Pith Number

pith:D2JV5WCK

pith:2009:D2JV5WCKYBG5TEUAFDFOMYRQSS

not attested not anchored not stored refs pending

Realization of a sonic black hole analogue in a Bose-Einstein condensate

Alex Blumkin, Alona Zayats, Amir Itah, Carmit Gordon, Jeff Steinhauer, Oren Lahav, Shahar Rinott

arxiv:0906.1337 v2 · 2009-06-07 · cond-mat.quant-gas · 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{D2JV5WCKYBG5TEUAFDFOMYRQSS}

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	2026-05-18T04:32:53.544195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e935ed84ac04dd9928028cae66230948a946fb97d2d2afe4586281eff09f5b6

Aliases

arxiv: 0906.1337 · arxiv_version: 0906.1337v2 · doi: 10.48550/arxiv.0906.1337 · pith_short_12: D2JV5WCKYBG5 · pith_short_16: D2JV5WCKYBG5TEUA · pith_short_8: D2JV5WCK

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/D2JV5WCKYBG5TEUAFDFOMYRQSS \
  | 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: 1e935ed84ac04dd9928028cae66230948a946fb97d2d2afe4586281eff09f5b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fbb1f911f1fc8a5b992cffc45a0bc2e12411d1e183195614e6a4889ba9df145",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2009-06-07T09:56:15Z",
    "title_canon_sha256": "e00197c9701b7db57d0354ef75a5e254c684de081a05dadd00c9634397436903"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1337",
    "kind": "arxiv",
    "version": 2
  }
}