Pith Number

pith:CD7OEAWY

pith:2015:CD7OEAWYJVWRLWR23GCIVGVNIB

not attested not anchored not stored refs pending

High-Resolution Spectroscopic Study of Extremely Metal-Poor Star Candidates from the SkyMapper Survey

Andrew R. Casey (U. Cambridge), Anna F. Marino (ANU), Anna Frebel (MIT), Brian P. Schmidt (ANU), David Yong (ANU), Gary S. Da Costa (ANU), Heather. R. Jacobson (MIT), Jennifer M. Walsh (Harvard), John E. Norris (ANU), Jose M. Pena (MIT), Karin Lind (U. Uppsala), Martin Asplund (ANU), Michael S. Bessell (ANU), Patrick Tisserand (ANU), Qinsi Yu (MIT), Stefan Keller (ANU)

arxiv:1504.03344 v2 · 2015-04-13 · 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{CD7OEAWYJVWRLWR23GCIVGVNIB}

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	2026-05-18T01:37:01.549662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10fee202d84d6d15da3ad9848a9aad4047ed15f57bf54b883698b57025ad74ff

Aliases

arxiv: 1504.03344 · arxiv_version: 1504.03344v2 · doi: 10.48550/arxiv.1504.03344 · pith_short_12: CD7OEAWYJVWR · pith_short_16: CD7OEAWYJVWRLWR2 · pith_short_8: CD7OEAWY

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/CD7OEAWYJVWRLWR23GCIVGVNIB \
  | 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: 10fee202d84d6d15da3ad9848a9aad4047ed15f57bf54b883698b57025ad74ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5fd89cc8430a32a3be4246469cc529837ed99d9760e38dc207e3a94eccc79c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-13T20:08:22Z",
    "title_canon_sha256": "a073be3c452251a7a1f3bf04c4cc7c3e15a0af1a868a63cf308f82eab0b7c95c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03344",
    "kind": "arxiv",
    "version": 2
  }
}