Pith Number

pith:M4PMI6KY

pith:2013:M4PMI6KYCCRC6DHN4NSXI5RZVW

not attested not anchored not stored refs pending

High redshift supermassive blackholes: accretion through cold flows

Nishikanta Khandai, Rupert Croft, Tiziana Di Matteo, Yu Feng

arxiv:1312.1391 v1 · 2013-12-05 · 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{M4PMI6KYCCRC6DHN4NSXI5RZVW}

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	2026-05-18T01:45:58.487369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

671ec4795810a22f0cede365747639ad888c287e4173428737935309ad86948e

Aliases

arxiv: 1312.1391 · arxiv_version: 1312.1391v1 · doi: 10.48550/arxiv.1312.1391 · pith_short_12: M4PMI6KYCCRC · pith_short_16: M4PMI6KYCCRC6DHN · pith_short_8: M4PMI6KY

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/M4PMI6KYCCRC6DHN4NSXI5RZVW \
  | 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: 671ec4795810a22f0cede365747639ad888c287e4173428737935309ad86948e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea0c8f4e6f94ddfa10b0d7d08621145a31ae41e5c71ade2e491c22d9e2dfa6df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-12-05T00:02:16Z",
    "title_canon_sha256": "aaf05bf1b8fb48613128e603f3a580c19243fc0ff99f634ec60fc1a9c330f889"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1391",
    "kind": "arxiv",
    "version": 1
  }
}