Pith Number

pith:F4DSGIQW

pith:2021:F4DSGIQWW3UB2MFXWIO3GCLMFI

not attested not anchored not stored refs pending

String theory, Einstein, and the identity of physics: Theory assessment in absence of the empirical

Jeroen van Dongen

arxiv:2105.14342 v2 · 2021-05-29 · physics.hist-ph · gr-qc · hep-ex · hep-ph · 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{F4DSGIQWW3UB2MFXWIO3GCLMFI}

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	2026-07-05T03:18:27.984607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f07232216b6e81d30b7b21db3096c2a17a2658f056df984fdac919c9b4fbbe5

Aliases

arxiv: 2105.14342 · arxiv_version: 2105.14342v2 · doi: 10.48550/arxiv.2105.14342 · pith_short_12: F4DSGIQWW3UB · pith_short_16: F4DSGIQWW3UB2MFX · pith_short_8: F4DSGIQW

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/F4DSGIQWW3UB2MFXWIO3GCLMFI \
  | 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: 2f07232216b6e81d30b7b21db3096c2a17a2658f056df984fdac919c9b4fbbe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "970cfc4796bdc433ccf27b68279ef1dbeba07c03e4c8c8f4d9b56378c61d277e",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ex",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2021-05-29T17:20:00Z",
    "title_canon_sha256": "37b73bc8406102feb121f9e669e6ed429a68d8ecbdd543ea6ebed148814860eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.14342",
    "kind": "arxiv",
    "version": 2
  }
}