Pith Number

pith:QFY2W3ZF

pith:2018:QFY2W3ZFG4BPUAFGQB5YX2M3DK

not attested not anchored not stored refs pending

Spatially resolved mass-to-light from the CALIFA survey. Mass-to-light ratio vs. color relations

A. L. de Amorim, E. P\'erez, R. Cid Fernandes, R. Garc\'ia-Benito, R. M. Gonz\'alez Delgado, S. F. S\'anchez

arxiv:1811.08431 v1 · 2018-11-20 · 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{QFY2W3ZFG4BPUAFGQB5YX2M3DK}

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	2026-05-17T23:55:43.712933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8171ab6f253702fa00a6807b8be99b1a8c74902aefc44f6507646cec21d29ae7

Aliases

arxiv: 1811.08431 · arxiv_version: 1811.08431v1 · doi: 10.48550/arxiv.1811.08431 · pith_short_12: QFY2W3ZFG4BP · pith_short_16: QFY2W3ZFG4BPUAFG · pith_short_8: QFY2W3ZF

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/QFY2W3ZFG4BPUAFGQB5YX2M3DK \
  | 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: 8171ab6f253702fa00a6807b8be99b1a8c74902aefc44f6507646cec21d29ae7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b89bb66af499ce9fe70397d625a465fb2629279a58075a897bfbf0682df732e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-20T19:00:00Z",
    "title_canon_sha256": "07745395e349df04d6d38b4d6e3cee3869b3f96e95e7ee76a9e60a3cafe89541"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08431",
    "kind": "arxiv",
    "version": 1
  }
}