Pith Number

pith:OBJDAK3E

pith:2009:OBJDAK3EN3KU5ETF5PACPCUY3A

not attested not anchored not stored refs pending

Exotic Hairy Black Holes

Alex Buchel, Chris Pagnutti

arxiv:0904.1716 v2 · 2009-04-10 · 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{OBJDAK3EN3KU5ETF5PACPCUY3A}

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	2026-05-18T04:30:58.262020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7052302b646ed54e9265ebc0278a98d82e28dd2edea9973ca30617c52596f64d

Aliases

arxiv: 0904.1716 · arxiv_version: 0904.1716v2 · doi: 10.48550/arxiv.0904.1716 · pith_short_12: OBJDAK3EN3KU · pith_short_16: OBJDAK3EN3KU5ETF · pith_short_8: OBJDAK3E

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/OBJDAK3EN3KU5ETF5PACPCUY3A \
  | 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: 7052302b646ed54e9265ebc0278a98d82e28dd2edea9973ca30617c52596f64d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4a5af21bcc34b1bba44298e7a16ecc49c156ec55f34fc71fb2ca2edc5aa74a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-04-10T17:05:57Z",
    "title_canon_sha256": "cd7bb30d660ef7e640200f3c78c27a170c7fee15804cd775f756e4d8b7ce1249"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1716",
    "kind": "arxiv",
    "version": 2
  }
}