Pith Number

pith:GYXFUX6M

pith:2012:GYXFUX6MCYYSBW4SY7CSIOHF3M

not attested not anchored not stored refs pending

Laser frequency comb techniques for precise astronomical spectroscopy

(2) University of Western Australia, (3) Australian Astronomical Observatory, 4) ((1) Swinburne University of Technology, (4) Macquarie University), Andre N. Luiten (2), Clayton R. Locke (2), Jon S. Lawrence (3, Michael T. Murphy (1), Philip S. Light (2)

arxiv:1202.0819 v1 · 2012-02-03 · astro-ph.IM · astro-ph.CO · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GYXFUX6MCYYSBW4SY7CSIOHF3M}

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	2026-05-18T01:58:35.601253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

362e5a5fcc163120db92c7c52438e5db0d7901031e0fbce70128ff43c740536c

Aliases

arxiv: 1202.0819 · arxiv_version: 1202.0819v1 · doi: 10.48550/arxiv.1202.0819 · pith_short_12: GYXFUX6MCYYS · pith_short_16: GYXFUX6MCYYSBW4S · pith_short_8: GYXFUX6M

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/GYXFUX6MCYYSBW4SY7CSIOHF3M \
  | 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: 362e5a5fcc163120db92c7c52438e5db0d7901031e0fbce70128ff43c740536c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59a14cf0b52e85d636d1f2c606efe79a8774a1163554895000df812058b7d88a",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-02-03T21:00:00Z",
    "title_canon_sha256": "f7b3a69a3275dbdd6ac7c4c64aa758813a5086f70d49cbb586855f8fe58948bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0819",
    "kind": "arxiv",
    "version": 1
  }
}