Pith Number

pith:3OTHHJ7D

pith:2021:3OTHHJ7DZSTROCNGE3T4ULBWZU

not attested not anchored not stored refs pending

Cooling of an Integrated Brillouin Laser below the Thermal Limit

Alexander Medeiros, Danielle Braje, Dave Kharas, Gavin N. West, Paul W. Juodawlkis, Robert McConnell, Ryan Maxson, William Loh

arxiv:2112.00846 v1 · 2021-12-01 · 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{3OTHHJ7DZSTROCNGE3T4ULBWZU}

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	2026-07-05T04:33:26.957676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dba673a7e3cca71709a626e7ca2c36cd19b94c8b476d5a9b98942ff4ff4d5e9a

Aliases

arxiv: 2112.00846 · arxiv_version: 2112.00846v1 · doi: 10.48550/arxiv.2112.00846 · pith_short_12: 3OTHHJ7DZSTR · pith_short_16: 3OTHHJ7DZSTROCNG · pith_short_8: 3OTHHJ7D

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/3OTHHJ7DZSTROCNGE3T4ULBWZU \
  | 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: dba673a7e3cca71709a626e7ca2c36cd19b94c8b476d5a9b98942ff4ff4d5e9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20bc2209c7b236114e146783b26984a1c3086fcb4d64a709be6e8b1757e67430",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-12-01T21:44:24Z",
    "title_canon_sha256": "87337e0e605383d291728623d5e0ef3a70086c83b26e898bb7ff6022465509e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.00846",
    "kind": "arxiv",
    "version": 1
  }
}