Pith Number

pith:DT5EB5JQ

pith:2026:DT5EB5JQ3YYRXDJ5I6P6C5AZSK

not attested not anchored not stored refs pending

Carbon Abundances in Metal-Poor Stars Reveal Distinct Galaxy and Star Formation Pathways in the Early Universe

Alexander Yelland, Anna Frebel, Mohammad K. Mardini, Sarah Hughes, Xiaowei Ou

arxiv:2606.12617 v1 · 2026-06-10 · 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{DT5EB5JQ3YYRXDJ5I6P6C5AZSK}

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	2026-06-12T00:07:56.476619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cfa40f530de311b8d3d479fe17419929ba201d74793ec196a67b9a27cee0838

Aliases

arxiv: 2606.12617 · arxiv_version: 2606.12617v1 · doi: 10.48550/arxiv.2606.12617 · pith_short_12: DT5EB5JQ3YYR · pith_short_16: DT5EB5JQ3YYRXDJ5 · pith_short_8: DT5EB5JQ

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/DT5EB5JQ3YYRXDJ5I6P6C5AZSK \
  | 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: 1cfa40f530de311b8d3d479fe17419929ba201d74793ec196a67b9a27cee0838

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec8063285874788c92c99c68c4049479b8a6460f557933daf2d8e7e6fe76bb02",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-06-10T19:20:10Z",
    "title_canon_sha256": "b20ba249ba955c7464a2506d48431dd756e0125f9c0892809899d8ac38a73b8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.12617",
    "kind": "arxiv",
    "version": 1
  }
}