Pith Number

pith:OFOA6F3S

pith:2012:OFOA6F3S5WTA3I6XJPJKRDKF43

not attested not anchored not stored refs pending

Hubble and Planck scale limits on the determination of orbital angular momentum states of light

A. Sponselli, B. Thid\'e, F. Tamburini

arxiv:1201.3347 v1 · 2012-01-16 · physics.optics · gr-qc · 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{OFOA6F3S5WTA3I6XJPJKRDKF43}

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	2026-05-18T04:04:31.559390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

715c0f1772eda60da3d74bd2a88d45e6e32165dc66ba72e78538f20dcad829eb

Aliases

arxiv: 1201.3347 · arxiv_version: 1201.3347v1 · doi: 10.48550/arxiv.1201.3347 · pith_short_12: OFOA6F3S5WTA · pith_short_16: OFOA6F3S5WTA3I6X · pith_short_8: OFOA6F3S

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/OFOA6F3S5WTA3I6XJPJKRDKF43 \
  | 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: 715c0f1772eda60da3d74bd2a88d45e6e32165dc66ba72e78538f20dcad829eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a72b0718792e07186f8b32f42d22f3dc435601d3543a16e3a52bab39d4aa7b29",
    "cross_cats_sorted": [
      "gr-qc",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-01-16T19:41:54Z",
    "title_canon_sha256": "dc20f14a7993c7c72c2dc27b39605983d933c897e0c5852e8d28e703012634e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3347",
    "kind": "arxiv",
    "version": 1
  }
}