Pith Number

pith:MQRSDD46

pith:2019:MQRSDD46Z33ZAHBEAZCJW4A5UL

not attested not anchored not stored refs pending

What if Newton's Gravitational Constant was negative?

Ismael Ayuso, Jos\'e P. Mimoso, Nelson J. Nunes

arxiv:1903.07604 v1 · 2019-03-18 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MQRSDD46Z33ZAHBEAZCJW4A5UL}

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	2026-05-17T23:51:00.900221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6423218f9ecef7901c2406449b701da2e190ed4be745c505c43d194d20388c4c

Aliases

arxiv: 1903.07604 · arxiv_version: 1903.07604v1 · doi: 10.48550/arxiv.1903.07604 · pith_short_12: MQRSDD46Z33Z · pith_short_16: MQRSDD46Z33ZAHBE · pith_short_8: MQRSDD46

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/MQRSDD46Z33ZAHBEAZCJW4A5UL \
  | 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: 6423218f9ecef7901c2406449b701da2e190ed4be745c505c43d194d20388c4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13015ae210e9f1f97f4ceee43e1afb6b0b9342889edda7c254d2db7558c4eed9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-03-18T17:54:03Z",
    "title_canon_sha256": "13ce09fbc454539d1d7eb1748b5f3963bbc1a80395501a71dea8182fe47de63a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.07604",
    "kind": "arxiv",
    "version": 1
  }
}