Pith Number

pith:YHP7JMS2

pith:2012:YHP7JMS2VX5WNU4V7X26UR2WQZ

not attested not anchored not stored refs pending

Demonstration of On-Sky Calibration of Astronomical Spectra using a 25 GHz near-IR Laser Frequency Comb

Brandon Botzer, Chad F. Bender, Franklyn Quinlan, Gabriel G. Ycas, Lawrence Ramsey, Ryan Terrien, Scott A. Diddams, Steinn Sigurdsson, Stephen Redman, Steve Osterman, Suvrath Mahadevan

arxiv:1201.5125 v2 · 2012-01-23 · physics.optics · astro-ph.EP · astro-ph.IM · physics.atom-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YHP7JMS2VX5WNU4V7X26UR2WQZ}

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	2026-05-18T03:58:38.010397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1dff4b25aadfb66d395fdf5ea4756865104bc957936ce685ee31ab4107937cd

Aliases

arxiv: 1201.5125 · arxiv_version: 1201.5125v2 · doi: 10.48550/arxiv.1201.5125 · pith_short_12: YHP7JMS2VX5W · pith_short_16: YHP7JMS2VX5WNU4V · pith_short_8: YHP7JMS2

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/YHP7JMS2VX5WNU4V7X26UR2WQZ \
  | 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: c1dff4b25aadfb66d395fdf5ea4756865104bc957936ce685ee31ab4107937cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3b3564d515739a1b4e783f6561fc2681caa62307d215b3a10e3ab7a54d62b6f",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.IM",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-01-23T20:01:15Z",
    "title_canon_sha256": "e2ab18b9cf493c0ee1bcca2c52ad907bb9f47337827006c57c6d0585551d146e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5125",
    "kind": "arxiv",
    "version": 2
  }
}