Pith Number

pith:IXQQDSM5

pith:2009:IXQQDSM5PDKA4BQUSBI54DK32T

not attested not anchored not stored refs pending

Coupling between cold dark matter and dark energy from neutrino mass experiments

G. La Vacca, J. R. Kristiansen, L. P. L. Colombo, R. Mainini, S. A. Bonometto

arxiv:0902.2737 v3 · 2009-02-16 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IXQQDSM5PDKA4BQUSBI54DK32T}

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	2026-05-18T04:34:46.993933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45e101c99d78d40e06149051de0d5bd4f9d8457dd06108c1e95a572305fba994

Aliases

arxiv: 0902.2737 · arxiv_version: 0902.2737v3 · doi: 10.48550/arxiv.0902.2737 · pith_short_12: IXQQDSM5PDKA · pith_short_16: IXQQDSM5PDKA4BQU · pith_short_8: IXQQDSM5

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/IXQQDSM5PDKA4BQUSBI54DK32T \
  | 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: 45e101c99d78d40e06149051de0d5bd4f9d8457dd06108c1e95a572305fba994

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcf887796b6a01f05e2f83a81cf493bb50bce07bca8ce2982838d17034761b98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-02-16T16:50:49Z",
    "title_canon_sha256": "4a93cdec53320d025ce6d7427df089d81f759db2635639cccd4a36cc4f6d4e7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2737",
    "kind": "arxiv",
    "version": 3
  }
}