Pith Number

pith:M5E57R7L

pith:2019:M5E57R7LX3KX3LPXJ5SI2EV7X4

not attested not anchored not stored refs pending

$\mathbf{O}(D,D)$ completion of the Friedmann equations

Guilherme Franzmann, Jeong-Hyuck Park, Kyoungho Cho, Shinji Mukohyama, Stephen Angus

arxiv:1905.03620 v2 · 2019-05-09 · hep-th · astro-ph.CO · 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{M5E57R7LX3KX3LPXJ5SI2EV7X4}

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

Traversable wormhole for string, but not for particle

Receipt and verification

First computed	2026-07-05T01:34:19.990590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6749dfc7ebbed57dadf74f648d12bfbf0cfabacf94a3db01d0bd5247355f6f3e

Aliases

arxiv: 1905.03620 · arxiv_version: 1905.03620v2 · doi: 10.48550/arxiv.1905.03620 · pith_short_12: M5E57R7LX3KX · pith_short_16: M5E57R7LX3KX3LPX · pith_short_8: M5E57R7L

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/M5E57R7LX3KX3LPXJ5SI2EV7X4 \
  | 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: 6749dfc7ebbed57dadf74f648d12bfbf0cfabacf94a3db01d0bd5247355f6f3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0879ce7b2bcd7970317df8d260d020d6a96a8b1df2ba40c938c1d1788cf2307",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-05-09T13:36:22Z",
    "title_canon_sha256": "921e4ec256f3d66724159df4f8488fcd168ea470e9a70239ba9012dc509535d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03620",
    "kind": "arxiv",
    "version": 2
  }
}