Pith Number

pith:KTQDQL2K

pith:2001:KTQDQL2KOUWG4G25NTQEMXFG7T

not attested not anchored not stored refs pending

The subsurface radial gradient of solar angular velocity from MDI f-mode observations

Atmospheric Physics Group, Imperial College, London, M. J. Thompson (Space, T. Corbard, The Blackett Laboratory, UK)

arxiv:astro-ph/0110361 v1 · 2001-10-16 · astro-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{KTQDQL2KOUWG4G25NTQEMXFG7T}

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	2026-05-18T01:40:43.911644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54e0382f4a752c6e1b5d6ce0465ca6fcce5976f0827452130dcd95006e8a8f13

Aliases

arxiv: astro-ph/0110361 · arxiv_version: astro-ph/0110361v1 · doi: 10.48550/arxiv.astro-ph/0110361 · pith_short_12: KTQDQL2KOUWG · pith_short_16: KTQDQL2KOUWG4G25 · pith_short_8: KTQDQL2K

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/KTQDQL2KOUWG4G25NTQEMXFG7T \
  | 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: 54e0382f4a752c6e1b5d6ce0465ca6fcce5976f0827452130dcd95006e8a8f13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2cac14382b701794a1a09df0dabd7617104d2269c5eea36139c67707b2adcdb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-16T09:27:17Z",
    "title_canon_sha256": "72a11860d3244e814e52fb74459b3d467bc72d9233cd29149f141454fef27615"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110361",
    "kind": "arxiv",
    "version": 1
  }
}