Pith Number

pith:7HW56Q6B

pith:2017:7HW56Q6BQVHSJYVCYAOOZP2YWP

not attested not anchored not stored refs pending

A new gas cooling model for semi-analytical galaxy formation models

Carlos. S. Frenk, Cedric G. Lacey, Jun Hou

arxiv:1708.02950 v2 · 2017-08-09 · 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{7HW56Q6BQVHSJYVCYAOOZP2YWP}

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	2026-05-18T00:24:51.999651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9eddf43c1854f24e2a2c01cecbf58b3e1c0311fe13a9ab63fbf59ef96d7bdb1

Aliases

arxiv: 1708.02950 · arxiv_version: 1708.02950v2 · doi: 10.48550/arxiv.1708.02950 · pith_short_12: 7HW56Q6BQVHS · pith_short_16: 7HW56Q6BQVHSJYVC · pith_short_8: 7HW56Q6B

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/7HW56Q6BQVHSJYVCYAOOZP2YWP \
  | 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: f9eddf43c1854f24e2a2c01cecbf58b3e1c0311fe13a9ab63fbf59ef96d7bdb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3c72d7374de3ff16401ccae595a58ac9b9065b24f80e045b60049c2df2e20d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-08-09T18:00:10Z",
    "title_canon_sha256": "a4eebdacaae160bfca940978773758c6f62e7f0396dc1adedb2986575a4216ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02950",
    "kind": "arxiv",
    "version": 2
  }
}