Pith Number

pith:2Z4NWZUH

pith:2014:2Z4NWZUHNJG5HREC2LFOFIOSRL

not attested not anchored not stored refs pending

Orbital angular momentum light frequency conversion and interference with quasi-phase matching crystals

Bao-Sen Shi, Dong-Sheng Ding, Guang-Can Guo, Shuai Shi, Xi-Shi Wang, Yan Li, Yun-Kun Jiang, Zhi-Yuan Zhou

arxiv:1405.1878 v1 · 2014-05-08 · physics.optics

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

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	2026-05-18T02:45:04.121694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d678db66876a4dd3c482d2cae2a1d28ac9bcba00b31ea5cf05829283f32673ba

Aliases

arxiv: 1405.1878 · arxiv_version: 1405.1878v1 · doi: 10.48550/arxiv.1405.1878 · pith_short_12: 2Z4NWZUHNJG5 · pith_short_16: 2Z4NWZUHNJG5HREC · pith_short_8: 2Z4NWZUH

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/2Z4NWZUHNJG5HREC2LFOFIOSRL \
  | 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: d678db66876a4dd3c482d2cae2a1d28ac9bcba00b31ea5cf05829283f32673ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31012a3a50369040707ee75a52f410dc5cbb64855aa8884a04f52b491ef96b36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-05-08T11:05:42Z",
    "title_canon_sha256": "1458622ac40e9373cd431b31946f3164079ecb954e4127bdcf370a6d191dcd82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.1878",
    "kind": "arxiv",
    "version": 1
  }
}