Pith Number

pith:FTRUVCWM

pith:2010:FTRUVCWMBQFWTXY5PJCBVSD4KA

not attested not anchored not stored refs pending

The GEO600 squeezed light source

Alexander Khalaidovski, Christian Graef, Henning Vahlbruch, Karsten Danzmann, Nico Lastzka, Roman Schnabel

arxiv:1004.4975 v1 · 2010-04-28 · quant-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{FTRUVCWMBQFWTXY5PJCBVSD4KA}

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	2026-05-18T02:33:33.332114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ce34a8acc0c0b69df1d7a441ac87c50372fec02e623e27606e6c185f85f6642

Aliases

arxiv: 1004.4975 · arxiv_version: 1004.4975v1 · doi: 10.48550/arxiv.1004.4975 · pith_short_12: FTRUVCWMBQFW · pith_short_16: FTRUVCWMBQFWTXY5 · pith_short_8: FTRUVCWM

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/FTRUVCWMBQFWTXY5PJCBVSD4KA \
  | 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: 2ce34a8acc0c0b69df1d7a441ac87c50372fec02e623e27606e6c185f85f6642

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f29d3ef69ae545c79e84abe904fb34db63386f5550b7dedc155ca45855729664",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-04-28T08:39:32Z",
    "title_canon_sha256": "24da05794d50382beb2fca1075ecb422cc5a8fc8bfafb708959f50e46357f68f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.4975",
    "kind": "arxiv",
    "version": 1
  }
}