Pith Number

pith:KWDJMPUL

pith:2005:KWDJMPULSPN7JE2CVLLW6VROB6

not attested not anchored not stored refs pending

Acoustic analogues of black hole singularities

Mariano Cadoni, Salvatore Mignemi

arxiv:gr-qc/0504143 v1 · 2005-04-29 · 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{KWDJMPULSPN7JE2CVLLW6VROB6}

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

Analog model for Euclidean wormholes: Bose-Einstein condensate with dirty surfaces

Receipt and verification

First computed	2026-07-04T16:55:13.444328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5586963e8b93dbf49342aad76f562e0f823eea7acf6f1dcffc66335888c1c228

Aliases

arxiv: gr-qc/0504143 · arxiv_version: gr-qc/0504143v1 · doi: 10.48550/arxiv.gr-qc/0504143 · pith_short_12: KWDJMPULSPN7 · pith_short_16: KWDJMPULSPN7JE2C · pith_short_8: KWDJMPUL

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/KWDJMPULSPN7JE2CVLLW6VROB6 \
  | 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: 5586963e8b93dbf49342aad76f562e0f823eea7acf6f1dcffc66335888c1c228

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57ecae2c659114652a54c01ab59af5413e45717c99be9cca55e17f0b77d567f6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2005-04-29T07:06:16Z",
    "title_canon_sha256": "121d7a3b4a4a157ed8409adcb056994297f874a835f5afd64037732eb981d128"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0504143",
    "kind": "arxiv",
    "version": 1
  }
}