Pith Number

pith:ZVJI6EYH

pith:2015:ZVJI6EYHL2FK54BWGBFRMOFOO2

not attested not anchored not stored refs pending

Practical quantum metrology with large precision gains in the low photon number regime

A. J. Hayes, J. A. Dunningham, J. P. Cooling, P. A. Knott, T. J. Proctor

arxiv:1505.04011 v3 · 2015-05-15 · 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{ZVJI6EYHL2FK54BWGBFRMOFOO2}

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	2026-05-18T01:16:35.042079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd528f13075e8aaef036304b1638ae76b5c74605b7bbf48ed8b7319da92f055c

Aliases

arxiv: 1505.04011 · arxiv_version: 1505.04011v3 · doi: 10.48550/arxiv.1505.04011 · pith_short_12: ZVJI6EYHL2FK · pith_short_16: ZVJI6EYHL2FK54BW · pith_short_8: ZVJI6EYH

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/ZVJI6EYHL2FK54BWGBFRMOFOO2 \
  | 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: cd528f13075e8aaef036304b1638ae76b5c74605b7bbf48ed8b7319da92f055c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a56dc2a93d7f45b2e889d2a841dafb89e02f517e8688397da09ddc7bfbdb2f7e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-05-15T10:19:28Z",
    "title_canon_sha256": "7162a3a456efff463ae5024cac3086ae42de0f53ef7d00d83dd35fe8bbe5d293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04011",
    "kind": "arxiv",
    "version": 3
  }
}