Pith Number

pith:7BHT3DFO

pith:2007:7BHT3DFOMVSTUEEVCQUFSZ7XAE

not attested not anchored not stored refs pending

Storage and Retrieval of a Squeezed Vacuum

Akira Furusawa, Daisuke Akamatsu, Kazuhito Honda, Keiichirou Akiba, Manabu Arikawa, Mikio Kozuma, Satoshi Nagatsuka, Takahito Tanimura, Yoshihiko Yokoi

arxiv:0709.1785 v2 · 2007-09-12 · 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{7BHT3DFOMVSTUEEVCQUFSZ7XAE}

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	2026-05-18T02:16:11.372669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f84f3d8cae65653a109514285967f701229fc7c108f2708b426f4b7c6b2897df

Aliases

arxiv: 0709.1785 · arxiv_version: 0709.1785v2 · doi: 10.48550/arxiv.0709.1785 · pith_short_12: 7BHT3DFOMVST · pith_short_16: 7BHT3DFOMVSTUEEV · pith_short_8: 7BHT3DFO

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/7BHT3DFOMVSTUEEVCQUFSZ7XAE \
  | 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: f84f3d8cae65653a109514285967f701229fc7c108f2708b426f4b7c6b2897df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "797126dd0b0770b67ef5ba55039ccdffc7ef5ed9a747c8874cdcf105d2b09d21",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-09-12T10:05:00Z",
    "title_canon_sha256": "ffed2e9ab5bf149c97eac8b62abbd7eb1acb86dd552722579babf868d20a8bfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.1785",
    "kind": "arxiv",
    "version": 2
  }
}