Pith Number

pith:M6PKYTL5

pith:2012:M6PKYTL5E724M5FG6L4NGUXWWU

not attested not anchored not stored refs pending

Derivation of the blackfold effective theory

Joan Camps, Roberto Emparan

arxiv:1201.3506 v4 · 2012-01-17 · 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{M6PKYTL5E724M5FG6L4NGUXWWU}

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	2026-05-18T01:58:48.190376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

679eac4d7d27f5c674a6f2f8d352f6b537050d4c8caaa1470715e324991b503d

Aliases

arxiv: 1201.3506 · arxiv_version: 1201.3506v4 · doi: 10.48550/arxiv.1201.3506 · pith_short_12: M6PKYTL5E724 · pith_short_16: M6PKYTL5E724M5FG · pith_short_8: M6PKYTL5

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/M6PKYTL5E724M5FG6L4NGUXWWU \
  | 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: 679eac4d7d27f5c674a6f2f8d352f6b537050d4c8caaa1470715e324991b503d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4171b3cb7ea19f086e4737cd98a29678b6fb4e7d955def2688bbb4f8f5951593",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-01-17T13:15:55Z",
    "title_canon_sha256": "095ab93150241e8520cd434400562f38c2910f6a44d5bdd4fa4256bfa14397c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3506",
    "kind": "arxiv",
    "version": 4
  }
}