Pith Number

pith:ALKUGN24

pith:2015:ALKUGN247TKJ32IEMI4XJLZLD2

not attested not anchored not stored refs pending

Clustered Cepheid Variables 90 kiloparsec from the Galactic Center

Alice Quillen, Christopher Klein, Felipe Gran, Leo Blitz, Roberto Saito, Sukanya Chakrabarti

arxiv:1502.01358 v1 · 2015-02-04 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ALKUGN247TKJ32IEMI4XJLZLD2}

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	2026-05-18T01:41:04.751004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02d543375cfcd49de904623974af2b1e86698f6a0e7428bae3ed6e9a7254ce97

Aliases

arxiv: 1502.01358 · arxiv_version: 1502.01358v1 · doi: 10.48550/arxiv.1502.01358 · pith_short_12: ALKUGN247TKJ · pith_short_16: ALKUGN247TKJ32IE · pith_short_8: ALKUGN24

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/ALKUGN247TKJ32IEMI4XJLZLD2 \
  | 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: 02d543375cfcd49de904623974af2b1e86698f6a0e7428bae3ed6e9a7254ce97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9debc7eee9711019b76bec17678c19be3418ee3094e34dd8df596efdd4933f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-04T21:06:10Z",
    "title_canon_sha256": "e835daafb245847e2f9067bc2a3ca5d408f5c126a4ff0905d4ad3b61f068db21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01358",
    "kind": "arxiv",
    "version": 1
  }
}