Pith Number

pith:2VFGOUKM

pith:2018:2VFGOUKMXHC6UBLNAZHWAE2BHN

not attested not anchored not stored refs pending

ALMA Observations of the Molecular Gas in the Elliptical Galaxy NGC3557

B. Vila-Vilaro, D. Espada, E. Pompei, J. Cepa, P. Cortes, S. Leon

arxiv:1812.05385 v1 · 2018-12-13 · 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{2VFGOUKMXHC6UBLNAZHWAE2BHN}

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	2026-05-17T23:56:44.591963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d54a67514cb9c5ea056d064f6013413b7e2f11120c2adcc269c59930a0c7be42

Aliases

arxiv: 1812.05385 · arxiv_version: 1812.05385v1 · doi: 10.48550/arxiv.1812.05385 · pith_short_12: 2VFGOUKMXHC6 · pith_short_16: 2VFGOUKMXHC6UBLN · pith_short_8: 2VFGOUKM

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/2VFGOUKMXHC6UBLNAZHWAE2BHN \
  | 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: d54a67514cb9c5ea056d064f6013413b7e2f11120c2adcc269c59930a0c7be42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78d04d2beb337878198f2943d28607b7955c51f08bbb57534fc326153726e2c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-13T12:40:02Z",
    "title_canon_sha256": "430c93ffc79376911f41f98f4ffebc43ff7474fe2a3e63c0d2f5b7befe18b00c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05385",
    "kind": "arxiv",
    "version": 1
  }
}