Pith Number

pith:ZE5BNJ22

pith:1992:ZE5BNJ22WO5HXXGSPAJ5ASNUWT

not attested not anchored not stored refs pending

Perturbing the Ground Ring of 2-D String Theory

J.L.F. Barb\'on

arxiv:hep-th/9201064 v1 · 1992-01-29 · 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{ZE5BNJ22WO5HXXGSPAJ5ASNUWT}

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	2026-05-18T01:38:45.035968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c93a16a75ab3ba7bdcd27813d049b4b4f88361ee45e0a87a4c1157c8b78e862c

Aliases

arxiv: hep-th/9201064 · arxiv_version: hep-th/9201064v1 · doi: 10.48550/arxiv.hep-th/9201064 · pith_short_12: ZE5BNJ22WO5H · pith_short_16: ZE5BNJ22WO5HXXGS · pith_short_8: ZE5BNJ22

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/ZE5BNJ22WO5HXXGSPAJ5ASNUWT \
  | 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: c93a16a75ab3ba7bdcd27813d049b4b4f88361ee45e0a87a4c1157c8b78e862c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef86719348c2bcb0ae080d33e7315c131b036246e201c6a2ebd89a8cc7f382a9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1992-01-29T02:42:20Z",
    "title_canon_sha256": "25410988c165e77e147fa83d238a6fd9b57b37bcd6681e896d3a929e611d3fec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9201064",
    "kind": "arxiv",
    "version": 1
  }
}