Pith Number

pith:UKHVGM4Z

pith:2017:UKHVGM4ZXAPH7YQZWWBHKS6OU6

not attested not anchored not stored refs pending

J0815+4729: A chemically primitive dwarf star in the Galactic Halo observed with Gran Telescopio Canarias

C. Allende Prieto, D.S. Aguado, J.I. Gonz\'alez Hern\'andez, R. Rebolo

arxiv:1712.06487 v1 · 2017-12-18 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UKHVGM4ZXAPH7YQZWWBHKS6OU6}

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	2026-05-18T00:26:23.278260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a28f533399b81e7fe219b582754bcea795d866ea3974cdef9690d1b5096d8c92

Aliases

arxiv: 1712.06487 · arxiv_version: 1712.06487v1 · doi: 10.48550/arxiv.1712.06487 · pith_short_12: UKHVGM4ZXAPH · pith_short_16: UKHVGM4ZXAPH7YQZ · pith_short_8: UKHVGM4Z

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/UKHVGM4ZXAPH7YQZWWBHKS6OU6 \
  | 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: a28f533399b81e7fe219b582754bcea795d866ea3974cdef9690d1b5096d8c92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d13105024f364351251fe8b65e195bff62acf3c738fb042c19f8fba5826138d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-12-18T16:03:47Z",
    "title_canon_sha256": "922a11d8abda7be4df27e17c2b1fef7ea77b3cd24c4e0a366e562b571f97d28b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.06487",
    "kind": "arxiv",
    "version": 1
  }
}