Pith Number

pith:GHABTBFV

pith:2009:GHABTBFVYXYIZMFBJNJLRMPJBK

not attested not anchored not stored refs pending

Silicon Nanophotonic Waveguides for the Mid-Infrared

Alexander Spott, Andrew Spott, Boyan Penkov, Michael Hochberg, Rob Ilic, Tom Baehr-Jones, William Asher

arxiv:0911.0949 v1 · 2009-11-04 · 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{GHABTBFVYXYIZMFBJNJLRMPJBK}

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	2026-05-18T02:10:59.412645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31c01984b5c5f08cb0a14b52b8b1e90a937672dfd7bf37dc6339f60cef803f70

Aliases

arxiv: 0911.0949 · arxiv_version: 0911.0949v1 · doi: 10.48550/arxiv.0911.0949 · pith_short_12: GHABTBFVYXYI · pith_short_16: GHABTBFVYXYIZMFB · pith_short_8: GHABTBFV

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/GHABTBFVYXYIZMFBJNJLRMPJBK \
  | 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: 31c01984b5c5f08cb0a14b52b8b1e90a937672dfd7bf37dc6339f60cef803f70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d59acaea43c021d3a51e43da2a3a0c794fba54f746a2392e263cdae2187f4ccb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-11-04T23:00:55Z",
    "title_canon_sha256": "b440d3cb48151d29d885b0fe14b555733a7882e5840ffb672d546c62ad0903ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0949",
    "kind": "arxiv",
    "version": 1
  }
}