Pith Number

pith:OUYCVNFV

pith:2013:OUYCVNFVFCDWWBFGXPONN4ZUDN

not attested not anchored not stored refs pending

Impact of baryonic streaming velocities on the formation of supermassive black holes via direct collapse

D. R. G. Schleicher, J. C. Niemeyer, M. A. Latif

arxiv:1311.5866 v2 · 2013-11-22 · 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{OUYCVNFVFCDWWBFGXPONN4ZUDN}

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	2026-05-18T01:46:06.864574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75302ab4b528876b04a6bbdcd6f3341b436653c8f35563b543f228ec38b1c760

Aliases

arxiv: 1311.5866 · arxiv_version: 1311.5866v2 · doi: 10.48550/arxiv.1311.5866 · pith_short_12: OUYCVNFVFCDW · pith_short_16: OUYCVNFVFCDWWBFG · pith_short_8: OUYCVNFV

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/OUYCVNFVFCDWWBFGXPONN4ZUDN \
  | 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: 75302ab4b528876b04a6bbdcd6f3341b436653c8f35563b543f228ec38b1c760

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79249540a38f42dd803872cebe06cddd52195986033d5ec4f9a9bc2ad2080ecf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-22T20:11:56Z",
    "title_canon_sha256": "80ac0561be87f406725ad299b19307bb2a5f3ab5074c3080b89cdcf6517326e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5866",
    "kind": "arxiv",
    "version": 2
  }
}