Pith Number

pith:PSP2FVHD

pith:2010:PSP2FVHDMXUQKDL2U3CTNPKRDG

not attested not anchored not stored refs pending

Einstein constraints on a characteristic cone

Jos\'e M. Mart\'in-Garc\'ia, Piotr T. Chru\'sciel, Yvonne Choquet-Bruhat

arxiv:1002.1471 v1 · 2010-02-07 · 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{PSP2FVHDMXUQKDL2U3CTNPKRDG}

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	2026-05-18T00:37:23.075262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c9fa2d4e365e9050d7aa6c536bd5119ba5641c338230b3157fbcad09cfba6af

Aliases

arxiv: 1002.1471 · arxiv_version: 1002.1471v1 · doi: 10.48550/arxiv.1002.1471 · pith_short_12: PSP2FVHDMXUQ · pith_short_16: PSP2FVHDMXUQKDL2 · pith_short_8: PSP2FVHD

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/PSP2FVHDMXUQKDL2U3CTNPKRDG \
  | 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: 7c9fa2d4e365e9050d7aa6c536bd5119ba5641c338230b3157fbcad09cfba6af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f6b80e05384117376c949a2b7fc1d74268d5b8fffdcfdf500c1a288a3f25642",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-02-07T18:06:50Z",
    "title_canon_sha256": "117d7e04007281081721e0b6764e819bb86b3e1ad84c08800df1d73fedf027ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1471",
    "kind": "arxiv",
    "version": 1
  }
}