Pith Number

pith:GO4BBBYS

pith:2017:GO4BBBYSJEM6XQJUCOWKDMCR7O

not attested not anchored not stored refs pending

Erasing the orbital angular momentum information of a photon

Andrew Forbes, Bienvenu Ndagano, Isaac Nape

arxiv:1702.06888 v1 · 2017-02-21 · quant-ph · 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{GO4BBBYSJEM6XQJUCOWKDMCR7O}

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	2026-05-18T00:43:26.595456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33b81087124919ebc13413aca1b051fbb512aa786e80f82a24db6722cc09b4d9

Aliases

arxiv: 1702.06888 · arxiv_version: 1702.06888v1 · doi: 10.48550/arxiv.1702.06888 · pith_short_12: GO4BBBYSJEM6 · pith_short_16: GO4BBBYSJEM6XQJU · pith_short_8: GO4BBBYS

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/GO4BBBYSJEM6XQJUCOWKDMCR7O \
  | 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: 33b81087124919ebc13413aca1b051fbb512aa786e80f82a24db6722cc09b4d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58576f62095cafb3f00593e7b6cb1183c4a1d58f4bab4a41df2f35252b0e1bf0",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-02-21T15:53:50Z",
    "title_canon_sha256": "1641ef0f20212d359e83188e8079f1b75a40e84486ae2b988c4e90143a953d31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06888",
    "kind": "arxiv",
    "version": 1
  }
}