Pith Number

pith:RKNV743A

pith:2015:RKNV743AHGFDI7CTY5BT4LFNL2

not attested not anchored not stored refs pending

Measurements of Newton's gravitational constant and the length of day

Gerald Schubert, John D. Anderson, Michael R. Feldman, Virginia Trimble

arxiv:1504.06604 v2 · 2015-04-24 · gr-qc

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

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	2026-05-18T02:03:49.891229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a9b5ff360398a347c53c7433e2cad5e8bad37d1e15f49d00da6c60a8c17e72d

Aliases

arxiv: 1504.06604 · arxiv_version: 1504.06604v2 · doi: 10.48550/arxiv.1504.06604 · pith_short_12: RKNV743AHGFD · pith_short_16: RKNV743AHGFDI7CT · pith_short_8: RKNV743A

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/RKNV743AHGFDI7CTY5BT4LFNL2 \
  | 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: 8a9b5ff360398a347c53c7433e2cad5e8bad37d1e15f49d00da6c60a8c17e72d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce1c77667c263381a750004124ab56399d477d88f568605dd11e0f9b1c5cb1d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-04-24T19:23:07Z",
    "title_canon_sha256": "aa83c3f778a14faa5c220588752c94c13bfd3f8794abcb9448e98833eb049cce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06604",
    "kind": "arxiv",
    "version": 2
  }
}