Pith Number

pith:TZLHLJ4K

pith:2001:TZLHLJ4KPEUCCYBBKNQKESQHOB

not attested not anchored not stored refs pending

The Impact of Tidal Interactions on Satellite Galaxies: A Study of the M31 Satellites, M32 & NGC 205

Kathryn V. Johnston (Wesleyan University), Philip I. Choi, Puragra Guhathakurta (UCSC)

arxiv:astro-ph/0111451 v1 · 2001-11-22 · 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{TZLHLJ4KPEUCCYBBKNQKESQHOB}

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	2026-05-18T00:37:17.808642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e5675a78a79282160215360a24a07705d054ab0ac13e97aaa8b0160e49d680d

Aliases

arxiv: astro-ph/0111451 · arxiv_version: astro-ph/0111451v1 · doi: 10.48550/arxiv.astro-ph/0111451 · pith_short_12: TZLHLJ4KPEUC · pith_short_16: TZLHLJ4KPEUCCYBB · pith_short_8: TZLHLJ4K

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/TZLHLJ4KPEUCCYBBKNQKESQHOB \
  | 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: 9e5675a78a79282160215360a24a07705d054ab0ac13e97aaa8b0160e49d680d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81b524cdae49022b4439980b0559a3feb3463628a970e033ddd6c61cb4d8386c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-22T21:01:03Z",
    "title_canon_sha256": "1f9fd51295207b20da1e4b78a9c6a9acdd83eb36f250509fd13188e182919cac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111451",
    "kind": "arxiv",
    "version": 1
  }
}