Pith Number

pith:HRE27BQE

pith:2015:HRE27BQEN6ZI4TLLTUXF4B3IOA

not attested not anchored not stored refs pending

Seeding High Redshift QSOs by Collisional Runaway in Primordial Star Clusters

Debora Sijacki, Harley Katz, Martin G. Haehnelt

arxiv:1502.03448 v2 · 2015-02-11 · 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{HRE27BQEN6ZI4TLLTUXF4B3IOA}

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	2026-05-18T01:24:30.416007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c49af86046fb28e4d6b9d2e5e07687033bd72a1aab3eea32807134f476ae53a

Aliases

arxiv: 1502.03448 · arxiv_version: 1502.03448v2 · doi: 10.48550/arxiv.1502.03448 · pith_short_12: HRE27BQEN6ZI · pith_short_16: HRE27BQEN6ZI4TLL · pith_short_8: HRE27BQE

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/HRE27BQEN6ZI4TLLTUXF4B3IOA \
  | 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: 3c49af86046fb28e4d6b9d2e5e07687033bd72a1aab3eea32807134f476ae53a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1cfbc982e2b399692922f77ccf6f810d90e51cd35ec4801ffe48cf3233b52655",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-11T21:00:47Z",
    "title_canon_sha256": "bf3c70c6f2b6fd71837f39ab8daceaf49a7e4e7094284255d5242a17f597ccd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03448",
    "kind": "arxiv",
    "version": 2
  }
}