Pith Number

pith:FQMIEQQK

pith:2022:FQMIEQQKNMMQBTIDQBSDMVQWN4

not attested not anchored not stored refs pending

Imaging Scatterometer for Observing Changes to Optical Coatings During Air Annealing

Amy Gleckl, Daniel Martinez, Joshua R. Smith, Michael Rezac

arxiv:2202.12393 v1 · 2022-02-19 · physics.ins-det

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FQMIEQQKNMMQBTIDQBSDMVQWN4}

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	2026-07-05T03:59:54.784376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c1882420a6b1900cd0380643656166f3fc36abb6e8c94d88eca9907466e23a9

Aliases

arxiv: 2202.12393 · arxiv_version: 2202.12393v1 · doi: 10.48550/arxiv.2202.12393 · pith_short_12: FQMIEQQKNMMQ · pith_short_16: FQMIEQQKNMMQBTID · pith_short_8: FQMIEQQK

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/FQMIEQQKNMMQBTIDQBSDMVQWN4 \
  | 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: 2c1882420a6b1900cd0380643656166f3fc36abb6e8c94d88eca9907466e23a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "189db0afac02bee9c3d732f1fc833c72a18758a452e173a0828b2361ed5b292d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2022-02-19T21:15:55Z",
    "title_canon_sha256": "d9c177c839ff53c921ce2964920506fd1661a74371e096779455affbda96d411"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.12393",
    "kind": "arxiv",
    "version": 1
  }
}