Pith Number

pith:2HAX5OPG

pith:2019:2HAX5OPGQ3BOULGG7643TRSO4A

not attested not anchored not stored refs pending

Cosmic event horizons and the light-speed limit for relative radial motion

Markus P\"ossel

arxiv:1912.11677 v2 · 2019-12-25 · gr-qc · 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{2HAX5OPGQ3BOULGG7643TRSO4A}

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

Counterintuitive properties of relativistic relative motion for accelerated observers

Receipt and verification

First computed	2026-07-05T01:35:27.614203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1c17eb9e686c2ea2cc6ffb9b9c64ee03f2eb07171ed6849014ccdfeacdfe5d9

Aliases

arxiv: 1912.11677 · arxiv_version: 1912.11677v2 · doi: 10.48550/arxiv.1912.11677 · pith_short_12: 2HAX5OPGQ3BO · pith_short_16: 2HAX5OPGQ3BOULGG · pith_short_8: 2HAX5OPG

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/2HAX5OPGQ3BOULGG7643TRSO4A \
  | 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: d1c17eb9e686c2ea2cc6ffb9b9c64ee03f2eb07171ed6849014ccdfeacdfe5d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f41051f4240e4628325862694962acb029cd81ed7a583b0e67ce91bfd1fe60f9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-12-25T14:25:45Z",
    "title_canon_sha256": "61c49364b533cc3e6ed629c90337f77d26c413ac704dd65853c3729abf4da291"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.11677",
    "kind": "arxiv",
    "version": 2
  }
}