Pith Number

pith:KZ3DHOXP

pith:2018:KZ3DHOXPUOTBXHW6AQCRQLH66D

not attested not anchored not stored refs pending

Time in quantum theory, the Wheeler-DeWitt equation and the Born-Oppenheimer approximation

Alessandro Tronconi, Alexander Yu. Kamenshchik, Giovanni Venturi, Tereza Vardanyan

arxiv:1809.08083 v1 · 2018-09-21 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KZ3DHOXPUOTBXHW6AQCRQLH66D}

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	2026-05-17T23:47:36.081407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

567633baefa3a61b9ede0405182cfef0d631afaad072f3d9b129fd964f0fd61b

Aliases

arxiv: 1809.08083 · arxiv_version: 1809.08083v1 · doi: 10.48550/arxiv.1809.08083 · pith_short_12: KZ3DHOXPUOTB · pith_short_16: KZ3DHOXPUOTBXHW6 · pith_short_8: KZ3DHOXP

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/KZ3DHOXPUOTBXHW6AQCRQLH66D \
  | 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: 567633baefa3a61b9ede0405182cfef0d631afaad072f3d9b129fd964f0fd61b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1e11092a8ed517040b578bf1ddcdd73f3e175c2c33d0b4cf731591e9ef372eb",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-09-21T13:22:16Z",
    "title_canon_sha256": "1a3851b980195a760867e2720a1da686682de95bef1229dd4a553152f6a1a555"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08083",
    "kind": "arxiv",
    "version": 1
  }
}