Pith Number

pith:IUV2MTPR

pith:2017:IUV2MTPRUPHOZTCPKQJY6P7FOP

not attested not anchored not stored refs pending

Quasinormal modes of the polytropic hydrodynamic vortex

Leandro A. Oliveira, Lu\'is C. B. Crispino, Vitor Cardoso

arxiv:1703.01277 v1 · 2017-03-03 · 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{IUV2MTPRUPHOZTCPKQJY6P7FOP}

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	2026-05-18T00:49:35.538637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

452ba64df1a3ceeccc4f54138f3fe573cf3f6f952ed7ad824158219cd176c0fb

Aliases

arxiv: 1703.01277 · arxiv_version: 1703.01277v1 · doi: 10.48550/arxiv.1703.01277 · pith_short_12: IUV2MTPRUPHO · pith_short_16: IUV2MTPRUPHOZTCP · pith_short_8: IUV2MTPR

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/IUV2MTPRUPHOZTCPKQJY6P7FOP \
  | 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: 452ba64df1a3ceeccc4f54138f3fe573cf3f6f952ed7ad824158219cd176c0fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a831578261b17bc45f7ad64a9421ce3aa1e8d18b29bf35c84d85c1137ada543",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-03-03T18:20:34Z",
    "title_canon_sha256": "60dc8758103ddef6294f40ed26e265457b8b955e0d2105dac97fe677d9b496c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.01277",
    "kind": "arxiv",
    "version": 1
  }
}