Pith Number

pith:S2GC3WTA

pith:2013:S2GC3WTA6HGUKDB7FHUI6JS4Q4

not attested not anchored not stored refs pending

Cool horizons lead to information loss

Borun D. Chowdhury

arxiv:1307.5915 v2 · 2013-07-23 · hep-th · 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{S2GC3WTA6HGUKDB7FHUI6JS4Q4}

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	2026-05-18T01:48:41.377470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

968c2dda60f1cd450c3f29e88f265c870153a95d9499ba583caaee975097d3e4

Aliases

arxiv: 1307.5915 · arxiv_version: 1307.5915v2 · doi: 10.48550/arxiv.1307.5915 · pith_short_12: S2GC3WTA6HGU · pith_short_16: S2GC3WTA6HGUKDB7 · pith_short_8: S2GC3WTA

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/S2GC3WTA6HGUKDB7FHUI6JS4Q4 \
  | 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: 968c2dda60f1cd450c3f29e88f265c870153a95d9499ba583caaee975097d3e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb5efc67e8787a6b1d990e90b5a8b52d10370d080507684e7ec8dd6666cf9d8b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-07-23T00:38:02Z",
    "title_canon_sha256": "9ff28f709777bc25146dd850fe3f997e519f0529bc3d0d9311fead186da6ac26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5915",
    "kind": "arxiv",
    "version": 2
  }
}