Pith Number

pith:IK3VXJBB

pith:2009:IK3VXJBBZIKHPZLESDJEPVDPN2

not attested not anchored not stored refs pending

Emergent/Quantum Gravity: Macro/Micro Structures of Spacetime

B. L. Hu

arxiv:0903.0878 v1 · 2009-03-04 · 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{IK3VXJBBZIKHPZLESDJEPVDPN2}

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	2026-07-04T17:23:09.462063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b75ba421ca1477e56490d247d46f6e8b1840a50d062256b254e6f395e0c9f2

Aliases

arxiv: 0903.0878 · arxiv_version: 0903.0878v1 · doi: 10.48550/arxiv.0903.0878 · pith_short_12: IK3VXJBBZIKH · pith_short_16: IK3VXJBBZIKHPZLE · pith_short_8: IK3VXJBB

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/IK3VXJBBZIKHPZLESDJEPVDPN2 \
  | 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: 42b75ba421ca1477e56490d247d46f6e8b1840a50d062256b254e6f395e0c9f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc8d90d83c2f41c03402afe4b4e714937e8c75ea85f988558c278b95d2badcb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-03-04T22:54:58Z",
    "title_canon_sha256": "0a3c1accf1870679aa3a6a4f7fe65838362996290f93f10649bfcdb72a3846da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.0878",
    "kind": "arxiv",
    "version": 1
  }
}