Pith Number

pith:7T6OXB6J

pith:2017:7T6OXB6JM7INUUCRRYS6MQERTB

not attested not anchored not stored refs pending

Hubble law: measure and interpretation

Georges Paturel, Pekka Teerikorpi, Yurij Baryshev

arxiv:1801.00128 v1 · 2017-12-30 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7T6OXB6JM7INUUCRRYS6MQERTB}

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	2026-05-18T00:26:23.111945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcfceb87c967d0da50518e25e64091987b025cc7da5c406304f8f9f5c6c0d22b

Aliases

arxiv: 1801.00128 · arxiv_version: 1801.00128v1 · doi: 10.48550/arxiv.1801.00128 · pith_short_12: 7T6OXB6JM7IN · pith_short_16: 7T6OXB6JM7INUUCR · pith_short_8: 7T6OXB6J

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/7T6OXB6JM7INUUCRRYS6MQERTB \
  | 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: fcfceb87c967d0da50518e25e64091987b025cc7da5c406304f8f9f5c6c0d22b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a662cc41229bd88a5f4ebe7cf09f94e89d4a869deacef3bc0bbcf1bf9bc2797",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-12-30T12:42:21Z",
    "title_canon_sha256": "d5e6e8d73297119f2ea1b33acfb2689b0460e5b3fc2d92c1d4952fb2967b79d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00128",
    "kind": "arxiv",
    "version": 1
  }
}