Pith Number

pith:M4HB3RYQ

pith:2016:M4HB3RYQ2NMUA7XZCIG6VSVWBH

not attested not anchored not stored refs pending

Do Some AGN Lack X-ray Emission?

Charlotte Simmonds, Daniel Stern, Fiona A. Harrison, Franz E. Bauer, Trinh X. Thuan, Yuri I. Izotov

arxiv:1609.07619 v1 · 2016-09-24 · 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{M4HB3RYQ2NMUA7XZCIG6VSVWBH}

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	2026-05-18T00:55:41.246502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

670e1dc710d359407ef9120deacab609fbdf0aed6e09108f2f14c0a13d818bf2

Aliases

arxiv: 1609.07619 · arxiv_version: 1609.07619v1 · doi: 10.48550/arxiv.1609.07619 · pith_short_12: M4HB3RYQ2NMU · pith_short_16: M4HB3RYQ2NMUA7XZ · pith_short_8: M4HB3RYQ

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/M4HB3RYQ2NMUA7XZCIG6VSVWBH \
  | 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: 670e1dc710d359407ef9120deacab609fbdf0aed6e09108f2f14c0a13d818bf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16f967913668dd330685604a547f4559707d9d36a59b7f282e7dfdce3fdcfe65",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-09-24T13:33:47Z",
    "title_canon_sha256": "537661c7955cdfeefdbd91f1bbb24d2e4bcf0027729aba891db742a970ac5c87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07619",
    "kind": "arxiv",
    "version": 1
  }
}