Pith Number

pith:76XSJC5A

pith:2016:76XSJC5ATVLUZISM6VPVTJMJXQ

not attested not anchored not stored refs pending

Possible Evolution of Supermassive Black Holes from FRI quasars

Damian J. Christian, David Garofalo, Jaclyn D'Avanzo, Matthew I. Kim

arxiv:1605.04214 v2 · 2016-05-13 · astro-ph.HE · astro-ph.CO · 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{76XSJC5ATVLUZISM6VPVTJMJXQ}

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	2026-05-18T01:12:01.333949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffaf248ba09d574ca24cf55f59a589bc04e26a6a8614f598bae4f90d400a504e

Aliases

arxiv: 1605.04214 · arxiv_version: 1605.04214v2 · doi: 10.48550/arxiv.1605.04214 · pith_short_12: 76XSJC5ATVLU · pith_short_16: 76XSJC5ATVLUZISM · pith_short_8: 76XSJC5A

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/76XSJC5ATVLUZISM6VPVTJMJXQ \
  | 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: ffaf248ba09d574ca24cf55f59a589bc04e26a6a8614f598bae4f90d400a504e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba450421f89f5b83f2659f62713325a9bbb3011b3ff2b179bcc7cb0d11c36388",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-05-13T15:31:13Z",
    "title_canon_sha256": "c934421724e722350550ff57df85da724a6619e9db03a377b33d16d05ff0c5f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.04214",
    "kind": "arxiv",
    "version": 2
  }
}