Pith Number

pith:64FR3DEK

pith:2008:64FR3DEKIFMHDUNZW3MAOLXSPV

not attested not anchored not stored refs pending

The Lacerta OB1 Association

H. T. Lee, W. P. Chen

arxiv:0811.0443 v1 · 2008-11-04 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{64FR3DEKIFMHDUNZW3MAOLXSPV}

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	2026-07-04T15:15:43.917216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f70b1d8c8a415871d1b9b6d8072ef27d63220fddb044d3c86f2156b29c04284d

Aliases

arxiv: 0811.0443 · arxiv_version: 0811.0443v1 · doi: 10.48550/arxiv.0811.0443 · pith_short_12: 64FR3DEKIFMH · pith_short_16: 64FR3DEKIFMHDUNZ · pith_short_8: 64FR3DEK

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/64FR3DEKIFMHDUNZW3MAOLXSPV \
  | 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: f70b1d8c8a415871d1b9b6d8072ef27d63220fddb044d3c86f2156b29c04284d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b20bfc99a2ad25948eb389a28235da19471660a4a141df6feabbcd0b72a44fce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-04T10:59:48Z",
    "title_canon_sha256": "7c02e28bf7cec4005b8cdaa3630179be44f4f0b8c2bff88e41e32c3139ec3608"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.0443",
    "kind": "arxiv",
    "version": 1
  }
}