Pith Number

pith:Q6XRQCKK

pith:2012:Q6XRQCKK72VIGITYTGG746EB6I

not attested not anchored not stored refs pending

Science performance of Gaia, ESA's space-astrometry mission

J. H. J. de Bruijne

arxiv:1201.3238 v1 · 2012-01-16 · astro-ph.IM · 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{Q6XRQCKK72VIGITYTGG746EB6I}

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	2026-05-18T01:58:48.819348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87af18094afeaa832278998dfe7881f219afa7afd462825029a26f6f65452913

Aliases

arxiv: 1201.3238 · arxiv_version: 1201.3238v1 · doi: 10.48550/arxiv.1201.3238 · pith_short_12: Q6XRQCKK72VI · pith_short_16: Q6XRQCKK72VIGITY · pith_short_8: Q6XRQCKK

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/Q6XRQCKK72VIGITYTGG746EB6I \
  | 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: 87af18094afeaa832278998dfe7881f219afa7afd462825029a26f6f65452913

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0a94e06da40d7bd861b01c95441169345802b1b0d34e631fad2fc692b866bc7",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-01-16T12:52:09Z",
    "title_canon_sha256": "2f7f235f48125525ef9e9c7a5182557c4548e61a55a1b4ea9308687921bed3c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3238",
    "kind": "arxiv",
    "version": 1
  }
}