Pith Number

pith:3ZQ5YT6S

pith:2014:3ZQ5YT6SG7D4DAKU7LLUHMSCHP

not attested not anchored not stored refs pending

Positive energy in quantum gravity

Lee Smolin

arxiv:1406.2611 v1 · 2014-06-10 · 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{3ZQ5YT6SG7D4DAKU7LLUHMSCHP}

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	2026-05-18T02:44:56.208057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de61dc4fd237c7c18154fad743b2423be7f9ce1e7dab72b261a01ec7f6f5cb29

Aliases

arxiv: 1406.2611 · arxiv_version: 1406.2611v1 · doi: 10.48550/arxiv.1406.2611 · pith_short_12: 3ZQ5YT6SG7D4 · pith_short_16: 3ZQ5YT6SG7D4DAKU · pith_short_8: 3ZQ5YT6S

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/3ZQ5YT6SG7D4DAKU7LLUHMSCHP \
  | 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: de61dc4fd237c7c18154fad743b2423be7f9ce1e7dab72b261a01ec7f6f5cb29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39921a8f66e073d3a601ec2eb0cedd1172d00c4254d89d7896b72e9d60a7a843",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-06-10T16:10:50Z",
    "title_canon_sha256": "fbd7d311d297bd4b317bf505429b5ea3715107e6ec6b016f094f4c4b5d36f909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2611",
    "kind": "arxiv",
    "version": 1
  }
}