Pith Number

pith:6LDWQU2A

pith:1999:6LDWQU2A2OVIAI7C7USQFWKJOS

not attested not anchored not stored refs pending

Viscous Boundary Layer Damping of R-Modes in Neutron Stars

(2) UC Berkeley), Greg Ushomirsky (2) ((1) ITP/UC Santa Barbara, Lars Bildsten (1)

arxiv:astro-ph/9911155 v1 · 1999-11-09 · astro-ph · 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{6LDWQU2A2OVIAI7C7USQFWKJOS}

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

Superradiant amplification by rotating viscous compact objects

Receipt and verification

First computed	2026-07-04T16:11:53.388544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2c7685340d3aa8023e2fd2502d94974823b679ffa811b61131242e7620cdd8f

Aliases

arxiv: astro-ph/9911155 · arxiv_version: astro-ph/9911155v1 · doi: 10.48550/arxiv.astro-ph/9911155 · pith_short_12: 6LDWQU2A2OVI · pith_short_16: 6LDWQU2A2OVIAI7C · pith_short_8: 6LDWQU2A

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/6LDWQU2A2OVIAI7C7USQFWKJOS \
  | 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: f2c7685340d3aa8023e2fd2502d94974823b679ffa811b61131242e7620cdd8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d5bb2cfee32a2699c3e44bd7496731940a518e5d18fbd47334325f6a11a84ed",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-09T22:50:58Z",
    "title_canon_sha256": "12e0dc235ac3bd2e51ccc6fee995c317ad67067b9aeaa77412c26fa9ad672f6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911155",
    "kind": "arxiv",
    "version": 1
  }
}