Pith Number

pith:GIG4OY2G

pith:2019:GIG4OY2GELA4OCWPHKJ2MQDZR6

not attested not anchored not stored refs pending

ALMA reveals a pseudo-disc in a proto-brown dwarf

B. Riaz, D. Stamatellos, M. N. Machida

arxiv:1904.06418 v1 · 2019-04-12 · 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{GIG4OY2GELA4OCWPHKJ2MQDZR6}

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	2026-05-17T23:47:55.547833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

320dc7634622c1c70acf3a93a640798faeee6de1d2ec068632215323056e89d7

Aliases

arxiv: 1904.06418 · arxiv_version: 1904.06418v1 · doi: 10.48550/arxiv.1904.06418 · pith_short_12: GIG4OY2GELA4 · pith_short_16: GIG4OY2GELA4OCWP · pith_short_8: GIG4OY2G

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/GIG4OY2GELA4OCWPHKJ2MQDZR6 \
  | 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: 320dc7634622c1c70acf3a93a640798faeee6de1d2ec068632215323056e89d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fdc7b042e0794759839018915971a38bfc97143a3dd0715003f461fa5d00db6",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-04-12T21:06:30Z",
    "title_canon_sha256": "445bf11b3d1d45e2775c1bb74ab1447002dc2e3a3b596de9106d15306f1fa3cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06418",
    "kind": "arxiv",
    "version": 1
  }
}