Pith Number

pith:V5FYWXUU

pith:2019:V5FYWXUU5ALOEHOW7FHPHBT2UM

not attested not anchored not stored refs pending

Analogy between equilibrium beach profiles and closed universes

Valerio Faraoni (Bishop's University)

arxiv:1909.02654 v1 · 2019-09-05 · physics.geo-ph · 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{V5FYWXUU5ALOEHOW7FHPHBT2UM}

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	2026-07-05T00:10:43.601627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af4b8b5e94e816e21dd6f94ef3867aa33e9ecc87e975bdcac8529b20fbd2ad58

Aliases

arxiv: 1909.02654 · arxiv_version: 1909.02654v1 · doi: 10.48550/arxiv.1909.02654 · pith_short_12: V5FYWXUU5ALO · pith_short_16: V5FYWXUU5ALOEHOW · pith_short_8: V5FYWXUU

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/V5FYWXUU5ALOEHOW7FHPHBT2UM \
  | 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: af4b8b5e94e816e21dd6f94ef3867aa33e9ecc87e975bdcac8529b20fbd2ad58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dc803c13e774df547b52d1b86c1e5bef3bfbf32aae3168a34c214a4e2fba535",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2019-09-05T22:29:12Z",
    "title_canon_sha256": "49585a8913f71bdb9a69c88aac1222435e8423a759679f0855291a03f1f88393"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02654",
    "kind": "arxiv",
    "version": 1
  }
}