Pith Number

pith:A4PRNB7F

pith:2021:A4PRNB7FYH4U6277TEKRIXHGIF

not attested not anchored not stored refs pending

Reconfiguring colours of single relief structures by directional stretching

Cheng-Wei Qiu, Dianyuan Fan, Hailong Liu, Hao Wang, Hongtao Wang, Joel K.W. Yang, John You En Chan, Qifeng Ruan, Wang Zhang, Ying Li

arxiv:2109.00730 v2 · 2021-09-02 · physics.optics · physics.app-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{A4PRNB7FYH4U6277TEKRIXHGIF}

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	2026-07-05T03:58:53.357995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

071f1687e5c1f94f6bff9915145ce64154fe9e4dce9a5f60f3ed77ba9ac61534

Aliases

arxiv: 2109.00730 · arxiv_version: 2109.00730v2 · doi: 10.48550/arxiv.2109.00730 · pith_short_12: A4PRNB7FYH4U · pith_short_16: A4PRNB7FYH4U6277 · pith_short_8: A4PRNB7F

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/A4PRNB7FYH4U6277TEKRIXHGIF \
  | 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: 071f1687e5c1f94f6bff9915145ce64154fe9e4dce9a5f60f3ed77ba9ac61534

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5764678fd6da3ad98120d4fc30e29fd8578461e0643e2293351f500e77d864ca",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-09-02T06:04:46Z",
    "title_canon_sha256": "207ed7d32c5554005161e87eb158f66d0d4e097b2df9a74f01024eda3aa384b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00730",
    "kind": "arxiv",
    "version": 2
  }
}