Pith Number

pith:OFP73HL5

pith:2017:OFP73HL5ZYHTPRJS2FVWLGEPTG

not attested not anchored not stored refs pending

M13 multiple stellar populations seen with the eyes of Str\"omgren photometry

A. Bragaglia, A. Savino, D. Massari, E. Dalessandro, E. Tolstoy

arxiv:1712.01284 v1 · 2017-12-04 · 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{OFP73HL5ZYHTPRJS2FVWLGEPTG}

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	2026-05-18T00:28:51.200977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

715ffd9d7dce0f37c532d16b65988f99a47cf0c8068c10a245ade146500391d4

Aliases

arxiv: 1712.01284 · arxiv_version: 1712.01284v1 · doi: 10.48550/arxiv.1712.01284 · pith_short_12: OFP73HL5ZYHT · pith_short_16: OFP73HL5ZYHTPRJS · pith_short_8: OFP73HL5

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/OFP73HL5ZYHTPRJS2FVWLGEPTG \
  | 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: 715ffd9d7dce0f37c532d16b65988f99a47cf0c8068c10a245ade146500391d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc42ecf98244d82722bdcad6600a74ef90f66d0d7e6edeb75a8e0e0fb3c0e33c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-12-04T19:00:01Z",
    "title_canon_sha256": "8a8369551c155f61059c6ef0700df8d6571da5149c5589e6b7e8eeb04c36307c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01284",
    "kind": "arxiv",
    "version": 1
  }
}