Pith Number

pith:ZBSW4772

pith:2017:ZBSW4772CRIPMFC4GCA75X22JR

not attested not anchored not stored refs pending

Metallicity evolution of direct collapse black hole hosts: CR7 as a case study

Bhaskar Agarwal, Claes-Erik Rydberg, Eric Pellegrini, Jarrett L. Johnson, Pascal Oesch, Ralf S. Klessen, Sadegh Khochfar

arxiv:1702.00407 v2 · 2017-02-01 · 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{ZBSW4772CRIPMFC4GCA75X22JR}

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	2026-05-18T00:45:53.972637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8656e7ffa1450f6145c3081fedf5a4c5aae88ad94c7eb8e688b31bd7c3faecb

Aliases

arxiv: 1702.00407 · arxiv_version: 1702.00407v2 · doi: 10.48550/arxiv.1702.00407 · pith_short_12: ZBSW4772CRIP · pith_short_16: ZBSW4772CRIPMFC4 · pith_short_8: ZBSW4772

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/ZBSW4772CRIPMFC4GCA75X22JR \
  | 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: c8656e7ffa1450f6145c3081fedf5a4c5aae88ad94c7eb8e688b31bd7c3faecb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4438396c47c4c1bddc99a4a77ba7efd10b8ff576c0da9a3bf1456f74bf2b727",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-02-01T19:00:02Z",
    "title_canon_sha256": "a9331f3732d2848322a4191c88cbec07e4eb72a4c1f426329da69197a8cb9c99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00407",
    "kind": "arxiv",
    "version": 2
  }
}