Pith Number

pith:25NEDLW2

pith:2021:25NEDLW2WB3SL4AXHHL5PYFTDO

not attested not anchored not stored refs pending

Hypercubes of AGN Tori (HYPERCAT) -- II. Resolving the Torus with Extremely Large Telescopes

A. Alonso-Herrero, C. Packham, E. Lopez-Rodriguez, K. Ichikawa, N. A. Levenson, R. Nikutta, S. F. H\"onig

arxiv:2109.12130 v1 · 2021-09-24 · 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{25NEDLW2WB3SL4AXHHL5PYFTDO}

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	2026-07-05T03:42:49.714735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d75a41aedab07725f01739d7d7e0b31b8aaa19fe67bdd31c0455515f793411cd

Aliases

arxiv: 2109.12130 · arxiv_version: 2109.12130v1 · doi: 10.48550/arxiv.2109.12130 · pith_short_12: 25NEDLW2WB3S · pith_short_16: 25NEDLW2WB3SL4AX · pith_short_8: 25NEDLW2

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/25NEDLW2WB3SL4AXHHL5PYFTDO \
  | 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: d75a41aedab07725f01739d7d7e0b31b8aaa19fe67bdd31c0455515f793411cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e5c00074581b25d4eb24095a2ef8f637d30e3a9e3a954b0999399ec6edb8248",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-24T18:00:11Z",
    "title_canon_sha256": "a22a9871c78bfa2fa8fab1cd856b91453ed6d226dbe7ce72a33c00fc068cfaad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.12130",
    "kind": "arxiv",
    "version": 1
  }
}