Pith Number

pith:DN3NSTKL

pith:2013:DN3NSTKLNQHBBYLSUVFRVLE7XA

not attested not anchored not stored refs pending

The SL(2,R) totally constrained model: three quantization approaches

Javier Olmedo, Rodolfo Gambini

arxiv:1304.1474 v2 · 2013-04-04 · 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{DN3NSTKLNQHBBYLSUVFRVLE7XA}

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	2026-05-18T02:47:07.860478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b76d94d4b6c0e10e172a54b1aac9fb823d5a1aa0272878e2e2325977a281318

Aliases

arxiv: 1304.1474 · arxiv_version: 1304.1474v2 · doi: 10.48550/arxiv.1304.1474 · pith_short_12: DN3NSTKLNQHB · pith_short_16: DN3NSTKLNQHBBYLS · pith_short_8: DN3NSTKL

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/DN3NSTKLNQHBBYLSUVFRVLE7XA \
  | 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: 1b76d94d4b6c0e10e172a54b1aac9fb823d5a1aa0272878e2e2325977a281318

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f803cf486609dc989a1832cbc908badfb087032cf4d6a2588861ec626c74723",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-04-04T19:23:28Z",
    "title_canon_sha256": "a1480fd0999c20dcad9aed310a797019e02c6b6634ac723a98ee97626bf85bc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1474",
    "kind": "arxiv",
    "version": 2
  }
}