Pith Number

pith:PER4CU4I

pith:2021:PER4CU4I2WG6D5XOK65C7VX6UG

not attested not anchored not stored refs pending

Terahertz birefringent gratings for filtering and dispersion compensation

Gang-Ding Peng, Haisu Li, Muhammad Talal Ali Khan, Shaghik Atakaramians, Yajing Liu

arxiv:2108.11323 v1 · 2021-08-25 · 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{PER4CU4I2WG6D5XOK65C7VX6UG}

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	2026-07-05T03:08:52.461174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7923c15388d58de1f6ee57ba2fd6fea19a9054d714217642007d5bf978f156cc

Aliases

arxiv: 2108.11323 · arxiv_version: 2108.11323v1 · doi: 10.48550/arxiv.2108.11323 · pith_short_12: PER4CU4I2WG6 · pith_short_16: PER4CU4I2WG6D5XO · pith_short_8: PER4CU4I

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/PER4CU4I2WG6D5XOK65C7VX6UG \
  | 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: 7923c15388d58de1f6ee57ba2fd6fea19a9054d714217642007d5bf978f156cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9700a2f34a5fe1faed706c2166eda7641267f45ca7efbb2b7b3654eb97078e74",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-08-25T16:37:43Z",
    "title_canon_sha256": "bb81356c5aef7f08614784d4eaff9a108bcf9a34678a498ffc8cb591d6460a9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.11323",
    "kind": "arxiv",
    "version": 1
  }
}