Pith Number

pith:CTOZ7PBL

pith:2019:CTOZ7PBLJ7LOXXRLA32NNJN7KH

not attested not anchored not stored refs pending

The cosmic evolution of the stellar mass$-$velocity dispersion relation of early-type galaxies

Alessandro Sonnenfeld, Carlo Cannarozzo, Carlo Nipoti

arxiv:1910.06987 v2 · 2019-10-15 · 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{CTOZ7PBLJ7LOXXRLA32NNJN7KH}

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	2026-07-05T01:26:06.205533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14dd9fbc2b4fd6ebde2b06f4d6a5bf51eecb5d2b9be8bfd8dd55d3db01de0448

Aliases

arxiv: 1910.06987 · arxiv_version: 1910.06987v2 · doi: 10.48550/arxiv.1910.06987 · pith_short_12: CTOZ7PBLJ7LO · pith_short_16: CTOZ7PBLJ7LOXXRL · pith_short_8: CTOZ7PBL

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/CTOZ7PBLJ7LOXXRLA32NNJN7KH \
  | 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: 14dd9fbc2b4fd6ebde2b06f4d6a5bf51eecb5d2b9be8bfd8dd55d3db01de0448

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09b89b19ed1a436c09176e019bff3e2f753db76f73bb6f2662b1a93d6aa0d593",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-10-15T18:14:56Z",
    "title_canon_sha256": "f70d7c29880942f007e4cd06697da8f9509e02667f16049a18220324c68eb419"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.06987",
    "kind": "arxiv",
    "version": 2
  }
}