Pith Number

pith:67TC4TVH

pith:2009:67TC4TVHX2XKZYYMW7CJUNTMBM

not attested not anchored not stored refs pending

The Gaia Astrometric Survey

A. Sozzetti (INAF - Osservatorio Astronomico di Torino)

arxiv:0909.4465 v1 · 2009-09-24 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{67TC4TVHX2XKZYYMW7CJUNTMBM}

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	2026-05-18T02:11:38.005566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7e62e4ea7beaeace30cb7c49a366c0b302cc6b2891f6b4cccf53ab7aadf8c16

Aliases

arxiv: 0909.4465 · arxiv_version: 0909.4465v1 · doi: 10.48550/arxiv.0909.4465 · pith_short_12: 67TC4TVHX2XK · pith_short_16: 67TC4TVHX2XKZYYM · pith_short_8: 67TC4TVH

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/67TC4TVHX2XKZYYMW7CJUNTMBM \
  | 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: f7e62e4ea7beaeace30cb7c49a366c0b302cc6b2891f6b4cccf53ab7aadf8c16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54a55b4f06754c737f7251d7c0108bd4a96a15828bfa1211b7ed243139b38716",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-09-24T14:41:41Z",
    "title_canon_sha256": "e1e4bc52a7962f17cba7353900b0d965afdfe7fa60c870941dbf26f86461441e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4465",
    "kind": "arxiv",
    "version": 1
  }
}