Pith Number

pith:XD7W6Q4Y

pith:2013:XD7W6Q4YW5MZ6TF7FU3GS5IE7B

not attested not anchored not stored refs pending

Understanding black hole mass assembly via accretion and mergers at late times in cosmological simulations

Andrea Kulier, Claire N. Lackner, Jeremiah P. Ostriker, Priyamvada Natarajan, Renyue Cen

arxiv:1307.3684 v2 · 2013-07-13 · 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{XD7W6Q4YW5MZ6TF7FU3GS5IE7B}

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	2026-05-18T02:03:45.487986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8ff6f4398b7599f4cbf2d36697504f848be5d547d6149ca8ca074a8089049cb

Aliases

arxiv: 1307.3684 · arxiv_version: 1307.3684v2 · doi: 10.48550/arxiv.1307.3684 · pith_short_12: XD7W6Q4YW5MZ · pith_short_16: XD7W6Q4YW5MZ6TF7 · pith_short_8: XD7W6Q4Y

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/XD7W6Q4YW5MZ6TF7FU3GS5IE7B \
  | 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: b8ff6f4398b7599f4cbf2d36697504f848be5d547d6149ca8ca074a8089049cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5beccf8903deb15a5364a4c715e17978f74fcb5e98540aa614569024fd7e1b70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-13T22:17:24Z",
    "title_canon_sha256": "35164197ff3efb8f1b015d2104862d33921b8d1a17e316647c8040b3d0ef9cec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.3684",
    "kind": "arxiv",
    "version": 2
  }
}