Pith Number

pith:CYA2OPRA

pith:2016:CYA2OPRAMIGEKUWS4JIHB63IGK

not attested not anchored not stored refs pending

Step-index optical fibre drawn from 3D printed preforms

Chunyang Han, Gang-Ding Peng, Geoffrey Balle, Jade-Edouard Comatti, John Canning, Kevin Cook, Loic Chartier, Md Arafat Hossain, Tristan Athanaze, Yanhua Luo

arxiv:1609.02012 v1 · 2016-08-31 · physics.ins-det · 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{CYA2OPRAMIGEKUWS4JIHB63IGK}

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	2026-05-18T01:05:09.400894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1601a73e20620c4552d2e25070fb68329a56aa7a2216b21afa99bee148318de9

Aliases

arxiv: 1609.02012 · arxiv_version: 1609.02012v1 · doi: 10.48550/arxiv.1609.02012 · pith_short_12: CYA2OPRAMIGE · pith_short_16: CYA2OPRAMIGEKUWS · pith_short_8: CYA2OPRA

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/CYA2OPRAMIGEKUWS4JIHB63IGK \
  | 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: 1601a73e20620c4552d2e25070fb68329a56aa7a2216b21afa99bee148318de9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d45c0d4c99c5036509a6afb6a80372a1adfdc1075005bd8f4a9cf7499bdef9f",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2016-08-31T23:12:34Z",
    "title_canon_sha256": "2566715e088f72ca13efb0e246c5e4df298e2c3b1fb688b09eef382e42674a96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.02012",
    "kind": "arxiv",
    "version": 1
  }
}