Pith Number

pith:2PUBEI4B

pith:2020:2PUBEI4BXRWVIQ6VYECBIGWV7C

not attested not anchored not stored refs pending

A Gaia Survey for Young Stars Associated with the Lupus Clouds

K. L. Luhman

arxiv:2009.05123 v1 · 2020-09-10 · 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{2PUBEI4BXRWVIQ6VYECBIGWV7C}

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	2026-07-05T01:40:44.552838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3e8122381bc6d5443d5c104141ad5f8af94c8cb6f30e713c1f204c7d39d68cd

Aliases

arxiv: 2009.05123 · arxiv_version: 2009.05123v1 · doi: 10.48550/arxiv.2009.05123 · pith_short_12: 2PUBEI4BXRWV · pith_short_16: 2PUBEI4BXRWVIQ6V · pith_short_8: 2PUBEI4B

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/2PUBEI4BXRWVIQ6VYECBIGWV7C \
  | 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: d3e8122381bc6d5443d5c104141ad5f8af94c8cb6f30e713c1f204c7d39d68cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "680306b8052431acbcb0a29534e7df752067f50cddd8fd78146f98600dba12a3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-09-10T19:48:00Z",
    "title_canon_sha256": "781de821092be9d7c3f2fe089e37d98bed40bb86cab6045ba58411fd29a3aab7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.05123",
    "kind": "arxiv",
    "version": 1
  }
}