Pith Number

pith:B7ARJWGX

pith:2026:B7ARJWGXPKRKJPHWSGB4JJIB3J

not attested not anchored not stored refs pending

Optical concept model of the future cosmology project BISOU

Bruno Maffei, Creidhe O'Sullivan, Morgane Loquet Le Gall, Neil Trappe, Pierre Guiot

arxiv:2608.13257 v1 · 2026-08-13 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B7ARJWGXPKRKJPHWSGB4JJIB3J}

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	2026-08-14T01:00:47.046051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fc114d8d77aa2a4bcf69183c4a501da74f0f9ecd95898fb67d93aab261b41a9

Aliases

arxiv: 2608.13257 · arxiv_version: 2608.13257v1 · doi: 10.48550/arxiv.2608.13257 · pith_short_12: B7ARJWGXPKRK · pith_short_16: B7ARJWGXPKRKJPHW · pith_short_8: B7ARJWGX

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/B7ARJWGXPKRKJPHWSGB4JJIB3J \
  | 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: 0fc114d8d77aa2a4bcf69183c4a501da74f0f9ecd95898fb67d93aab261b41a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c9615c7f66ef8a140242c42684b7c64d2fe2255c79641610a638ae6f8c33ffd",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-08-13T13:57:55Z",
    "title_canon_sha256": "72ddbcafbafe44d79f48807609d2779e9e4269bcf42217aa5f915c701f9c680b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.13257",
    "kind": "arxiv",
    "version": 1
  }
}