Pith Number

pith:7BDBFDRT

pith:2021:7BDBFDRTUBBRIQF6JUX5SN64CV

not attested not anchored not stored refs pending

Stationary scalar clouds supported by rapidly-rotating acoustic black holes in a photon-fluid model

Shahar Hod

arxiv:2102.02215 v1 · 2021-02-03 · gr-qc · astro-ph.HE · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7BDBFDRTUBBRIQF6JUX5SN64CV}

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.

Cited by

1 paper in Pith

The Spectroscopy of the 2+1 Dimensional Analog Black Hole in Photon-Fluid Model

Receipt and verification

First computed	2026-07-05T02:29:43.822508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f846128e33a0431440be4d2fd937dc1549ea992cdb80d780334fd825d25596d8

Aliases

arxiv: 2102.02215 · arxiv_version: 2102.02215v1 · doi: 10.48550/arxiv.2102.02215 · pith_short_12: 7BDBFDRTUBBR · pith_short_16: 7BDBFDRTUBBRIQF6 · pith_short_8: 7BDBFDRT

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/7BDBFDRTUBBRIQF6JUX5SN64CV \
  | 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: f846128e33a0431440be4d2fd937dc1549ea992cdb80d780334fd825d25596d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cefb0805b6e520d8a6ed7a5a2b1385a6bcbc17d430730087b67ea9d5450562d8",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-02-03T19:00:01Z",
    "title_canon_sha256": "a8961f569a3ab9935f9f65c1889cda102e0f36b5e05bef59126f6c9b56eb6c62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.02215",
    "kind": "arxiv",
    "version": 1
  }
}