Pith Number

pith:ZHESZOHX

pith:2025:ZHESZOHXUCEBVPIH2B4IYV7BDX

not attested not anchored not stored refs pending

An Unfinished Collaboration with A. A. Starobinsky

Thibault Damour

arxiv:2509.00558 v1 · 2025-08-30 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZHESZOHXUCEBVPIH2B4IYV7BDX}

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	2026-07-05T12:02:18.446224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9c92cb8f7a0881abd07d0788c57e11dd9c669cedb2740a566867fa26266776d

Aliases

arxiv: 2509.00558 · arxiv_version: 2509.00558v1 · doi: 10.48550/arxiv.2509.00558 · pith_short_12: ZHESZOHXUCEB · pith_short_16: ZHESZOHXUCEBVPIH · pith_short_8: ZHESZOHX

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/ZHESZOHXUCEBVPIH2B4IYV7BDX \
  | 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: c9c92cb8f7a0881abd07d0788c57e11dd9c669cedb2740a566867fa26266776d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d210213911e61791d163461ec412d50764472dd8759fffb2fa10817e8b81d22",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-08-30T16:50:05Z",
    "title_canon_sha256": "8e1ca05a251466d765eb88a3e2cb19e85e5726112bb59afae74ebf347da26bbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.00558",
    "kind": "arxiv",
    "version": 1
  }
}