Pith Number

pith:EBTLZ7YH

pith:2019:EBTLZ7YH76KWYAEW7Q4KI4JKJ2

not attested not anchored not stored refs pending

Constraining the inner density slope of massive galaxy clusters

Carlos S. Frenk, Claudio Dalla Vecchia, David Barnes, Hongyu Li, Liang Gao, Matthieu Schaller, Qiuhan He, Ran Li, Scott T. Kay, Yannick Bah\'e

arxiv:1907.01680 v2 · 2019-07-02 · astro-ph.CO · 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{EBTLZ7YH76KWYAEW7Q4KI4JKJ2}

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	2026-07-05T01:12:20.716902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2066bcff07ff956c0096fc38a4712a4eb02e05270b9fdc85620a7321975af149

Aliases

arxiv: 1907.01680 · arxiv_version: 1907.01680v2 · doi: 10.48550/arxiv.1907.01680 · pith_short_12: EBTLZ7YH76KW · pith_short_16: EBTLZ7YH76KWYAEW · pith_short_8: EBTLZ7YH

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/EBTLZ7YH76KWYAEW7Q4KI4JKJ2 \
  | 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: 2066bcff07ff956c0096fc38a4712a4eb02e05270b9fdc85620a7321975af149

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe8795c5ac413c0452f611edcf4a35238582d6e2fcac310540c8d5aad6054bfd",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-07-02T23:34:53Z",
    "title_canon_sha256": "d09b78dfb1e33423ec7c0b6c0b7283ab9c8971eeab599c8221a98d9eb5090a2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01680",
    "kind": "arxiv",
    "version": 2
  }
}