Pith Number

pith:VVTJHINR

pith:2017:VVTJHINRXBLIA5V3UJXYEIGMLK

not attested not anchored not stored refs pending

New ultra metal-poor stars from SDSS: follow-up GTC medium-resolution spectroscopy

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

arxiv:1706.04179 v2 · 2017-06-13 · 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{VVTJHINRXBLIA5V3UJXYEIGMLK}

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	2026-05-18T00:39:31.626767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad6693a1b1b8568076bba26f8220cc5a9e42765824b81d7ce12b5c3fc041bc13

Aliases

arxiv: 1706.04179 · arxiv_version: 1706.04179v2 · doi: 10.48550/arxiv.1706.04179 · pith_short_12: VVTJHINRXBLI · pith_short_16: VVTJHINRXBLIA5V3 · pith_short_8: VVTJHINR

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/VVTJHINRXBLIA5V3UJXYEIGMLK \
  | 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: ad6693a1b1b8568076bba26f8220cc5a9e42765824b81d7ce12b5c3fc041bc13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9551ea57eb3467098eacc650991d3b79ac19bc4f07a2140a5cd22b2b526d67ef",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-06-13T17:45:38Z",
    "title_canon_sha256": "265c325cf673d8e8cdef9de495eb29363429b1abcc24c6ae3741f0e0a32b51a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.04179",
    "kind": "arxiv",
    "version": 2
  }
}