Pith Number

pith:2FIMAH3L

pith:2017:2FIMAH3LFKI44ZTLFHY2TLIAS7

not attested not anchored not stored refs pending

Definition of the relativistic geoid in terms of isochronometric surfaces

Claus L\"ammerzahl, Dennis Philipp, Dirk Puetzfeld, Eva Hackmann, Volker Perlick

arxiv:1702.08412 v2 · 2017-02-27 · 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{2FIMAH3LFKI44ZTLFHY2TLIAS7}

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	2026-05-18T00:42:58.239912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d150c01f6b2a91ce666b29f1a9ad0097d5a0b7307737e2e1d993c3d71789ef88

Aliases

arxiv: 1702.08412 · arxiv_version: 1702.08412v2 · doi: 10.48550/arxiv.1702.08412 · pith_short_12: 2FIMAH3LFKI4 · pith_short_16: 2FIMAH3LFKI44ZTL · pith_short_8: 2FIMAH3L

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/2FIMAH3LFKI44ZTLFHY2TLIAS7 \
  | 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: d150c01f6b2a91ce666b29f1a9ad0097d5a0b7307737e2e1d993c3d71789ef88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f80efd45e23628c8a813da38d2b8d54d727fbb7c141122c06747d0a1488fef6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-02-27T18:14:04Z",
    "title_canon_sha256": "a2f821952a66fd705f3a31a1b96761d37d97a92d8aeeba697707dcfd00bd9d81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08412",
    "kind": "arxiv",
    "version": 2
  }
}