Pith Number

pith:MQZGZJU7

pith:2017:MQZGZJU7PC2DM6I43FMK3MI62F

not attested not anchored not stored refs pending

Comment on half-integer quantum numbers for the total angular momentum of photons in light beams with finite lateral extensions

Manfred F\"ahnle

arxiv:1703.05821 v1 · 2017-03-16 · cond-mat.other · 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{MQZGZJU7PC2DM6I43FMK3MI62F}

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	2026-05-18T00:48:31.996111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64326ca69f78b436791cd958adb11ed16ecfc7fda97a56fb5b8b018cf35d7846

Aliases

arxiv: 1703.05821 · arxiv_version: 1703.05821v1 · doi: 10.48550/arxiv.1703.05821 · pith_short_12: MQZGZJU7PC2D · pith_short_16: MQZGZJU7PC2DM6I4 · pith_short_8: MQZGZJU7

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/MQZGZJU7PC2DM6I43FMK3MI62F \
  | 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: 64326ca69f78b436791cd958adb11ed16ecfc7fda97a56fb5b8b018cf35d7846

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec6a636cd6dcbc73c170a1876462c7ece8bf0702665a3d895409fa9735c6eaff",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2017-03-16T21:09:35Z",
    "title_canon_sha256": "6cc0baa2ef726138891df2466950424ebbf682bc5128049e452e9801a2ce9b25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05821",
    "kind": "arxiv",
    "version": 1
  }
}