Pith Number

pith:MSQ5J7HI

pith:2019:MSQ5J7HITBITKRA2YCJNOKPA35

not attested not anchored not stored refs pending

Redshifts versus paradigm shifts; against renaming Hubble's Law

Cormac O'Raifeartaigh, Michael O'Keeffe

arxiv:1909.07731 v2 · 2019-09-17 · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MSQ5J7HITBITKRA2YCJNOKPA35}

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.

Cited by

1 paper in Pith

Learning to Assemble the Soma Cube with Legal-Action Masked DQN and Safe ZYZ Regrasp on a Doosan M0609

Receipt and verification

First computed	2026-07-05T01:46:43.136722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64a1d4fce8985135441ac092d729e0df64e2dc282b7fa069850a3605a05816dc

Aliases

arxiv: 1909.07731 · arxiv_version: 1909.07731v2 · doi: 10.48550/arxiv.1909.07731 · pith_short_12: MSQ5J7HITBIT · pith_short_16: MSQ5J7HITBITKRA2 · pith_short_8: MSQ5J7HI

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/MSQ5J7HITBITKRA2YCJNOKPA35 \
  | 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: 64a1d4fce8985135441ac092d729e0df64e2dc282b7fa069850a3605a05816dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fa8a5afdefb1a8d01d2459a5772d895a4f633eef82f8263bdc0e480a745edb7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2019-09-17T11:44:15Z",
    "title_canon_sha256": "2a402f5cb1779ad7e90692786369cf6f6424005145ed9feff6672fc913b22ef2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.07731",
    "kind": "arxiv",
    "version": 2
  }
}