Pith Number

pith:EMZ6DEFI

pith:2020:EMZ6DEFIKSNNQNOQU65WESBDOK

not attested not anchored not stored refs pending

Chandra Observations of Candidate Sub-Parsec Binary Supermassive Black Holes

Alexei Vikhlinin, Barry McKernan, Daniel D'Orazio, Daniel Stern, Dominic J. Walton, Hyunsung D. Jun, K.E.S. Ford, Matthew J. Graham, M. Lynne Saade, Murray Brightman, Ralph P. Kraft, S.G. Djorgovski, Zolt\'an Haiman

arxiv:2001.08870 v2 · 2020-01-24 · astro-ph.HE · 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{EMZ6DEFIKSNNQNOQU65WESBDOK}

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.

Cited by

1 paper in Pith

Prospects for Time-Domain and Multi-Messenger Science with eXTP

Receipt and verification

First computed	2026-07-05T01:34:51.647353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2333e190a8549ad835d0a7bb62482372b5aa07709ee5f0fc17ff4a5d0cd56a85

Aliases

arxiv: 2001.08870 · arxiv_version: 2001.08870v2 · doi: 10.48550/arxiv.2001.08870 · pith_short_12: EMZ6DEFIKSNN · pith_short_16: EMZ6DEFIKSNNQNOQ · pith_short_8: EMZ6DEFI

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/EMZ6DEFIKSNNQNOQU65WESBDOK \
  | 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: 2333e190a8549ad835d0a7bb62482372b5aa07709ee5f0fc17ff4a5d0cd56a85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "351bb4bba0164dcb790279db755edb812f0e513572c48458d923e03d92b6edee",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-01-24T03:36:15Z",
    "title_canon_sha256": "7fbbcd985ae69bb0cf8d4fbb146e20659008d86f700be8d178489e11f4d37e24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.08870",
    "kind": "arxiv",
    "version": 2
  }
}