Pith Number

pith:VCN2W5UD

pith:2011:VCN2W5UDESQQIAPJ7AIFUDJDCC

not attested not anchored not stored refs pending

The SONG project and the prototype node at Tenerife

A. N. Soerensen, E. Weiss, F. Grundahl, H. Kjeldsen, J. Christensen-Dalsgaard, J. Skottfelt, K. Harpsoee, K. Uytterhoeven, M. Fredslund Andersen, P. K. Rasmussen, P. L. Palle, S. Frandsen, U. G. Joergensen

arxiv:1111.1834 v1 · 2011-11-08 · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VCN2W5UDESQQIAPJ7AIFUDJDCC}

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	2026-05-18T04:09:24.630621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a89bab768324a10401e9f8105a0d2310b97f90b162584a79040a1179ae16f2ae

Aliases

arxiv: 1111.1834 · arxiv_version: 1111.1834v1 · doi: 10.48550/arxiv.1111.1834 · pith_short_12: VCN2W5UDESQQ · pith_short_16: VCN2W5UDESQQIAPJ · pith_short_8: VCN2W5UD

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/VCN2W5UDESQQIAPJ7AIFUDJDCC \
  | 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: a89bab768324a10401e9f8105a0d2310b97f90b162584a79040a1179ae16f2ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "024fd050be7d2a2f9f325a2ca27f8c48b9c7e9796160741487d8acf1a01f2236",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-11-08T09:21:46Z",
    "title_canon_sha256": "e3e4e2b72474248032f488c9dd57ad85e2e81f6f4fa5e7917f1a6f425e1998ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1834",
    "kind": "arxiv",
    "version": 1
  }
}