Pith Number

pith:GLYPQMNP

pith:1997:GLYPQMNPTLQDS6WCN3RQIUE7AZ

not attested not anchored not stored refs pending

A multi-wavelength study of the Seyfert 1 galaxy MCG-6-30-15

A.Celotti (SISSA, A.C.Fabian (IoA, Boulder, Cambridge, C.S.Reynolds (JILA, Italy), M.J.Ward (Leicester, UK), USA)

arxiv:astro-ph/9707160 v1 · 1997-07-14 · 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{GLYPQMNPTLQDS6WCN3RQIUE7AZ}

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	2026-05-18T01:40:17.039873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32f0f831af9ae0397ac26ee304509f06404ca8bb0677ce0a81c99b9c88cb7856

Aliases

arxiv: astro-ph/9707160 · arxiv_version: astro-ph/9707160v1 · doi: 10.48550/arxiv.astro-ph/9707160 · pith_short_12: GLYPQMNPTLQD · pith_short_16: GLYPQMNPTLQDS6WC · pith_short_8: GLYPQMNP

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/GLYPQMNPTLQDS6WCN3RQIUE7AZ \
  | 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: 32f0f831af9ae0397ac26ee304509f06404ca8bb0677ce0a81c99b9c88cb7856

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a70cc2aa927e64dc2000fadb624122dafbc22730293f826f4a6507953bd4b55c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-07-14T23:41:55Z",
    "title_canon_sha256": "d02bec0c3b8d0d04f89b2959be5feb9d3ac2a809b8ab73338a84d445b8e39b36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9707160",
    "kind": "arxiv",
    "version": 1
  }
}