Pith Number

pith:FCUTILNX

pith:2025:FCUTILNXFTUGRHKW46SRSQUMTV

not attested not anchored not stored refs pending

Puzzling radial gradients of K-band absorption features in the giant elliptical galaxy M87

A. Gargiulo, A. Pasquali, A. Vazdekis, C. Spiniello, E. Eftekhari, F. La Barbera, J. Heidt, L.P. Cassar\`a, M.A. Beasley, M. Sarzi, S. Bisogni

arxiv:2506.05986 v1 · 2025-06-06 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCUTILNXFTUGRHKW46SRSQUMTV}

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	2026-07-05T11:48:49.736844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28a9342db72ce8689d56e7a519428c9d69aa6baffe17ea669b1fe6f48632f166

Aliases

arxiv: 2506.05986 · arxiv_version: 2506.05986v1 · doi: 10.48550/arxiv.2506.05986 · pith_short_12: FCUTILNXFTUG · pith_short_16: FCUTILNXFTUGRHKW · pith_short_8: FCUTILNX

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/FCUTILNXFTUGRHKW46SRSQUMTV \
  | 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: 28a9342db72ce8689d56e7a519428c9d69aa6baffe17ea669b1fe6f48632f166

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3fb1e82e0a0d2fda554a4b9de1648870c524c88b775a9ad037b78d6822f69a9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-06-06T11:13:59Z",
    "title_canon_sha256": "7ca93ace19867c50efb43f4f9873394291848207feda1233fa47541c10296a19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.05986",
    "kind": "arxiv",
    "version": 1
  }
}