Pith Number

pith:R2A2CKVH

pith:2011:R2A2CKVHFHR6FB7VJIPILFJ7R7

not attested not anchored not stored refs pending

Supersonic Velocities in Noncommutative Acoustic Black Holes

E. Passos, F.A. Brito, M. A. Anacleto

arxiv:1109.6298 v2 · 2011-09-28 · hep-th · gr-qc · hep-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{R2A2CKVHFHR6FB7VJIPILFJ7R7}

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	2026-05-18T04:03:56.814141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e81a12aa729e3e287f54a1e85953f8fc7414068c15ed3fb90d2a1f002f89159

Aliases

arxiv: 1109.6298 · arxiv_version: 1109.6298v2 · doi: 10.48550/arxiv.1109.6298 · pith_short_12: R2A2CKVHFHR6 · pith_short_16: R2A2CKVHFHR6FB7V · pith_short_8: R2A2CKVH

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/R2A2CKVHFHR6FB7VJIPILFJ7R7 \
  | 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: 8e81a12aa729e3e287f54a1e85953f8fc7414068c15ed3fb90d2a1f002f89159

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68104abeb2d95f38e2f755a479777c6b58b5e37c0732e99ba8ac194d9854de5f",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2011-09-28T19:04:00Z",
    "title_canon_sha256": "e11d1293d89cbac56e7a8f9d923b69e2a47a17af3538ed849f72c91af4dedda4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6298",
    "kind": "arxiv",
    "version": 2
  }
}