Pith Number

pith:GONKSDRN

pith:2020:GONKSDRNGHTRN3S7QAT5MPNYBD

not attested not anchored not stored refs pending

Hybrid colour filters for multispectral imaging

Ampalavanapillai Nirmalathas, MD Hemayet Uddin, Paul Beckett, Ranjith Rajasekharan Unnithan, Xin He, Yajing Liu

arxiv:2012.01531 v1 · 2020-12-02 · 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{GONKSDRNGHTRN3S7QAT5MPNYBD}

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	2026-07-05T01:56:47.388671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

339aa90e2d31e716ee5f8027d63db808f65fa0ca37a09e999e2888077738a002

Aliases

arxiv: 2012.01531 · arxiv_version: 2012.01531v1 · doi: 10.48550/arxiv.2012.01531 · pith_short_12: GONKSDRNGHTR · pith_short_16: GONKSDRNGHTRN3S7 · pith_short_8: GONKSDRN

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/GONKSDRNGHTRN3S7QAT5MPNYBD \
  | 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: 339aa90e2d31e716ee5f8027d63db808f65fa0ca37a09e999e2888077738a002

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28ee22289526df489d555d2fee6b83753def6210f89115afd88aee3027ad7bc7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-12-02T21:13:15Z",
    "title_canon_sha256": "7e4d2337c7df7e4fc11da5cbbd46762ab60767c37b971dd9c2436969ee230487"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.01531",
    "kind": "arxiv",
    "version": 1
  }
}