Pith Number

pith:J7W7CDP6

pith:2006:J7W7CDP6AD7MFMPBRTMTXRTTTP

not attested not anchored not stored refs pending

Two-dimensional approach to relativistic positioning systems

Bartolom\'e Coll, Joan Josep Ferrando, Juan Antonio Morales

arxiv:gr-qc/0602015 v2 · 2006-02-03 · 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{J7W7CDP6AD7MFMPBRTMTXRTTTP}

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	2026-05-18T01:08:53.964629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fedf10dfe00fec2b1e18cd93bc6739beaac7627b6c541795de9e6561f1803ca

Aliases

arxiv: gr-qc/0602015 · arxiv_version: gr-qc/0602015v2 · doi: 10.48550/arxiv.gr-qc/0602015 · pith_short_12: J7W7CDP6AD7M · pith_short_16: J7W7CDP6AD7MFMPB · pith_short_8: J7W7CDP6

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/J7W7CDP6AD7MFMPBRTMTXRTTTP \
  | 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: 4fedf10dfe00fec2b1e18cd93bc6739beaac7627b6c541795de9e6561f1803ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6292f476beefb7056d134583edbc7eca8ccd7aad7825259f594fa11f754aff8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2006-02-03T16:06:48Z",
    "title_canon_sha256": "5594869af23daa120beb88275fd283065ecd0162a1fca67cb276d199b9dba2dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0602015",
    "kind": "arxiv",
    "version": 2
  }
}