Pith Number

pith:KTPJTQZK

pith:2015:KTPJTQZKOISGNFLPFBNSOLOGGG

not attested not anchored not stored refs pending

Nucleosynthesis in a Primordial Supernova: Carbon and Oxygen Abundances in SMSS J031300.36-670839.31

Alexander Heger, Andrew Casey, Anna Frebel, Anna Marino, Brian Schmidt, Conrad Chan, David Yong, Gary Da Costa, Heather Jacobson, John Norris, Karin Lind, Martin Asplund, Michael Bessell, Patrick Tisserand, Remo Collett, Stefan Keller, Thomas Masseron, Zazralt Magic

arxiv:1505.03756 v2 · 2015-05-14 · 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{KTPJTQZKOISGNFLPFBNSOLOGGG}

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	2026-05-18T01:46:14.586263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54de99c32a722466956f285b272dc631adb70d93e2d3e92e4209767c9dcbaf82

Aliases

arxiv: 1505.03756 · arxiv_version: 1505.03756v2 · doi: 10.48550/arxiv.1505.03756 · pith_short_12: KTPJTQZKOISG · pith_short_16: KTPJTQZKOISGNFLP · pith_short_8: KTPJTQZK

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/KTPJTQZKOISGNFLPFBNSOLOGGG \
  | 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: 54de99c32a722466956f285b272dc631adb70d93e2d3e92e4209767c9dcbaf82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3fe2ac2137519ede5c1e53c0ed95eaa8e0cba603c76f3b42e99e5585a9e71ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-14T15:20:09Z",
    "title_canon_sha256": "8483001f90b84eb84ac68ca01140e7909484a2b8df791ce66eff175f30bc3d12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03756",
    "kind": "arxiv",
    "version": 2
  }
}