Pith Number

pith:INASBVGZ

pith:2015:INASBVGZJRNGJDXWU7FDS2DSSY

not attested not anchored not stored refs pending

$\hbar$ as a Physical Constant of Classical Optics and Electrodynamics

Claudine Ni Allen, Nicolas Doyon, Real Tremblay

arxiv:1502.06141 v2 · 2015-02-21 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{INASBVGZJRNGJDXWU7FDS2DSSY}

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	2026-05-18T02:17:21.497144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

434120d4d94c5a648ef6a7ca396872963a4fc0fdb82494678d2ba19866881d3b

Aliases

arxiv: 1502.06141 · arxiv_version: 1502.06141v2 · doi: 10.48550/arxiv.1502.06141 · pith_short_12: INASBVGZJRNG · pith_short_16: INASBVGZJRNGJDXW · pith_short_8: INASBVGZ

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/INASBVGZJRNGJDXWU7FDS2DSSY \
  | 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: 434120d4d94c5a648ef6a7ca396872963a4fc0fdb82494678d2ba19866881d3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b03fd86e0df16bd27ea4ef26db4ac41cb9f0dd9cae55b32ee6c3c9ee65378221",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-02-21T20:16:14Z",
    "title_canon_sha256": "b740458c057b30aaf39ec2a23dbcfd7e15b69bb72c56f62d9c5994b458c3d038"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06141",
    "kind": "arxiv",
    "version": 2
  }
}