Pith Number

pith:QHMHGZXW

pith:2018:QHMHGZXWHQUBYVCGGWMXX73LNV

not attested not anchored not stored refs pending

Spectroscopic and astrometric radial velocities: Hyades as a benchmark

H.-G. Ludwig, I. C. Le\~ao, J. R. De Medeiros, L. Pasquini

arxiv:1811.08771 v1 · 2018-11-20 · astro-ph.GA · 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{QHMHGZXWHQUBYVCGGWMXX73LNV}

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	2026-05-17T23:56:16.767657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81d87366f63c281c544635997bff6b6d7ab5700cdada22551e30568fba911653

Aliases

arxiv: 1811.08771 · arxiv_version: 1811.08771v1 · doi: 10.48550/arxiv.1811.08771 · pith_short_12: QHMHGZXWHQUB · pith_short_16: QHMHGZXWHQUBYVCG · pith_short_8: QHMHGZXW

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/QHMHGZXWHQUBYVCGGWMXX73LNV \
  | 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: 81d87366f63c281c544635997bff6b6d7ab5700cdada22551e30568fba911653

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52ee135e8ba0b50909ab6293967f45f550fda0a048a786d5f379afa5ab4b83dd",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-20T17:40:04Z",
    "title_canon_sha256": "006c5e73aef714c60b538d003ca079d65e261c7e6f6afc8de005cfc4ca1a1fa2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08771",
    "kind": "arxiv",
    "version": 1
  }
}