Pith Number

pith:Y6TDWDKR

pith:2006:Y6TDWDKRRWGYDXXPPVWKU4EXOJ

not attested not anchored not stored refs pending

The Einstein constraints: uniqueness and non-uniqueness in the conformal thin sandwich approach

Harald P. Pfeiffer, Niall \'O Murchadha, Thomas W. Baumgarte

arxiv:gr-qc/0610120 v1 · 2006-10-25 · 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{Y6TDWDKRRWGYDXXPPVWKU4EXOJ}

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	2026-05-18T01:08:53.896179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7a63b0d518d8d81deef7d6caa7097725c6eca4b34d21fce643d8128c6ccea1d

Aliases

arxiv: gr-qc/0610120 · arxiv_version: gr-qc/0610120v1 · doi: 10.48550/arxiv.gr-qc/0610120 · pith_short_12: Y6TDWDKRRWGY · pith_short_16: Y6TDWDKRRWGYDXXP · pith_short_8: Y6TDWDKR

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/Y6TDWDKRRWGYDXXPPVWKU4EXOJ \
  | 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: c7a63b0d518d8d81deef7d6caa7097725c6eca4b34d21fce643d8128c6ccea1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8aff441336d24421b4426c083fc854b7718c20f2773ca3ae238a46ca871b0557",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2006-10-25T16:35:32Z",
    "title_canon_sha256": "175e0195b884294395be23b19783abb7417ac91eb7b9ae080adc4eedc7a8c81b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0610120",
    "kind": "arxiv",
    "version": 1
  }
}