Pith Number

pith:D5RPBFOR

pith:2009:D5RPBFORPPP7QR5GHUQWHFEVF5

not attested not anchored not stored refs pending

Effects of photon losses on phase estimation near the Heisenberg limit using coherent light and squeezed vacuum

Holger F. Hofmann, Takafumi Ono

arxiv:0910.3727 v1 · 2009-10-20 · 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{D5RPBFORPPP7QR5GHUQWHFEVF5}

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	2026-05-18T02:11:14.061232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f62f095d17bdff847a63d216394952f6ab327dbaea2ca50cdce97009bc040e6

Aliases

arxiv: 0910.3727 · arxiv_version: 0910.3727v1 · doi: 10.48550/arxiv.0910.3727 · pith_short_12: D5RPBFORPPP7 · pith_short_16: D5RPBFORPPP7QR5G · pith_short_8: D5RPBFOR

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/D5RPBFORPPP7QR5GHUQWHFEVF5 \
  | 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: 1f62f095d17bdff847a63d216394952f6ab327dbaea2ca50cdce97009bc040e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdbb743d39bf7e8c8131e7da543bbfa0215b85e2e433643edfb10d2fd966efe0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-10-20T01:29:42Z",
    "title_canon_sha256": "86a0e7f7105e09dd9ceba37efbdb593e2c21802482d94b49150b8210adf3c129"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3727",
    "kind": "arxiv",
    "version": 1
  }
}