Pith Number

pith:F4AYYVXX

pith:2011:F4AYYVXX36ECQ2GTSQEWXJCO2Y

not attested not anchored not stored refs pending

Does the measured value of the Planck constant depend on the energy of measurements?

Enrico Massa, Giovanni Mana, Michael Jentschel

arxiv:1110.0677 v1 · 2011-10-02 · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F4AYYVXX36ECQ2GTSQEWXJCO2Y}

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	2026-05-18T02:21:35.522383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f018c56f7df882868d394096ba44ed62f2b4e644965a181b82d7e88121b452c

Aliases

arxiv: 1110.0677 · arxiv_version: 1110.0677v1 · doi: 10.48550/arxiv.1110.0677 · pith_short_12: F4AYYVXX36EC · pith_short_16: F4AYYVXX36ECQ2GT · pith_short_8: F4AYYVXX

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/F4AYYVXX36ECQ2GTSQEWXJCO2Y \
  | 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: 2f018c56f7df882868d394096ba44ed62f2b4e644965a181b82d7e88121b452c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6d98acbd6604f36a6ae8ea42c2995d8d3580ea82a5fae0255a11d1ff8c07777",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2011-10-02T20:50:42Z",
    "title_canon_sha256": "a15f8023c25b1033beca47d083e8bb31fafbf24e1200f01833ce4b133ad4d962"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.0677",
    "kind": "arxiv",
    "version": 1
  }
}