Pith Number

pith:3VBAPUP7

pith:2020:3VBAPUP7QA346IF26XC7GNTHLQ

not attested not anchored not stored refs pending

Cluster membership for the long period Cepheid calibrator SV Vul

Amparo Marco (Alicante), Ignacio Negueruela (Alicante), Ricardo Dorda (IAC)

arxiv:2003.10946 v1 · 2020-03-24 · astro-ph.SR · 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{3VBAPUP7QA346IF26XC7GNTHLQ}

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	2026-07-05T04:10:11.492729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd4207d1ff8037cf20baf5c5f336675c146ad44747843ef166fc277e91fafe02

Aliases

arxiv: 2003.10946 · arxiv_version: 2003.10946v1 · doi: 10.48550/arxiv.2003.10946 · pith_short_12: 3VBAPUP7QA34 · pith_short_16: 3VBAPUP7QA346IF2 · pith_short_8: 3VBAPUP7

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/3VBAPUP7QA346IF26XC7GNTHLQ \
  | 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: dd4207d1ff8037cf20baf5c5f336675c146ad44747843ef166fc277e91fafe02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3339c7f371b42b65f150317d700a39c4745e285d3995360f6f6c4c8465304874",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-03-24T16:24:17Z",
    "title_canon_sha256": "72980f605c22a3ab695fe930602064804b30c4eeacc841fff860c8d077020260"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.10946",
    "kind": "arxiv",
    "version": 1
  }
}