Pith Number

pith:JA5MTC66

pith:2012:JA5MTC66H6M6YEP45EQGAWACK5

not attested not anchored not stored refs pending

Is dark energy evolving?

Remya Nair, Sanjay Jhingan

arxiv:1212.6644 v2 · 2012-12-29 · 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{JA5MTC66H6M6YEP45EQGAWACK5}

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	2026-05-18T01:52:22.896798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

483ac98bde3f99ec11fce92060580257485ef08520eebd3c36a87206f49d28a5

Aliases

arxiv: 1212.6644 · arxiv_version: 1212.6644v2 · doi: 10.48550/arxiv.1212.6644 · pith_short_12: JA5MTC66H6M6 · pith_short_16: JA5MTC66H6M6YEP4 · pith_short_8: JA5MTC66

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/JA5MTC66H6M6YEP45EQGAWACK5 \
  | 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: 483ac98bde3f99ec11fce92060580257485ef08520eebd3c36a87206f49d28a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01eff932d2ace02034b0b32c81c8ab80b5a68eecfbb19c23569747ba0e78996d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-29T16:33:25Z",
    "title_canon_sha256": "1083e1c265c768a2c99738d26a7b9f6bc0dc6489b22944898c45a3123bddcbd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.6644",
    "kind": "arxiv",
    "version": 2
  }
}