Pith Number

pith:KQB3B7CX

pith:2007:KQB3B7CX6KIUCKNWWS3R6TJ7QB

not attested not anchored not stored refs pending

Dark Matter and Dark Energy

Marc Kamionkowski

arxiv:0706.2986 v1 · 2007-06-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KQB3B7CX6KIUCKNWWS3R6TJ7QB}

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	2026-07-04T15:02:20.798812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5403b0fc57f2914129b6b4b71f4d3f8066972acc04b5b7ceae447f6b916d5e63

Aliases

arxiv: 0706.2986 · arxiv_version: 0706.2986v1 · doi: 10.48550/arxiv.0706.2986 · pith_short_12: KQB3B7CX6KIU · pith_short_16: KQB3B7CX6KIUCKNW · pith_short_8: KQB3B7CX

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/KQB3B7CX6KIUCKNWWS3R6TJ7QB \
  | 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: 5403b0fc57f2914129b6b4b71f4d3f8066972acc04b5b7ceae447f6b916d5e63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8959a741d4d21389503cfd09af4a021821a36aa49ba2b017750df724d050d82",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-06-20T13:14:03Z",
    "title_canon_sha256": "026cd96a0a76b7375bc31197399db93398efa9ad7280a39fbfa21a18cf306596"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.2986",
    "kind": "arxiv",
    "version": 1
  }
}