Pith Number

pith:YYWWCIXT

pith:2003:YYWWCIXTAHY5ZV5LDH7R57MDBG

not attested not anchored not stored refs pending

Orbital angular momentum of the down converted photons

Bo Yu, Guang-Can Guo, Guo-Ping Guo, Jian Li, Xi-Feng Ren

arxiv:quant-ph/0309044 v1 · 2003-09-04 · 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{YYWWCIXTAHY5ZV5LDH7R57MDBG}

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	2026-07-04T14:46:24.107620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c62d6122f301f1dcd7ab19ff1efd8309a165e46db8218f4ee5df6ef064db0ce6

Aliases

arxiv: quant-ph/0309044 · arxiv_version: quant-ph/0309044v1 · doi: 10.48550/arxiv.quant-ph/0309044 · pith_short_12: YYWWCIXTAHY5 · pith_short_16: YYWWCIXTAHY5ZV5L · pith_short_8: YYWWCIXT

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/YYWWCIXTAHY5ZV5LDH7R57MDBG \
  | 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: c62d6122f301f1dcd7ab19ff1efd8309a165e46db8218f4ee5df6ef064db0ce6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43b7e2e009f794202e54f697931ef32b1da1e630284f9528ab8ce28cf9e64b55",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-09-04T02:55:00Z",
    "title_canon_sha256": "49344ccff124863f296f3622d143e175c25fb4b7bfec5ba0b2cb77888221d0d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0309044",
    "kind": "arxiv",
    "version": 1
  }
}