Pith Number

pith:6BTZWNMY

pith:2009:6BTZWNMYMP6TUT6PU53LTKC7D7

not attested not anchored not stored refs pending

Random terahertz metamaterials

Jianqiang Gu, Ranjan Singh, WeiLi Zhang, Xinchao Lu, Zhen Tian

arxiv:0909.3539 v1 · 2009-09-18 · 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{6BTZWNMYMP6TUT6PU53LTKC7D7}

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	2026-05-18T02:11:46.262484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0679b359863fd3a4fcfa776b9a85f1fcb5ee7016b533605bdde0f7cb44a8d76

Aliases

arxiv: 0909.3539 · arxiv_version: 0909.3539v1 · doi: 10.48550/arxiv.0909.3539 · pith_short_12: 6BTZWNMYMP6T · pith_short_16: 6BTZWNMYMP6TUT6P · pith_short_8: 6BTZWNMY

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/6BTZWNMYMP6TUT6PU53LTKC7D7 \
  | 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: f0679b359863fd3a4fcfa776b9a85f1fcb5ee7016b533605bdde0f7cb44a8d76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67d1ea3832f82a661f7873f3140e8f72deda5a495fc2c0d53594dcc4b4866f95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-09-18T22:07:31Z",
    "title_canon_sha256": "3cc6cf943218ea20729f77b92d6353a5787696d320fc9b96a2772cad610a28f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3539",
    "kind": "arxiv",
    "version": 1
  }
}