Pith Number

pith:PJMHN5RC

pith:1994:PJMHN5RCY4XV4AEVQSCXBBMEHP

not attested not anchored not stored refs pending

Fermions and Topology

Lee Smolin

arxiv:gr-qc/9404010 v1 · 1994-04-07 · 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{PJMHN5RCY4XV4AEVQSCXBBMEHP}

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.

Cited by

1 paper in Pith

Testing ER = EPR with Hydrogen

Receipt and verification

First computed	2026-07-04T14:26:00.465610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a5876f622c72f5e009584857085843bf6ac1811fb2adc30a325cce33318a801

Aliases

arxiv: gr-qc/9404010 · arxiv_version: gr-qc/9404010v1 · doi: 10.48550/arxiv.gr-qc/9404010 · pith_short_12: PJMHN5RCY4XV · pith_short_16: PJMHN5RCY4XV4AEV · pith_short_8: PJMHN5RC

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/PJMHN5RCY4XV4AEVQSCXBBMEHP \
  | 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: 7a5876f622c72f5e009584857085843bf6ac1811fb2adc30a325cce33318a801

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4036e996d74d309ecb5c7ff630812d6a31e966728a7d6bd009becbc1c8a5ba4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1994-04-07T22:23:40Z",
    "title_canon_sha256": "b4270ccd1edf6e53de8ecae5b539f8a03ff2add6a10932403e2d1f2bc07e7a72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9404010",
    "kind": "arxiv",
    "version": 1
  }
}