Pith Number

pith:MQJB5IJJ

pith:2012:MQJB5IJJPJW6ROMCDSM4PKPWDQ

not attested not anchored not stored refs pending

Un-twisting the NHEK with spectral flows

Iosif Bena, Monica Guica, Wei Song

arxiv:1203.4227 v1 · 2012-03-19 · 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{MQJB5IJJPJW6ROMCDSM4PKPWDQ}

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	2026-05-18T01:58:06.013383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64121ea1297a6de8b9821c99c7a9f61c25b46b34c49ce9c2514783ed9f5ccf4b

Aliases

arxiv: 1203.4227 · arxiv_version: 1203.4227v1 · doi: 10.48550/arxiv.1203.4227 · pith_short_12: MQJB5IJJPJW6 · pith_short_16: MQJB5IJJPJW6ROMC · pith_short_8: MQJB5IJJ

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/MQJB5IJJPJW6ROMCDSM4PKPWDQ \
  | 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: 64121ea1297a6de8b9821c99c7a9f61c25b46b34c49ce9c2514783ed9f5ccf4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c709cf571352da8704b2d331ae68dbc7de4a0bda6813bb7740fd7a00e2e31e4c",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-03-19T20:00:00Z",
    "title_canon_sha256": "4c823e56811effdf251e148ec57d5253996625b91a992fb94e718dee5689c565"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4227",
    "kind": "arxiv",
    "version": 1
  }
}