Pith Number

pith:BFSNKZFN

pith:2012:BFSNKZFNXHDS43LFBVR4AOHC65

not attested not anchored not stored refs pending

21-cm Lensing and the Cold Spot in the Cosmic Microwave Background

Ely D. Kovetz, Marc Kamionkowski

arxiv:1211.4610 v2 · 2012-11-19 · astro-ph.CO

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

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	2026-05-18T03:27:22.860524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0964d564adb9c72e6d650d63c038e2f768758effeece7f790a068b2ee023b80b

Aliases

arxiv: 1211.4610 · arxiv_version: 1211.4610v2 · doi: 10.48550/arxiv.1211.4610 · pith_short_12: BFSNKZFNXHDS · pith_short_16: BFSNKZFNXHDS43LF · pith_short_8: BFSNKZFN

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/BFSNKZFNXHDS43LFBVR4AOHC65 \
  | 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: 0964d564adb9c72e6d650d63c038e2f768758effeece7f790a068b2ee023b80b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "656db1cab274cf2b7374a1ec84ecdb59f263d97bbd6d1b3f3ea53e19259b32aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-19T22:24:35Z",
    "title_canon_sha256": "63e0c82104bf7793084abf3e4ce183e1085f82e70e1cef61ff6de43ef4fc2964"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4610",
    "kind": "arxiv",
    "version": 2
  }
}