Pith Number

pith:H37Z77JQ

pith:2013:H37Z77JQQTGSWPUAEJYGTELX54

not attested not anchored not stored refs pending

New silicon photonics integration platform enabled by novel micron-scale bends

Markku Kapulainen, Matteo Cherchi, Mikko Harjanne, Sami Ylinen, Timo Aalto

arxiv:1301.2197 v1 · 2013-01-09 · 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{H37Z77JQQTGSWPUAEJYGTELX54}

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	2026-05-18T03:18:06.221013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3eff9ffd3084cd2b3e802270699177ef3c19dcadc5a932fd98e1016e718e5edf

Aliases

arxiv: 1301.2197 · arxiv_version: 1301.2197v1 · doi: 10.48550/arxiv.1301.2197 · pith_short_12: H37Z77JQQTGS · pith_short_16: H37Z77JQQTGSWPUA · pith_short_8: H37Z77JQ

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/H37Z77JQQTGSWPUAEJYGTELX54 \
  | 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: 3eff9ffd3084cd2b3e802270699177ef3c19dcadc5a932fd98e1016e718e5edf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "571fa9fd6ad1f34bc79869257fcb15139375a9451636bad20c8629d6cb39758f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-01-09T15:34:00Z",
    "title_canon_sha256": "25b7dfc38c249ff78980421fb3fb5276c8480495f2612ab92772d71e40231fdc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2197",
    "kind": "arxiv",
    "version": 1
  }
}