Pith Number

pith:NHDWAM7W

pith:2018:NHDWAM7WVC2QRYEJY7UQBUT5IA

not attested not anchored not stored refs pending

The nature of the variable millimetre-selected AGN in the Brightest Cluster Galaxy of Abell 851

A. C. Edge, J. E. Geach, R. A. Cheale (Hertfordshire), T. Cantwell, Y. C. Perrott

arxiv:1809.01700 v1 · 2018-09-05 · 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{NHDWAM7WVC2QRYEJY7UQBUT5IA}

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	2026-05-18T00:06:22.144452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69c76033f6a8b508e089c7e900d27d401ccadddc4845c5f0583ce5ed953da7f3

Aliases

arxiv: 1809.01700 · arxiv_version: 1809.01700v1 · doi: 10.48550/arxiv.1809.01700 · pith_short_12: NHDWAM7WVC2Q · pith_short_16: NHDWAM7WVC2QRYEJ · pith_short_8: NHDWAM7W

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/NHDWAM7WVC2QRYEJY7UQBUT5IA \
  | 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: 69c76033f6a8b508e089c7e900d27d401ccadddc4845c5f0583ce5ed953da7f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24e618cb90c1e8b5728a4161c991716224423d8156770514b014917d3271fba2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-09-05T19:24:18Z",
    "title_canon_sha256": "d43e2c1dd5a4e6a0b91f4bfb6dabe924ac425edcb0ad018cc1605c3b4a844742"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01700",
    "kind": "arxiv",
    "version": 1
  }
}