Pith Number

pith:DFK6GE5X

pith:2007:DFK6GE5XMWKR5MCYQOILRPJ5ON

not attested not anchored not stored refs pending

Do Evaporating Black Holes Form Photospheres?

B. J. Carr, Don N. Page, Jane H. MacGibbon

arxiv:0709.2380 v6 · 2007-09-17 · astro-ph · gr-qc · 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{DFK6GE5XMWKR5MCYQOILRPJ5ON}

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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

Constraints on Primordial Black Holes

Receipt and verification

First computed	2026-07-04T17:05:42.506670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1955e313b765951eb0588390b8bd3d7356d9ee84637156a965cd60ca57d93c07

Aliases

arxiv: 0709.2380 · arxiv_version: 0709.2380v6 · doi: 10.48550/arxiv.0709.2380 · pith_short_12: DFK6GE5XMWKR · pith_short_16: DFK6GE5XMWKR5MCY · pith_short_8: DFK6GE5X

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/DFK6GE5XMWKR5MCYQOILRPJ5ON \
  | 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: 1955e313b765951eb0588390b8bd3d7356d9ee84637156a965cd60ca57d93c07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d9d765d39b6d7419ada6aedd54d776dc00dc1e24196461abefb656a3ccf835a",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-17T19:01:54Z",
    "title_canon_sha256": "34054a3a3356897e5857c6431f5d5fe4464c3aa3ff960c02dfb8503f6e9cd8a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2380",
    "kind": "arxiv",
    "version": 6
  }
}