Pith Number

pith:W7Z2TCP5

pith:2013:W7Z2TCP5XTIGLBLU4CUV2MX7FI

not attested not anchored not stored refs pending

ALMA reveals a warm and compact starburst around a heavily obscured supermassive black hole at z=4.75

A. Comastri, A. Feltre, A. Mignano, C. Norman, C. Vignali, D. Elbaz, E. Daddi, E. Vanzella, F. Calura, F. Pozzi, F. Vito, G. Cresci, G. Zamorani, J. Fritz, K. Iwasawa, M. Brusa, M. Dickinson, M. Massardi, M. Mignoli, R. Gilli, R. Maiolino, V. Casasola

arxiv:1312.1248 v2 · 2013-12-04 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W7Z2TCP5XTIGLBLU4CUV2MX7FI}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:45:58.663711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7f3a989fdbcd0658574e0a95d32ff2a105a4622ccfc057c29d819b1d28d467e

Aliases

arxiv: 1312.1248 · arxiv_version: 1312.1248v2 · doi: 10.48550/arxiv.1312.1248 · pith_short_12: W7Z2TCP5XTIG · pith_short_16: W7Z2TCP5XTIGLBLU · pith_short_8: W7Z2TCP5

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/W7Z2TCP5XTIGLBLU4CUV2MX7FI \
  | 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: b7f3a989fdbcd0658574e0a95d32ff2a105a4622ccfc057c29d819b1d28d467e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2846004be1b54c821fae3525e3c6dac3a9a4230a98105f132702f539c42a522",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-12-04T17:12:24Z",
    "title_canon_sha256": "1e26b04d451dfb151382fd9a346570bda1bff184ac0361161cbb76c75f3bc55c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1248",
    "kind": "arxiv",
    "version": 2
  }
}