Pith Number

pith:2Q4ZQJNR

pith:2019:2Q4ZQJNRZVQU4SCKYUULMRZ4LS

not attested not anchored not stored refs pending

Astronomical distance scales in the Gaia era

F. Mignard

arxiv:1906.09040 v1 · 2019-06-21 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Q4ZQJNRZVQU4SCKYUULMRZ4LS}

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	2026-05-17T23:42:44.733881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4399825b1cd614e484ac528b6473c5c9e68f1da044b27721b27c2b27ad55e2e

Aliases

arxiv: 1906.09040 · arxiv_version: 1906.09040v1 · doi: 10.48550/arxiv.1906.09040 · pith_short_12: 2Q4ZQJNRZVQU · pith_short_16: 2Q4ZQJNRZVQU4SCK · pith_short_8: 2Q4ZQJNR

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/2Q4ZQJNRZVQU4SCKYUULMRZ4LS \
  | 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: d4399825b1cd614e484ac528b6473c5c9e68f1da044b27721b27c2b27ad55e2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce782f635745a44ab4d4f17e8b39a50e4b7a2e32d018dc41f9a6b514903a96a6",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-06-21T10:09:51Z",
    "title_canon_sha256": "a0d0c3cbf2ddfebeff0bf78b5af567ca20c62c82a865ea217606f66879303f28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09040",
    "kind": "arxiv",
    "version": 1
  }
}