Pith Number

pith:SMFYSU2H

pith:2014:SMFYSU2H3QDEBYR4DPHNUNSUGZ

not attested not anchored not stored refs pending

Horizon growth of supermassive black hole seeds fed with collisional dark matter

F. D. Lora-Clavijo, F. S. Guzman, M. Gracia-Linares

arxiv:1406.7233 v1 · 2014-06-27 · 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{SMFYSU2H3QDEBYR4DPHNUNSUGZ}

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	2026-05-18T02:45:40.662962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

930b895347dc0640e23c1bceda3654366e1c346d8d9b890af3172cf9cbbe3efb

Aliases

arxiv: 1406.7233 · arxiv_version: 1406.7233v1 · doi: 10.48550/arxiv.1406.7233 · pith_short_12: SMFYSU2H3QDE · pith_short_16: SMFYSU2H3QDEBYR4 · pith_short_8: SMFYSU2H

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/SMFYSU2H3QDEBYR4DPHNUNSUGZ \
  | 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: 930b895347dc0640e23c1bceda3654366e1c346d8d9b890af3172cf9cbbe3efb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5456e1a5f6acbae912f9bee539f670b03c4d9c6e6389c595cbbca332dba366a5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-06-27T16:49:23Z",
    "title_canon_sha256": "aff16df63246d41cee1b2bc0fe985f30d9ca86bb08a069159e8416d42c343dc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7233",
    "kind": "arxiv",
    "version": 1
  }
}