Pith Number
pith:ULJLKSL3
pith:2000:ULJLKSL3B3GUXAMVA5CBIYU352
not attested
not anchored
not stored
refs pending
The Cosmic Background Radiation circa nu2K
arxiv:astro-ph/0011381 v1 · 2000-11-21 · astro-ph
Add to your LaTeX paper
\usepackage{pith}
\pithnumber{ULJLKSL3B3GUXAMVA5CBIYU352}
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
· sign in to
claim
4
Citations
5
Replications
✓
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 | 2026-05-18T03:47:51.788509Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
a2d2b5497b0ecd4b8195074414629beeb859ba1d06fde41abfae7997b858b8fc
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/ULJLKSL3B3GUXAMVA5CBIYU352 \
| 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: a2d2b5497b0ecd4b8195074414629beeb859ba1d06fde41abfae7997b858b8fc
Canonical record JSON
{
"metadata": {
"abstract_canon_sha256": "56ca5c13181fb2b5c4964fc4cb29302a150950920e3aecc7743aad1221dcab3b",
"cross_cats_sorted": [],
"license": "",
"primary_cat": "astro-ph",
"submitted_at": "2000-11-21T04:48:28Z",
"title_canon_sha256": "8e6f7cc8e228e4d3116c7bb988c63e3101c039a64b3fce670b7f739c0fbc0ce1"
},
"schema_version": "1.0",
"source": {
"id": "astro-ph/0011381",
"kind": "arxiv",
"version": 1
}
}