Pith Number

pith:ZB5FVWRE

pith:2021:ZB5FVWREZHCAQFWDWRRBPLPR44

not attested not anchored not stored refs pending

Ultrasensitive optical magnetometry at the microscale

Christopher L. Humphreys, Eoin Sheridan, George A. Brawley, Halina Rubinsztein-Dunlop, Joachim Knittel, Stefan Forstner, Warwick P. Bowen

arxiv:2104.05179 v1 · 2021-04-12 · physics.optics · physics.app-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{ZB5FVWREZHCAQFWDWRRBPLPR44}

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	2026-07-05T02:31:09.112086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c87a5ada24c9c40816c3b46217adf1e70c25ae5f8ce3528120fc2b184bd7fd1c

Aliases

arxiv: 2104.05179 · arxiv_version: 2104.05179v1 · doi: 10.48550/arxiv.2104.05179 · pith_short_12: ZB5FVWREZHCA · pith_short_16: ZB5FVWREZHCAQFWD · pith_short_8: ZB5FVWRE

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/ZB5FVWREZHCAQFWDWRRBPLPR44 \
  | 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: c87a5ada24c9c40816c3b46217adf1e70c25ae5f8ce3528120fc2b184bd7fd1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c28beda72f29efc33d0eefdf1a58c24ed5867c25f58c93c4f4ca17a8abb33e54",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-04-12T03:25:31Z",
    "title_canon_sha256": "b74a4b09109c64a17647a19d70281e05344f11b6e8cd3e9ee3457276111b13d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05179",
    "kind": "arxiv",
    "version": 1
  }
}