Pith Number

pith:5SQNXYBK

pith:2017:5SQNXYBKAWQHBTO5XIRTLNQXRM

not attested not anchored not stored refs pending

Entropy for the Interior of a Schwarzschild Black Hole Assuming the Mass is Increasing With Time

Ritabrata Biswas, Sandip Dutta

arxiv:1711.03837 v2 · 2017-11-07 · physics.gen-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5SQNXYBKAWQHBTO5XIRTLNQXRM}

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	2026-05-17T23:52:34.189992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eca0dbe02a05a070cdddba2335b6178b164cdd6f31c82301013cd625faf33c87

Aliases

arxiv: 1711.03837 · arxiv_version: 1711.03837v2 · doi: 10.48550/arxiv.1711.03837 · pith_short_12: 5SQNXYBKAWQH · pith_short_16: 5SQNXYBKAWQHBTO5 · pith_short_8: 5SQNXYBK

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/5SQNXYBKAWQHBTO5XIRTLNQXRM \
  | 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: eca0dbe02a05a070cdddba2335b6178b164cdd6f31c82301013cd625faf33c87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4976a64e3b8914ec82718113c166f03a26987ae3b79201c5d001ae74aee0008",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2017-11-07T06:26:10Z",
    "title_canon_sha256": "48674e545121c18132facbb9048647f33fdc5a1516c9018a1c69d7144d51afcd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.03837",
    "kind": "arxiv",
    "version": 2
  }
}