Pith Number

pith:4DJXMCBF

pith:2001:4DJXMCBFQM3FCR2LC56YWPPF4X

not attested not anchored not stored refs pending

Studies of multiple stellar systems - IV. The triple-lined spectroscopic system Gliese 644

David W. Latham, Elad Goldberg, Eran O. Ofek, Guillermo Torres, Orly Gnat, Robert P. Stefanik, Shay Zucker, Todd J. Henry, Tsevi Mazeh

arxiv:astro-ph/0102451 v1 · 2001-02-26 · 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{4DJXMCBFQM3FCR2LC56YWPPF4X}

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	2026-07-04T16:22:47.167102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0d3760825833651474b177d8b3de5e5e56ca07b0d88b08c046efc4198ce31b2

Aliases

arxiv: astro-ph/0102451 · arxiv_version: astro-ph/0102451v1 · doi: 10.48550/arxiv.astro-ph/0102451 · pith_short_12: 4DJXMCBFQM3F · pith_short_16: 4DJXMCBFQM3FCR2L · pith_short_8: 4DJXMCBF

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/4DJXMCBFQM3FCR2LC56YWPPF4X \
  | 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: e0d3760825833651474b177d8b3de5e5e56ca07b0d88b08c046efc4198ce31b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d04ae5b5daffe9c7c11428fba419483d9b9a4cd847f1b0579a7bf56407cbcfe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-02-26T20:43:52Z",
    "title_canon_sha256": "82af71cdecf026d7d57cbfd180b0f8e86ff8f53be23b0353b071aa189ccd8ff2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0102451",
    "kind": "arxiv",
    "version": 1
  }
}