Pith Number

pith:QRAYLQBO

pith:2020:QRAYLQBOA645IOPLFJPSETVIDM

not attested not anchored not stored refs pending

Bayesian calibration of the mixing length parameter $\alpha_{ML}$ and of the helium-to-metal enrichment ratio $\Delta Y/\Delta Z$ with open clusters: the Hyades test-bed

E. Tognelli, G. Valle, M. Dell'Omodarme, P. G. Prada Moroni, S. Degl'Innocenti

arxiv:2012.08193 v1 · 2020-12-15 · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRAYLQBOA645IOPLFJPSETVIDM}

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	2026-07-05T02:01:19.565402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

844185c02e07b9d439eb2a5f224ea81b20e8c18f55dd148e93f7bd5204dea252

Aliases

arxiv: 2012.08193 · arxiv_version: 2012.08193v1 · doi: 10.48550/arxiv.2012.08193 · pith_short_12: QRAYLQBOA645 · pith_short_16: QRAYLQBOA645IOPL · pith_short_8: QRAYLQBO

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/QRAYLQBOA645IOPLFJPSETVIDM \
  | 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: 844185c02e07b9d439eb2a5f224ea81b20e8c18f55dd148e93f7bd5204dea252

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02ed06bebdac0fc564c8fef2915c318b54afecebd1ee9b1ae77c56cf9b2cf9f6",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-12-15T10:23:39Z",
    "title_canon_sha256": "6bde8c5fa455a86d88c926a664e7b47ecb82478c1d453800c5394c7358c2c43f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.08193",
    "kind": "arxiv",
    "version": 1
  }
}