Pith Number

pith:NPTMFFUQ

pith:2008:NPTMFFUQOYH2LCAHIJXDOWXRLB

not attested not anchored not stored refs pending

Dark energy and neutrino mass constraints from weak lensing, supernova, and relative galaxy ages

Tian Lan, Tong-Jie Zhang, Xue-Lei Chen, Yan Gong

arxiv:0810.3572 v1 · 2008-10-20 · 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{NPTMFFUQOYH2LCAHIJXDOWXRLB}

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	2026-07-04T15:15:17.651377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6be6c29690760fa58807426e375af1586c4c7f14f91da4fca348f5072d3dbe32

Aliases

arxiv: 0810.3572 · arxiv_version: 0810.3572v1 · doi: 10.48550/arxiv.0810.3572 · pith_short_12: NPTMFFUQOYH2 · pith_short_16: NPTMFFUQOYH2LCAH · pith_short_8: NPTMFFUQ

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/NPTMFFUQOYH2LCAHIJXDOWXRLB \
  | 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: 6be6c29690760fa58807426e375af1586c4c7f14f91da4fca348f5072d3dbe32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa6bdd6bd7896228b2e0141b68b40186b085fdb299c2a4c947cac5389fc79961",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-20T14:49:30Z",
    "title_canon_sha256": "1ba43121217d8f7136395ff9a7d0c743124f6d28f7b48f75ba304a11a0a75b60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.3572",
    "kind": "arxiv",
    "version": 1
  }
}