Pith Number

pith:DNACD6PU

pith:2013:DNACD6PUZY5BVY7GSZYAUU7TS3

not attested not anchored not stored refs pending

LED-Induced Fluorescence System for Tea Classification and Quality Assessment

Chao Feng, Chunsheng Yan, Liang Mei, Sailing He, Xuan Liu, Yongjiang Dong

arxiv:1311.4250 v1 · 2013-11-18 · 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{DNACD6PUZY5BVY7GSZYAUU7TS3}

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	2026-05-18T03:06:53.210355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b4021f9f4ce3a1ae3e696700a53f396d8a6e1be07b62736a41bad7efc3a7e7d

Aliases

arxiv: 1311.4250 · arxiv_version: 1311.4250v1 · doi: 10.48550/arxiv.1311.4250 · pith_short_12: DNACD6PUZY5B · pith_short_16: DNACD6PUZY5BVY7G · pith_short_8: DNACD6PU

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/DNACD6PUZY5BVY7GSZYAUU7TS3 \
  | 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: 1b4021f9f4ce3a1ae3e696700a53f396d8a6e1be07b62736a41bad7efc3a7e7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "466bf392dfdeb747b0907f2f8539b58c915763c0bb720ae781d7912744ddfe09",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-11-18T03:09:08Z",
    "title_canon_sha256": "8f9450e9c90b72cadf6633a68d7e8d7c52629bda22291ced2197ad03559b7e1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4250",
    "kind": "arxiv",
    "version": 1
  }
}