Pith Number

pith:62OYMOLQ

pith:2012:62OYMOLQURFC4SZQMOVCFGWIFQ

not attested not anchored not stored refs pending

Optical black hole lasers

Daniele Faccio, Marco Lamperti, Tal Arane, Ulf Leonhardt

arxiv:1209.4993 v1 · 2012-09-22 · physics.optics · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{62OYMOLQURFC4SZQMOVCFGWIFQ}

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	2026-05-18T01:54:19.876996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f69d863970a44a2e4b3063aa229ac82c15e510f6dd916ca2de975a66730c486f

Aliases

arxiv: 1209.4993 · arxiv_version: 1209.4993v1 · doi: 10.48550/arxiv.1209.4993 · pith_short_12: 62OYMOLQURFC · pith_short_16: 62OYMOLQURFC4SZQ · pith_short_8: 62OYMOLQ

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/62OYMOLQURFC4SZQMOVCFGWIFQ \
  | 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: f69d863970a44a2e4b3063aa229ac82c15e510f6dd916ca2de975a66730c486f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30203df84619a0b12a7f1abfd09f3353348ef5d8eed07c89200814cb41b4007b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-09-22T13:05:39Z",
    "title_canon_sha256": "f224718446033b632bf244901ef5b2a39a426b82a6e52af61a3ff29da135dc0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4993",
    "kind": "arxiv",
    "version": 1
  }
}