Pith Number

pith:O5YNTXAB

pith:2023:O5YNTXABOYDJ5B3VQZTZFWKZS5

not attested not anchored not stored refs pending

On the 12C/13C isotopic ratio at the dawn of chemical evolution

A. Sozzetti, A. Suarez Mascareno, C. Allende Prieto, C.J.A.P. Martins, C. Lovis, D. Milakovic, D. S. Aguado, E. Caffau, F. Pepe, G. Cupani, J. I. Gonzalez Hernandez, M. Murphy, M.R. Zapatero Osorio, N. C. Santos, N.J. Nunes, P. Bonifacio, P. Di Marcantonio, P. Molaro, R. Rebolo, S. Cristiani, S. Sousa, T. M. Schmidt, V. D'Odorico, Y. Alibert

arxiv:2309.11664 v2 · 2023-09-20 · 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{O5YNTXABOYDJ5B3VQZTZFWKZS5}

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	2026-07-05T07:12:37.466040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7770d9dc0176069e8775866792d95997595d0c4fd01294eaa60762ea43e61a74

Aliases

arxiv: 2309.11664 · arxiv_version: 2309.11664v2 · doi: 10.48550/arxiv.2309.11664 · pith_short_12: O5YNTXABOYDJ · pith_short_16: O5YNTXABOYDJ5B3V · pith_short_8: O5YNTXAB

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/O5YNTXABOYDJ5B3VQZTZFWKZS5 \
  | 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: 7770d9dc0176069e8775866792d95997595d0c4fd01294eaa60762ea43e61a74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54503289408065862353e12473dac9bc08d5cfaad1d7c0c1addca1867a63563e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-09-20T22:11:15Z",
    "title_canon_sha256": "4f7384ab54733992fde3fb5d24e807e0954ce60bb568afa821f68c152b8391e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.11664",
    "kind": "arxiv",
    "version": 2
  }
}