Pith Number

pith:MME2YSUF

pith:2009:MME2YSUFHRHHV4OH6EINLNYZXZ

not attested not anchored not stored refs pending

The Scientific Contributions of Joel Scherk

John H. Schwarz

arxiv:0904.0537 v1 · 2009-04-03 · hep-th · physics.hist-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MME2YSUFHRHHV4OH6EINLNYZXZ}

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	2026-07-04T15:40:37.948392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6309ac4a853c4e7af1c7f110d5b719be77d64957cb45b35bfa424162fb187822

Aliases

arxiv: 0904.0537 · arxiv_version: 0904.0537v1 · doi: 10.48550/arxiv.0904.0537 · pith_short_12: MME2YSUFHRHH · pith_short_16: MME2YSUFHRHHV4OH · pith_short_8: MME2YSUF

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/MME2YSUFHRHHV4OH6EINLNYZXZ \
  | 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: 6309ac4a853c4e7af1c7f110d5b719be77d64957cb45b35bfa424162fb187822

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0292a5c649360e0157ff1b7282ed6d9099fe8f953fe94d4611552af3f8f7f011",
    "cross_cats_sorted": [
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-04-03T17:28:12Z",
    "title_canon_sha256": "0aee3d163136a13c597f62d267ee83e2348b08eceb0e18c943e6c9473264b6b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0537",
    "kind": "arxiv",
    "version": 1
  }
}