Pith Number

pith:E4SW2ZNA

pith:2001:E4SW2ZNAP42W6SUIMFCWXZ6BQB

not attested not anchored not stored refs pending

Tip of the Red Giant Branch Distances to NGC 4214, UGC 685, and UGC 5456

Baltimore, Jes\'us Ma\'iz-Apell\'aniz (1), John W. MacKenty (1) ((1) STScI, Lucas Cieza (2), Melbourne, USA), USA; (2) Florida Institute of Technology

arxiv:astro-ph/0111372 v1 · 2001-11-20 · 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{E4SW2ZNAP42W6SUIMFCWXZ6BQB}

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	2026-05-18T01:09:10.832231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27256d65a07f356f4a8861456be7c180702648e4fcfa55b3db6b7369008c6ae5

Aliases

arxiv: astro-ph/0111372 · arxiv_version: astro-ph/0111372v1 · doi: 10.48550/arxiv.astro-ph/0111372 · pith_short_12: E4SW2ZNAP42W · pith_short_16: E4SW2ZNAP42W6SUI · pith_short_8: E4SW2ZNA

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/E4SW2ZNAP42W6SUIMFCWXZ6BQB \
  | 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: 27256d65a07f356f4a8861456be7c180702648e4fcfa55b3db6b7369008c6ae5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2beaa1e2aae2de0d8a516e5f700e9c9617ed218432acf8c6fc720cba66aa8878",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-20T00:40:32Z",
    "title_canon_sha256": "b3454dcde11e5763497c93941742c98838899ae9793543434f00ff5792480d58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111372",
    "kind": "arxiv",
    "version": 1
  }
}