Pith Number

pith:6UHKIHCE

pith:1997:6UHKIHCE7B2KDGV34CKFSOLUOR

not attested not anchored not stored refs pending

(Half) a Lecture on D-branes

C. Bachas

arxiv:hep-th/9701019 v3 · 1997-01-07 · 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{6UHKIHCE7B2KDGV34CKFSOLUOR}

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	2026-05-18T00:54:21.056587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f50ea41c44f874a19abbe094593974745af5c906b20661dd080e92318f6868ca

Aliases

arxiv: hep-th/9701019 · arxiv_version: hep-th/9701019v3 · doi: 10.48550/arxiv.hep-th/9701019 · pith_short_12: 6UHKIHCE7B2K · pith_short_16: 6UHKIHCE7B2KDGV3 · pith_short_8: 6UHKIHCE

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/6UHKIHCE7B2KDGV34CKFSOLUOR \
  | 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: f50ea41c44f874a19abbe094593974745af5c906b20661dd080e92318f6868ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab3b2c870b03a35aa45c6130244f94842eb7074d24344f5a5645b0a2fd5f8403",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1997-01-07T17:49:06Z",
    "title_canon_sha256": "c4a149c12098b5f005cf385f87c92f4440184aa0e64da2d3e05295aa46a13778"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9701019",
    "kind": "arxiv",
    "version": 3
  }
}