Pith Number

pith:2O6PJTYB

pith:2019:2O6PJTYB7YR2D2OWLWMAMMAOM7

not attested not anchored not stored refs pending

Time-stretch infrared spectroscopy

Akira Kawai, Kazuki Hasihmoto, Takayuki Imamura, Takuro Ideguchi, Venkata Ramaiah Badarla

arxiv:1912.03857 v2 · 2019-12-09 · 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{2O6PJTYB7YR2D2OWLWMAMMAOM7}

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	2026-07-05T10:58:11.227308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3bcf4cf01fe23a1e9d65d9806300e67f4c0291ec025c7a41d9f6b711d50c3be

Aliases

arxiv: 1912.03857 · arxiv_version: 1912.03857v2 · doi: 10.48550/arxiv.1912.03857 · pith_short_12: 2O6PJTYB7YR2 · pith_short_16: 2O6PJTYB7YR2D2OW · pith_short_8: 2O6PJTYB

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/2O6PJTYB7YR2D2OWLWMAMMAOM7 \
  | 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: d3bcf4cf01fe23a1e9d65d9806300e67f4c0291ec025c7a41d9f6b711d50c3be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57e988424039bcd8830178e1249a4e5036f949c36cb6bd73452dfa447b6ab5c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-12-09T05:47:19Z",
    "title_canon_sha256": "581b431a0a67de03e42ec32b5201a8fdf65a9ba67cb1f3c1914a572b9c7be1ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.03857",
    "kind": "arxiv",
    "version": 2
  }
}