Pith Number

pith:PWA2GJXI

pith:2015:PWA2GJXI2RD4XVI6DXKIPJDXAY

not attested not anchored not stored refs pending

Exploring AGN Activity over Cosmic Time with the SKA

Alexander Karim, Isabella Prandoni, Jacinta Delhaize, Jose Afonso, Manuela Magliocchetti, Mattia Vaccari, Matt Jarvis, Minh Huynh, Nicholas Seymour, Paolo Padovani, Vernesa Smolcic

arxiv:1501.04820 v1 · 2015-01-20 · 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{PWA2GJXI2RD4XVI6DXKIPJDXAY}

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	2026-05-18T02:29:02.209604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d81a326e8d447cbd51e1dd487a477061af1e1ca2912da60520c0be4580189b4

Aliases

arxiv: 1501.04820 · arxiv_version: 1501.04820v1 · doi: 10.48550/arxiv.1501.04820 · pith_short_12: PWA2GJXI2RD4 · pith_short_16: PWA2GJXI2RD4XVI6 · pith_short_8: PWA2GJXI

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/PWA2GJXI2RD4XVI6DXKIPJDXAY \
  | 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: 7d81a326e8d447cbd51e1dd487a477061af1e1ca2912da60520c0be4580189b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a94dbedc4ab4e5fa99a9aa1332dd555a817ed8f12d5b7f20b918527cf5e3271a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-20T14:26:50Z",
    "title_canon_sha256": "a68f4056446e7cefc0bf0684861c648a352e9bb9ebd3100e7be483c54312ba0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04820",
    "kind": "arxiv",
    "version": 1
  }
}