Pith Number

pith:Q25LDCYH

pith:2007:Q25LDCYHCBTQLPFNPWR2XZFRTT

not attested not anchored not stored refs pending

The BSSN formulation is a partially constrained evolution system

Adrian P. Gentle

arxiv:0707.0339 v2 · 2007-07-03 · 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{Q25LDCYHCBTQLPFNPWR2XZFRTT}

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	2026-05-18T02:16:29.675966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86bab18b07106705bcad7da3abe4b19cdf484f003de62be9406f1a84990b69cd

Aliases

arxiv: 0707.0339 · arxiv_version: 0707.0339v2 · doi: 10.48550/arxiv.0707.0339 · pith_short_12: Q25LDCYHCBTQ · pith_short_16: Q25LDCYHCBTQLPFN · pith_short_8: Q25LDCYH

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/Q25LDCYHCBTQLPFNPWR2XZFRTT \
  | 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: 86bab18b07106705bcad7da3abe4b19cdf484f003de62be9406f1a84990b69cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53ac85f90a031b3f123336f42b4d50505b8fe6888f0da14021a2d7efc70b0fe2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-07-03T05:06:21Z",
    "title_canon_sha256": "0df851abe2229f92ec8728885230c4c7f16cf1bf2a14fdac717e931b8adcc723"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.0339",
    "kind": "arxiv",
    "version": 2
  }
}