Pith Number

pith:2OG677I6

pith:2000:2OG677I6CFJTBWPVDGEMLTEMWT

not attested not anchored not stored refs pending

Imaging the Universe in 3D with the VLT: The Next Generation Field Spectrometer SPIFFI

C. Roehrle, F. Eisenhauer, J. Schreiber, K. Bickert, M. Tecza, N. Thatte, S. Mengel

arxiv:astro-ph/0008296 v1 · 2000-08-18 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2OG677I6CFJTBWPVDGEMLTEMWT}

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	2026-05-18T01:40:47.363994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d38deffd1e115330d9f51988c5cc8cb4e6d84040afcae7b57e2d222ff47e1ee2

Aliases

arxiv: astro-ph/0008296 · arxiv_version: astro-ph/0008296v1 · doi: 10.48550/arxiv.astro-ph/0008296 · pith_short_12: 2OG677I6CFJT · pith_short_16: 2OG677I6CFJTBWPV · pith_short_8: 2OG677I6

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/2OG677I6CFJTBWPVDGEMLTEMWT \
  | 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: d38deffd1e115330d9f51988c5cc8cb4e6d84040afcae7b57e2d222ff47e1ee2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e701703a6ce888e8efc7a548e6e5b11146a96f7f216628963b1f2671248cb39a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-08-18T16:10:56Z",
    "title_canon_sha256": "e51e6537bfb23040304c7fc8f03482de6d9e92e3da69b296956bc787b56af9e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0008296",
    "kind": "arxiv",
    "version": 1
  }
}