Pith Number

pith:R6F77RN5

pith:2017:R6F77RN5QKGPXGOHAMN5YMVDKI

not attested not anchored not stored refs pending

Cryptographic quantum metrology

Chiara Macchiavello, Lorenzo Maccone, Zixin Huang

arxiv:1706.03894 v3 · 2017-06-13 · 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{R6F77RN5QKGPXGOHAMN5YMVDKI}

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	2026-05-17T23:53:33.895115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f8bffc5bd828cfb99c7031bdc32a3522d950385e0d58c3273b3d0cb571a9a3a

Aliases

arxiv: 1706.03894 · arxiv_version: 1706.03894v3 · doi: 10.48550/arxiv.1706.03894 · pith_short_12: R6F77RN5QKGP · pith_short_16: R6F77RN5QKGPXGOH · pith_short_8: R6F77RN5

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/R6F77RN5QKGPXGOHAMN5YMVDKI \
  | 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: 8f8bffc5bd828cfb99c7031bdc32a3522d950385e0d58c3273b3d0cb571a9a3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef821edeb25e34d59c31280cde6d0b0e3b3636cc3a36663aedc08b37f1a9608f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-06-13T02:55:03Z",
    "title_canon_sha256": "1c8a5d554d25da52255b1c049713bf67d95a59e7bbb0cd5bc0851e57f220471e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.03894",
    "kind": "arxiv",
    "version": 3
  }
}