Pith Number

pith:JHZCVK7O

pith:2007:JHZCVK7OIPFVDBROVGDKQOWOFW

not attested not anchored not stored refs pending

Stellar populations in the Magellanic Clouds: looking through the dust

Guido De Marchi (ESA), Martino Romaniello (ESO), Nino Panagia (STScI)

arxiv:astro-ph/0702020 v1 · 2007-02-01 · 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{JHZCVK7OIPFVDBROVGDKQOWOFW}

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	2026-05-18T01:40:27.004103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49f22aabee43cb51862ea986a83ace2db950ee9f67dc97584b6795f903ca7fff

Aliases

arxiv: astro-ph/0702020 · arxiv_version: astro-ph/0702020v1 · doi: 10.48550/arxiv.astro-ph/0702020 · pith_short_12: JHZCVK7OIPFV · pith_short_16: JHZCVK7OIPFVDBRO · pith_short_8: JHZCVK7O

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/JHZCVK7OIPFVDBROVGDKQOWOFW \
  | 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: 49f22aabee43cb51862ea986a83ace2db950ee9f67dc97584b6795f903ca7fff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd37da75ff5afaf079ebabb056000ada9c9bea2524aae2b252ef82b04b4b8a79",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-01T11:25:47Z",
    "title_canon_sha256": "a0e34b3225f25aa5d70ea527bf52bfd4f153a0dc47bddedd10629088a1655601"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702020",
    "kind": "arxiv",
    "version": 1
  }
}