Pith Number

pith:MCOR7RIK

pith:2014:MCOR7RIKXT6FQALT4DBK3EJ4XY

not attested not anchored not stored refs pending

How realistic UV spectra and X-rays suppress the abundance of direct collapse black holes

D. R. G. Schleicher, M. A. Latif, M. Spaans, S. Bovino, T. Grassi

arxiv:1408.3061 v2 · 2014-08-13 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MCOR7RIKXT6FQALT4DBK3EJ4XY}

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	2026-05-18T01:42:20.922335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

609d1fc50abcfc580173e0c2ad913cbe26c976f3dbed61b1cffa33da391e9fbd

Aliases

arxiv: 1408.3061 · arxiv_version: 1408.3061v2 · doi: 10.48550/arxiv.1408.3061 · pith_short_12: MCOR7RIKXT6F · pith_short_16: MCOR7RIKXT6FQALT · pith_short_8: MCOR7RIK

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/MCOR7RIKXT6FQALT4DBK3EJ4XY \
  | 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: 609d1fc50abcfc580173e0c2ad913cbe26c976f3dbed61b1cffa33da391e9fbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f730fae05fce9d6df6f41457937b3f011b4da8c67793f45f4236ed008b7c5ac6",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-08-13T17:39:58Z",
    "title_canon_sha256": "c7edbb49c641c04bfe47f5abbe3a3d5d8165b03c465224c96b33630b333ad316"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.3061",
    "kind": "arxiv",
    "version": 2
  }
}