Pith Number

pith:UKTQBJ7I

pith:2017:UKTQBJ7IAAZFRYQ5ZRPMIVS4A3

not attested not anchored not stored refs pending

First evidence of multiple populations along the AGB from Str\"omgren photometry

Aldo Serenelli, Antonino P. Milone, Luca Casagrande, Pieter Gruyters, Simon T. Hodgkin, Sofia Feltzing

arxiv:1704.08878 v1 · 2017-04-28 · 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{UKTQBJ7IAAZFRYQ5ZRPMIVS4A3}

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	2026-05-18T00:40:57.814707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2a700a7e8003258e21dcc5ec4565c06d1167698a16e53e89c894aff53ba779a

Aliases

arxiv: 1704.08878 · arxiv_version: 1704.08878v1 · doi: 10.48550/arxiv.1704.08878 · pith_short_12: UKTQBJ7IAAZF · pith_short_16: UKTQBJ7IAAZFRYQ5 · pith_short_8: UKTQBJ7I

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/UKTQBJ7IAAZFRYQ5ZRPMIVS4A3 \
  | 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: a2a700a7e8003258e21dcc5ec4565c06d1167698a16e53e89c894aff53ba779a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cad46504d680f08f5619f7a03e6c8ceaf940412b4b69306f0bb46c46cca2b9dc",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-04-28T11:22:29Z",
    "title_canon_sha256": "2a5a58c2d921a264f249a166591ce2365aa4cfa88d0291dc290e57116de712cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08878",
    "kind": "arxiv",
    "version": 1
  }
}