Pith Number

pith:XMOQH5A4

pith:1997:XMOQH5A4IKIBHD54VPUP3CCQNE

not attested not anchored not stored refs pending

Black Hole Electromagnetic Duality

S. Deser (Brandeis University)

arxiv:hep-th/9701157 v1 · 1997-01-28 · 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{XMOQH5A4IKIBHD54VPUP3CCQNE}

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	2026-05-18T04:33:36.931822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb1d03f41c4290138fbcabe8fd8850692e168751e6456254bcbf55926bf18ebf

Aliases

arxiv: hep-th/9701157 · arxiv_version: hep-th/9701157v1 · doi: 10.48550/arxiv.hep-th/9701157 · pith_short_12: XMOQH5A4IKIB · pith_short_16: XMOQH5A4IKIBHD54 · pith_short_8: XMOQH5A4

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/XMOQH5A4IKIBHD54VPUP3CCQNE \
  | 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: bb1d03f41c4290138fbcabe8fd8850692e168751e6456254bcbf55926bf18ebf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fce6f01959aad7866b721667a130bee8c98897cdb5d870b739ae0be2bcfca5b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1997-01-28T18:56:39Z",
    "title_canon_sha256": "90a8b310aae9afe8da22b3fa9a12e3060767302fad1699883bae6490ee75fba6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9701157",
    "kind": "arxiv",
    "version": 1
  }
}