Pith Number

pith:4XNUXXR7

pith:2016:4XNUXXR7WBWOT2PV3KWQL5KUAL

not attested not anchored not stored refs pending

Line shifts and sub-pc super-massive binary black holes

Luka C. Popovic, Sasa Simic

arxiv:1601.02007 v1 · 2016-01-08 · 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{4XNUXXR7WBWOT2PV3KWQL5KUAL}

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	2026-05-18T01:22:32.086755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5db4bde3fb06ce9e9f5daad05f55402ec29f97bb19e2de31e62b9b7a60a9d16

Aliases

arxiv: 1601.02007 · arxiv_version: 1601.02007v1 · doi: 10.48550/arxiv.1601.02007 · pith_short_12: 4XNUXXR7WBWO · pith_short_16: 4XNUXXR7WBWOT2PV · pith_short_8: 4XNUXXR7

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/4XNUXXR7WBWOT2PV3KWQL5KUAL \
  | 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: e5db4bde3fb06ce9e9f5daad05f55402ec29f97bb19e2de31e62b9b7a60a9d16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a39106e207a1c6cb7b510ffea58112324520f6a339016cfa2bcac628a693e8ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-01-08T20:43:51Z",
    "title_canon_sha256": "d1f144ae1bc813dc160c87b620ccc946ec14f54c4c755519de647baca9fc8c71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02007",
    "kind": "arxiv",
    "version": 1
  }
}