Pith Number

pith:4XAPN4AP

pith:2008:4XAPN4AP74Z7BKDTIX3SXBJUMX

not attested not anchored not stored refs pending

2MASS wide field extinction maps: II. The Ophiuchus and the Lupus cloud complexe

Charles J. Lada, Joao Alves, Marco Lombardi

arxiv:0809.3740 v1 · 2008-09-22 · 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{4XAPN4AP74Z7BKDTIX3SXBJUMX}

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	2026-07-04T15:14:31.219250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5c0f6f00fff33f0a87345f72b853465c955b9bd1966e5ed9d54cdd92f39e130

Aliases

arxiv: 0809.3740 · arxiv_version: 0809.3740v1 · doi: 10.48550/arxiv.0809.3740 · pith_short_12: 4XAPN4AP74Z7 · pith_short_16: 4XAPN4AP74Z7BKDT · pith_short_8: 4XAPN4AP

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/4XAPN4AP74Z7BKDTIX3SXBJUMX \
  | 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: e5c0f6f00fff33f0a87345f72b853465c955b9bd1966e5ed9d54cdd92f39e130

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bb2eabcdddc2044f5d62e979f291d12f3f8ec06021929a71b21da7e7648f759",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-22T16:51:03Z",
    "title_canon_sha256": "7902d6b60fb3c17a2a94bc7b5a77f4769248fe162e2a541055388c276cf82e43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3740",
    "kind": "arxiv",
    "version": 1
  }
}