Pith Number

pith:BWYM2A47

pith:2020:BWYM2A47MNE6XHZHCWFOLAXQ5A

not attested not anchored not stored refs pending

Searching for obscured AGN in z $\sim$ 2 submillimetre galaxies

A. P. Thomson, D. Guidetti, D. M. Alexander, H. Chen, I. McHardy, I. Prandoni, I. Smail, J. F. Radcliffe, M. A. Garrett, M. Bondi, M. K. Argo, N. H. Wrigley, P. D. Barthel, R. J. Beswick, S. Chi, T. W. B. Muxlow

arxiv:2004.09356 v1 · 2020-04-20 · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BWYM2A47MNE6XHZHCWFOLAXQ5A}

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	2026-07-05T01:15:17.234164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0db0cd039f6349eb9f27158ae582f0e81739d16b876b66a2181f5cbb86fbb827

Aliases

arxiv: 2004.09356 · arxiv_version: 2004.09356v1 · doi: 10.48550/arxiv.2004.09356 · pith_short_12: BWYM2A47MNE6 · pith_short_16: BWYM2A47MNE6XHZH · pith_short_8: BWYM2A47

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/BWYM2A47MNE6XHZHCWFOLAXQ5A \
  | 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: 0db0cd039f6349eb9f27158ae582f0e81739d16b876b66a2181f5cbb86fbb827

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a609433ac70e5fa24ecdf549435490dc2a2fceb84d6802ebef9dbd44b8a8d26a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-04-20T15:02:57Z",
    "title_canon_sha256": "01aead3e42e2d213c1966d412babc3814f4183ea173a31b2332038d06ff8889d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.09356",
    "kind": "arxiv",
    "version": 1
  }
}