Pith Number

pith:E5TYRJTF

pith:1999:E5TYRJTFOT4GIE7HPE3ZZFFME6

not attested not anchored not stored refs pending

Some Properties of Type I' String Theory

John H. Schwarz

arxiv:hep-th/9907061 v2 · 1999-07-08 · 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{E5TYRJTFOT4GIE7HPE3ZZFFME6}

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	2026-05-18T00:57:05.474785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

276788a66574f86413e779379c94ac278989dfe675abdbe9bb01314823c693c3

Aliases

arxiv: hep-th/9907061 · arxiv_version: hep-th/9907061v2 · doi: 10.48550/arxiv.hep-th/9907061 · pith_short_12: E5TYRJTFOT4G · pith_short_16: E5TYRJTFOT4GIE7H · pith_short_8: E5TYRJTF

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/E5TYRJTFOT4GIE7HPE3ZZFFME6 \
  | 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: 276788a66574f86413e779379c94ac278989dfe675abdbe9bb01314823c693c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb23ed61429a69011c37531ccea437f95743afd03a6308d5c5224fe87c74928f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1999-07-08T20:48:02Z",
    "title_canon_sha256": "c2e60e81fdca88c175b9664f9cee0f67ca9ed1672f51ffbcb8a3e29ae80c791e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9907061",
    "kind": "arxiv",
    "version": 2
  }
}