Pith Number

pith:NB5Y2PBR

pith:2012:NB5Y2PBRWRI4N64ED45M6IR2MC

not attested not anchored not stored refs pending

The GREGOR solar telescope on Tenerife

Andreas Lagg, Axel Hofmann, Carsten Denker, Dirk Schmidt, Dirk Soltau, Franz Kneer, Horst Balthasar, Klaus Puschmann, Klaus Strassmeier, Manuel Collados, Michal Sobotka, Nazaret Bello Gonzalez, Oskar von der L\"uhe, Reiner Volkmer, Sami Solanki, Thomas Berkefeld, Wolfgang Schmidt

arxiv:1202.4289 v1 · 2012-02-20 · 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{NB5Y2PBRWRI4N64ED45M6IR2MC}

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	2026-05-18T03:31:06.941122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

687b8d3c31b451c6fb841f3acf223a609376b300d30c4609ed77b9f620673257

Aliases

arxiv: 1202.4289 · arxiv_version: 1202.4289v1 · doi: 10.48550/arxiv.1202.4289 · pith_short_12: NB5Y2PBRWRI4 · pith_short_16: NB5Y2PBRWRI4N64E · pith_short_8: NB5Y2PBR

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/NB5Y2PBRWRI4N64ED45M6IR2MC \
  | 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: 687b8d3c31b451c6fb841f3acf223a609376b300d30c4609ed77b9f620673257

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a0a888c592203eba3970e596d606fdf97beb7e70e4e94bffb3749be1799d96f",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-02-20T11:03:41Z",
    "title_canon_sha256": "bf244c5bb59d24f1c755b1799f1aba4a696604d4def2872dacc032a331225c76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4289",
    "kind": "arxiv",
    "version": 1
  }
}