Pith Number

pith:J2KXT7D4

pith:2020:J2KXT7D47UYBSFLSI5WPLZE66L

not attested not anchored not stored refs pending

The ALMA Spectroscopic Survey in the HUDF: The Cosmic Dust and Gas Mass Densities in Galaxies up to $z\sim3$

Axel Weiss, Benjamin Magnelli, Chris Carilli, Dominik Riechers, Elisabete da Cunha, Emanuele Daddi, Fabian Walter, Frank Bertoldi, Franz Erik Bauer, Gerg\"o Popping, Hanae Inami, Hans-Walter Rix, Ian Smail, Jeff Wagg, Jorge G\'onzalez-L\'opez, Leindert Boogaard, Manuel Aravena, Mark T. Sargent, Mladen Novak, Olivier Le F\`evre, Pascal Oesch, Paulo C. Cortes, Paul van der Werf, Robert J. Ivison, Roberto Decarli, Roberto J. Assef, Tanio D\'iaz-Santos

arxiv:2002.08640 v1 · 2020-02-20 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J2KXT7D47UYBSFLSI5WPLZE66L}

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	2026-07-05T00:53:18.149300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e9579fc7cfd30191572476cf5e49ef2cd57b8e6fc6549af3910a175f986f48c

Aliases

arxiv: 2002.08640 · arxiv_version: 2002.08640v1 · doi: 10.48550/arxiv.2002.08640 · pith_short_12: J2KXT7D47UYB · pith_short_16: J2KXT7D47UYBSFLS · pith_short_8: J2KXT7D4

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/J2KXT7D47UYBSFLSI5WPLZE66L \
  | 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: 4e9579fc7cfd30191572476cf5e49ef2cd57b8e6fc6549af3910a175f986f48c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "201a98af8ed570c398200524e072170911357119fb391a680dda46570388e54e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-02-20T09:51:41Z",
    "title_canon_sha256": "824dd47c124669db431fa907ce65f2843efcd611cda270b58548a118634891fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.08640",
    "kind": "arxiv",
    "version": 1
  }
}