Pith Number

pith:OBFNG7UM

pith:2004:OBFNG7UM6LRJMG5BYBQCNVE3U3

not attested not anchored not stored refs pending

Knot points of double--covariant system of elliptic equations and preferred frames in general relativity

V. Pelykh

arxiv:gr-qc/0408061 v1 · 2004-08-18 · 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{OBFNG7UM6LRJMG5BYBQCNVE3U3}

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	2026-07-04T15:20:17.542205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

704ad37e8cf2e2961ba1c06026d49ba6e21ac4b62fe8341fe4c3fa91195602b2

Aliases

arxiv: gr-qc/0408061 · arxiv_version: gr-qc/0408061v1 · doi: 10.48550/arxiv.gr-qc/0408061 · pith_short_12: OBFNG7UM6LRJ · pith_short_16: OBFNG7UM6LRJMG5B · pith_short_8: OBFNG7UM

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/OBFNG7UM6LRJMG5BYBQCNVE3U3 \
  | 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: 704ad37e8cf2e2961ba1c06026d49ba6e21ac4b62fe8341fe4c3fa91195602b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f614e49e21e228138d7863df954bce8b9987eaeb42687ee571cc3e1d1e688f1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-08-18T13:40:21Z",
    "title_canon_sha256": "1d4136247e91a56d8f12ba1146ef2eed33dff7415ecda768a20b92378eb8ac13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0408061",
    "kind": "arxiv",
    "version": 1
  }
}