Pith Number

pith:2OSDXV64

pith:2016:2OSDXV64OQJS6UP2ITR3RKD3ZK

not attested not anchored not stored refs pending

Testing the Completeness of the SDSS Colour Selection for Ultramassive, Slowly Spinning Black Holes

Benny Trakhtenbrot, Caroline Bertemes, Chris Done, Kevin Schawinski, Martin Elvis

arxiv:1609.00376 v1 · 2016-09-01 · 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{2OSDXV64OQJS6UP2ITR3RKD3ZK}

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	2026-05-18T01:01:22.244057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3a43bd7dc74132f51fa44e3b8a87bca94faaeb3edc0a03733d29fedb7d5cb6b

Aliases

arxiv: 1609.00376 · arxiv_version: 1609.00376v1 · doi: 10.48550/arxiv.1609.00376 · pith_short_12: 2OSDXV64OQJS · pith_short_16: 2OSDXV64OQJS6UP2 · pith_short_8: 2OSDXV64

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/2OSDXV64OQJS6UP2ITR3RKD3ZK \
  | 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: d3a43bd7dc74132f51fa44e3b8a87bca94faaeb3edc0a03733d29fedb7d5cb6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fc2fe5d61a8071c8a189b27ca2d770abe4b702498249cff5a3cd597235c24a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-09-01T20:00:01Z",
    "title_canon_sha256": "de1724081ef6e40f78e024d18daa24a54fc04bbf0ca255883dd02c470fc130da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00376",
    "kind": "arxiv",
    "version": 1
  }
}