Pith Number

pith:NRAS7ZAD

pith:2017:NRAS7ZADSXH7ZUIHXOFQSJI2KG

not attested not anchored not stored refs pending

Abundances of the light elements from UV (HST) and red (ESO) spectra in the very old star HD 84937

A. J. Gallagher, B. Barbuy, F. Spite, M. Spite, R. C. Peterson

arxiv:1701.04608 v1 · 2017-01-17 · 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{NRAS7ZADSXH7ZUIHXOFQSJI2KG}

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	2026-05-18T00:52:43.155064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c412fe40395cffcd107bb8b09251a51b48a3517bc88bc11e06fb3bbe4c73943

Aliases

arxiv: 1701.04608 · arxiv_version: 1701.04608v1 · doi: 10.48550/arxiv.1701.04608 · pith_short_12: NRAS7ZADSXH7 · pith_short_16: NRAS7ZADSXH7ZUIH · pith_short_8: NRAS7ZAD

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/NRAS7ZADSXH7ZUIHXOFQSJI2KG \
  | 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: 6c412fe40395cffcd107bb8b09251a51b48a3517bc88bc11e06fb3bbe4c73943

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec1b953a624ccc2da3cc1b3bbe0cb60e806fc78669173ec1fcf3a73457211423",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-01-17T10:30:57Z",
    "title_canon_sha256": "0dd2c8b090fa6f88eb62c1946f4275453d2db30af1975e717b1f7f58da9e06f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04608",
    "kind": "arxiv",
    "version": 1
  }
}