Pith Number

pith:6R5VKZ7Y

pith:1998:6R5VKZ7YZ4IQF4YKIBNTLULEQB

not attested not anchored not stored refs pending

Extragalactic database. VII Reduction of astrophysical parameters

C. Petit, G. Paturel, G. Theureau, H. Andernach, H. Di Nella, I. Vauglin, J. Rousseau, L. Bottinelli, L. Gouguenheim, M.C. Marthinet, N. Durand, P. Lanoix, R. Garnier

arxiv:astro-ph/9806140 v1 · 1998-06-10 · 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{6R5VKZ7YZ4IQF4YKIBNTLULEQB}

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	2026-07-04T16:06:45.167248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f47b5567f8cf1102f30a405b35d164805f2293283bce963fbd7891266ce43ef7

Aliases

arxiv: astro-ph/9806140 · arxiv_version: astro-ph/9806140v1 · doi: 10.48550/arxiv.astro-ph/9806140 · pith_short_12: 6R5VKZ7YZ4IQ · pith_short_16: 6R5VKZ7YZ4IQF4YK · pith_short_8: 6R5VKZ7Y

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/6R5VKZ7YZ4IQF4YKIBNTLULEQB \
  | 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: f47b5567f8cf1102f30a405b35d164805f2293283bce963fbd7891266ce43ef7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04c6ad2830ed2c7f896d74c13122149e3d7ca136d21abdbbd0500c5ba07cc2a7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-06-10T11:52:03Z",
    "title_canon_sha256": "bcc38dfafd1a9e2c6ba0693a7798e8430f459ff8326d73788b65a2cf776ceb9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9806140",
    "kind": "arxiv",
    "version": 1
  }
}