Pith Number

pith:HSFGG2J3

pith:2016:HSFGG2J3RMQ3Y3D3Z7C2Z4RVCO

not attested not anchored not stored refs pending

Optimal Quantum Metrology of Distant Black Bodies

Earl T. Campbell, Mark E. Pearce, Pieter Kok

arxiv:1612.04828 v2 · 2016-12-14 · 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{HSFGG2J3RMQ3Y3D3Z7C2Z4RVCO}

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	2026-05-18T00:39:28.822700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c8a63693b8b21bc6c7bcfc5acf23513b2e3fc79114a4ad86f5f8d32eb1601df

Aliases

arxiv: 1612.04828 · arxiv_version: 1612.04828v2 · doi: 10.48550/arxiv.1612.04828 · pith_short_12: HSFGG2J3RMQ3 · pith_short_16: HSFGG2J3RMQ3Y3D3 · pith_short_8: HSFGG2J3

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/HSFGG2J3RMQ3Y3D3Z7C2Z4RVCO \
  | 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: 3c8a63693b8b21bc6c7bcfc5acf23513b2e3fc79114a4ad86f5f8d32eb1601df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb739a61dc4ed1ad41a99f602b0d3406dd246e9af3c7525519e7fb86c76eff97",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-12-14T21:00:05Z",
    "title_canon_sha256": "1478557026c79ad89303f481a70029a264bf533755cfb1186d4aec0ab31356b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04828",
    "kind": "arxiv",
    "version": 2
  }
}