Pith Number

pith:H742MBQB

pith:2021:H742MBQBH7FPW4ONHKQY2U47AE

not attested not anchored not stored refs pending

The Tully-Fisher relation in dense groups at $z \sim 0.7$ in the MAGIC survey

Beno\^it Epinat, Davor Krajnovi\'c, Emmy Ventou, Guillaume Mahler, Hayley Finley, Jarle Brinchmann, Johan Richard, Juan C. B. Pineda, Leindert A. Boogaard, L\'eo Michel-Dansac, Philipe Amram, Thierry Contini, Valentina Abril-Melgarejo, Wilfried Mercier

arxiv:2101.08069 v3 · 2021-01-20 · 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{H742MBQBH7FPW4ONHKQY2U47AE}

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	2026-07-05T06:10:13.418717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ff9a606013fcafb71cd3aa18d539f011da36cd21447fba56d61a4b019c43723

Aliases

arxiv: 2101.08069 · arxiv_version: 2101.08069v3 · doi: 10.48550/arxiv.2101.08069 · pith_short_12: H742MBQBH7FP · pith_short_16: H742MBQBH7FPW4ON · pith_short_8: H742MBQB

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/H742MBQBH7FPW4ONHKQY2U47AE \
  | 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: 3ff9a606013fcafb71cd3aa18d539f011da36cd21447fba56d61a4b019c43723

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64bba8339bd2f5617a3b83f7d15490fa00f4af25af8bc31712ef089ad4040eaa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-01-20T11:08:04Z",
    "title_canon_sha256": "95729d5706ddc0d64a4813c52a2f98d125c63aff8e4bcb70ec98d69566b70937"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.08069",
    "kind": "arxiv",
    "version": 3
  }
}