Pith Number

pith:MAVGIKAG

pith:1999:MAVGIKAGKYJLLJ7AA3NZK2IN4L

not attested not anchored not stored refs pending

Near-infrared observations of galaxies in Pisces-Perseus: I. H-band surface photometry of 174 spirals

C. Baffa, C. Giovanardi, D. Pierini, G. Chincarini, G. Gavazzi, G. Moriondo, G. Trinchieri, L.K. Hunt, M. Sperandio, S. Casertano

arxiv:astro-ph/9905063 v1 · 1999-05-06 · 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{MAVGIKAGKYJLLJ7AA3NZK2IN4L}

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	2026-07-04T16:11:11.058934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

602a6428065612b5a7e006db95690de2ee1536af6e628a56a11c36dfd4edcb95

Aliases

arxiv: astro-ph/9905063 · arxiv_version: astro-ph/9905063v1 · doi: 10.48550/arxiv.astro-ph/9905063 · pith_short_12: MAVGIKAGKYJL · pith_short_16: MAVGIKAGKYJLLJ7A · pith_short_8: MAVGIKAG

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/MAVGIKAGKYJLLJ7AA3NZK2IN4L \
  | 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: 602a6428065612b5a7e006db95690de2ee1536af6e628a56a11c36dfd4edcb95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2800ee33128cf3fa8f844fdbed0ce7e0fb50bce8f243305cc9585a5c9a1aba0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-05-06T08:07:51Z",
    "title_canon_sha256": "ffe5aef3a092bc41ced7331c39f46a2548ee4019ac358c40fbb1dea0f6d9d623"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9905063",
    "kind": "arxiv",
    "version": 1
  }
}