Pith Number

pith:UWC6WIP3

pith:2017:UWC6WIP3ZJ6T3IO7HDRT2PBMP5

not attested not anchored not stored refs pending

Measurement of the Planck constant at the National Institute of Standards and Technology from 2015 to 2017

A. Possolo, C.J. Williams, D.B. Newell, D. Haddad, F. Seifert, J.R. Pratt, L.S. Chao, S. Schlamminger

arxiv:1708.02473 v1 · 2017-08-08 · physics.ins-det · physics.class-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{UWC6WIP3ZJ6T3IO7HDRT2PBMP5}

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	2026-05-18T00:38:24.189014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a585eb21fbca7d3da1df38e33d3c2c7f61eb1eae631cc6c680997ebeab21912f

Aliases

arxiv: 1708.02473 · arxiv_version: 1708.02473v1 · doi: 10.48550/arxiv.1708.02473 · pith_short_12: UWC6WIP3ZJ6T · pith_short_16: UWC6WIP3ZJ6T3IO7 · pith_short_8: UWC6WIP3

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/UWC6WIP3ZJ6T3IO7HDRT2PBMP5 \
  | 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: a585eb21fbca7d3da1df38e33d3c2c7f61eb1eae631cc6c680997ebeab21912f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf219bfd644c331b9909a3a719f52030405b3b15150e0496ac8cc7af7c9e6306",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2017-08-08T13:14:31Z",
    "title_canon_sha256": "659d8be415a3420ad261953749146554d4fa4bf77e70ea22b8b381ef11dd4578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02473",
    "kind": "arxiv",
    "version": 1
  }
}