Pith Number

pith:AHSQFZGA

pith:2009:AHSQFZGAU3LUBRWKNQHGTEK3GT

not attested not anchored not stored refs pending

Synchronous Quantum Memories with Time-symmetric Pulses

M. D. Reid, P. D. Drummond, Q. Y. He

arxiv:0901.2956 v1 · 2009-01-19 · 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{AHSQFZGAU3LUBRWKNQHGTEK3GT}

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	2026-05-18T02:52:23.979063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01e502e4c0a6d740c6ca6c0e69915b34c4ba524430fbc383ea66fda0d1c9b5ce

Aliases

arxiv: 0901.2956 · arxiv_version: 0901.2956v1 · doi: 10.48550/arxiv.0901.2956 · pith_short_12: AHSQFZGAU3LU · pith_short_16: AHSQFZGAU3LUBRWK · pith_short_8: AHSQFZGA

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/AHSQFZGAU3LUBRWKNQHGTEK3GT \
  | 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: 01e502e4c0a6d740c6ca6c0e69915b34c4ba524430fbc383ea66fda0d1c9b5ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02255e5de475c1fba9797bdfcc54931df06563c84bbfde586d4210e4f08f699c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-01-19T23:45:33Z",
    "title_canon_sha256": "d1e365358a0b819ba033e4fe8d6c5efcf18d9c51bb09c5303a7bdf7db7c6c202"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2956",
    "kind": "arxiv",
    "version": 1
  }
}