Pith Number

pith:BLO4NKPT

pith:2009:BLO4NKPTJ5WC6KLRA7UWN67IXC

not attested not anchored not stored refs pending

Phenomenological Quantum Gravity

Lee Smolin, Sabine Hossenfelder

arxiv:0911.2761 v1 · 2009-11-14 · physics.pop-ph · gr-qc · physics.gen-ph · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BLO4NKPTJ5WC6KLRA7UWN67IXC}

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	2026-05-18T02:34:05.422263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0addc6a9f34f6c2f297107e966fbe8b8a3bb10b6b3ab20970003641f0b4dfea9

Aliases

arxiv: 0911.2761 · arxiv_version: 0911.2761v1 · doi: 10.48550/arxiv.0911.2761 · pith_short_12: BLO4NKPTJ5WC · pith_short_16: BLO4NKPTJ5WC6KLR · pith_short_8: BLO4NKPT

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/BLO4NKPTJ5WC6KLRA7UWN67IXC \
  | 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: 0addc6a9f34f6c2f297107e966fbe8b8a3bb10b6b3ab20970003641f0b4dfea9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79ccf1035a1f7ed2df85cc3225bf7fa342d237a9520acf207c8fcb87ff3aa676",
    "cross_cats_sorted": [
      "gr-qc",
      "physics.gen-ph",
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2009-11-14T10:28:17Z",
    "title_canon_sha256": "e250b66c3c8bb423dc94bde1a38a65c236712eab218549883ac5dd973c582348"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2761",
    "kind": "arxiv",
    "version": 1
  }
}