Pith Number

pith:NC7O66VI

pith:2017:NC7O66VIINXH4I2LGQ4WPIEJBT

not attested not anchored not stored refs pending

Coherent perfect absorber and laser in purely imaginary conjugate metamaterials

Huanyang Chen, Steven A. Cummer, Yadong Xu, Yangyang Fu, Yanyan Cao

arxiv:1708.02004 v1 · 2017-08-07 · 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{NC7O66VIINXH4I2LGQ4WPIEJBT}

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	2026-05-18T00:32:05.894619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68beef7aa8436e7e234b343967a0890cd827db0996b6495648807037cb971f2d

Aliases

arxiv: 1708.02004 · arxiv_version: 1708.02004v1 · doi: 10.48550/arxiv.1708.02004 · pith_short_12: NC7O66VIINXH · pith_short_16: NC7O66VIINXH4I2L · pith_short_8: NC7O66VI

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/NC7O66VIINXH4I2LGQ4WPIEJBT \
  | 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: 68beef7aa8436e7e234b343967a0890cd827db0996b6495648807037cb971f2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9280acff06f289cb947227ec20da77b1b9e425f447d50ad123ed35e2fd006944",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-08-07T06:39:01Z",
    "title_canon_sha256": "10b1e82c317a82279e0ff696b208a123e61f14577ec020346674e7646250393e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02004",
    "kind": "arxiv",
    "version": 1
  }
}