Pith Number

pith:534ZLQ7K

pith:2021:534ZLQ7K3MFQBPY4BUBPIBBJAA

not attested not anchored not stored refs pending

B-BOP, the SPICA Imaging Polarimeter

Abdelkader Aliane, Albrecht Poglitsch, Amala Demonti, Beno\^it Marquet, Camille Gennet, Cyrille Delisle, Didier Dubreuil, Eric Doumayrou, Fran\c{c}ois Visticot, Hacile Kaya, Jacques Delabrouille, Javier Perez, Jean-Yves Plesseria, J\'er\^ome Martignac, Josefina Torres Redondo, Laurent Dussopt, Lionel Duband, Louis Rodriguez, Marcos Chimeno, Marc Sauvage, Michel Berth\'e, Oba\"id Adami, Olivier Gevin, Paco Najarro, Pierre-Antoine Frugier, Sophie Bounissou, Sylvain Martin, Val\'erie Goudon, Vincent Rev\'eret, Xavier de la Bro\"ise, Xavier-Fran\c{c}ois Navick

arxiv:2102.07885 v1 · 2021-02-15 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{534ZLQ7K3MFQBPY4BUBPIBBJAA}

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	2026-07-05T02:15:44.363642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eef995c3eadb0b00bf1c0d02f40429000aa7ed8356f286300a658d9c38c35ad4

Aliases

arxiv: 2102.07885 · arxiv_version: 2102.07885v1 · doi: 10.48550/arxiv.2102.07885 · pith_short_12: 534ZLQ7K3MFQ · pith_short_16: 534ZLQ7K3MFQBPY4 · pith_short_8: 534ZLQ7K

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/534ZLQ7K3MFQBPY4BUBPIBBJAA \
  | 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: eef995c3eadb0b00bf1c0d02f40429000aa7ed8356f286300a658d9c38c35ad4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47326223f3d89bd7317a3b57618d2dfd8e19e7c79f1ad008aaac7d9ee3047914",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-02-15T22:55:12Z",
    "title_canon_sha256": "d4b289e86b32be6d06b3bb17e7806a66f7bacb6dfdf08db968f6d8bee32e591f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.07885",
    "kind": "arxiv",
    "version": 1
  }
}