: 7QU4QUBMPKXE · pith_short_16: 7QU4QUBMPKXEIX3S · pith_short_8: 7QU4QUBM

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/7QU4QUBMPKXEIX3SNKCQQHCTQR \
  | 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: fc29c8502c7aae445f726a85081c538460667a4adc6a633847bd61b98d0aeee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c85e8fe2573848c249ecec31ee81074997d7b9258eb50865eac1d1560b3009e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2008-07-03T09:04:24Z",
    "title_canon_sha256": "1f2330228ba3dccf3f19fbfdfc250322c8ea29f8c34442646d3001753f8b29a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.0507",
    "kind": "arxiv",
    "version": 1
  }
}