Pith Number

pith:J5EWBDI6

pith:2008:J5EWBDI6CURQWQCJBKSRCBNRUV

not attested not anchored not stored refs pending

The Serpens Molecular Cloud

A.A. Djupvik, C. Eiroa, M.M. Casali

arxiv:0809.3652 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{J5EWBDI6CURQWQCJBKSRCBNRUV}

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	2026-07-04T15:14:30.738962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f49608d1e15230b40490aa51105b1a57fd41a103d4f2a7872243c775d45c7a5

Aliases

arxiv: 0809.3652 · arxiv_version: 0809.3652v1 · doi: 10.48550/arxiv.0809.3652 · pith_short_12: J5EWBDI6CURQ · pith_short_16: J5EWBDI6CURQWQCJ · pith_short_8: J5EWBDI6

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/J5EWBDI6CURQWQCJBKSRCBNRUV \
  | 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: 4f49608d1e15230b40490aa51105b1a57fd41a103d4f2a7872243c775d45c7a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8eabab8511545fce6693dcb2710415d7281e9a9eec50108001af3265beebba04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-22T09:02:29Z",
    "title_canon_sha256": "4a3dde7f9102cc303e9c8e3ae2fa6b7e2728bdc81b8f3f6885b0b49339df3da4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3652",
    "kind": "arxiv",
    "version": 1
  }
}