Pith Number

pith:7A3VASSA

pith:2015:7A3VASSA3SJNTDWXM5YH5WEFOQ

not attested not anchored not stored refs pending

The role of stellar relaxation in the formation and evolution of the first massive black holes

(2) University of Edinburgh, Hidenobu Yajima (1), Japan, Sadegh Khochfar (2) ((1) Tohoku University, UK)

arxiv:1507.06701 v3 · 2015-07-23 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7A3VASSA3SJNTDWXM5YH5WEFOQ}

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	2026-05-18T01:20:45.794547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f837504a40dc92d98ed767707ed8857439eb9d6dbf1f9fe0039f47b09f0d7880

Aliases

arxiv: 1507.06701 · arxiv_version: 1507.06701v3 · doi: 10.48550/arxiv.1507.06701 · pith_short_12: 7A3VASSA3SJN · pith_short_16: 7A3VASSA3SJNTDWX · pith_short_8: 7A3VASSA

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/7A3VASSA3SJNTDWXM5YH5WEFOQ \
  | 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: f837504a40dc92d98ed767707ed8857439eb9d6dbf1f9fe0039f47b09f0d7880

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfd043c0945f7e06473384b7f1094f7c753eb128f606f0bcdb1d38c00f7d399f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-23T23:21:04Z",
    "title_canon_sha256": "180a142cac2b9e8748dca5e5162eac381a71280d0381fe78983ed4c55bd9fb9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06701",
    "kind": "arxiv",
    "version": 3
  }
}