Pith Number

pith:NB77WDZR

pith:1999:NB77WDZRE6VMOSB2Z6BRNJPERN

not attested not anchored not stored refs pending

Non-local symmetries of the closed N=2 string

Alexander D. Popov, Klaus Junemann, Olaf Lechtenfeld

arxiv:hep-th/9901164 v1 · 1999-01-29 · 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{NB77WDZRE6VMOSB2Z6BRNJPERN}

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	2026-07-04T16:14:38.711788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

687ffb0f3127aac7483acf8316a5e48b4047c87275a3497c9a72c9c8aec066ce

Aliases

arxiv: hep-th/9901164 · arxiv_version: hep-th/9901164v1 · doi: 10.48550/arxiv.hep-th/9901164 · pith_short_12: NB77WDZRE6VM · pith_short_16: NB77WDZRE6VMOSB2 · pith_short_8: NB77WDZR

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/NB77WDZRE6VMOSB2Z6BRNJPERN \
  | 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: 687ffb0f3127aac7483acf8316a5e48b4047c87275a3497c9a72c9c8aec066ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "896e8b52923beacfbccc68b1b9df04101f678c2df58f9c6c077754a11165d9a3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-01-29T18:22:51Z",
    "title_canon_sha256": "9c16f753eade99c53011cee8ead4c0f6210d37349f0283b31b3d8b21c66d1674"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9901164",
    "kind": "arxiv",
    "version": 1
  }
}