Pith Number

pith:6GI57YBE

pith:2009:6GI57YBEITMPLFAMUPC2CQBZ65

not attested not anchored not stored refs pending

The Science Case for Building a Band 1 Receiver Suite for ALMA

A. Hales, A. M. M. Scaife, A. Wootten, B. Mason, B. Matthews, D. Iono, D. Johnstone, D. Scott, F. Yusef-Zadeh, G. Duchene, G. Schieven, H. Shang, J. Di Francesco, J. Wagg, L. Bronfman, M. Cunningham, M. Houde, N. Bartel, P. M. Koch, R. Kothes, S. Casassus, S. Chitsazzadeh, S.-P. Lai, S. Takakuwa, S.-Y. Liu, T. Maccarone

arxiv:0910.1609 v4 · 2009-10-08 · astro-ph.IM · 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{6GI57YBEITMPLFAMUPC2CQBZ65}

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	2026-05-18T03:42:53.407295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f191dfe02444d8f5940ca3c5a14039f76b1cb6c984bbeea802739592c1117e1e

Aliases

arxiv: 0910.1609 · arxiv_version: 0910.1609v4 · doi: 10.48550/arxiv.0910.1609 · pith_short_12: 6GI57YBEITMP · pith_short_16: 6GI57YBEITMPLFAM · pith_short_8: 6GI57YBE

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/6GI57YBEITMPLFAMUPC2CQBZ65 \
  | 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: f191dfe02444d8f5940ca3c5a14039f76b1cb6c984bbeea802739592c1117e1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "799f140010a919172c288899ce4931667a8961ad5e9f2f0c840bb013970bf25c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-10-08T20:26:22Z",
    "title_canon_sha256": "acf7592f403b180d1ed1ddf5771fad080c0e433a605cfb6458c6de8aef69c257"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1609",
    "kind": "arxiv",
    "version": 4
  }
}