Pith Number

pith:XZ5FRRIO

pith:2013:XZ5FRRIOSYLR76FGKV22ATUKQT

not attested not anchored not stored refs pending

Spurious Velocities in Dynamically-Cold Systems Due to the Gravitational Redshifts of their Constituent Stars

Abraham Loeb (Harvard)

arxiv:1311.4551 v2 · 2013-11-18 · astro-ph.GA · astro-ph.SR · 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{XZ5FRRIOSYLR76FGKV22ATUKQT}

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	2026-05-18T03:01:35.198886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be7a58c50e96171ff8a65575a04e8a84f941ebad0cbaf8d12b6e8098226670ce

Aliases

arxiv: 1311.4551 · arxiv_version: 1311.4551v2 · doi: 10.48550/arxiv.1311.4551 · pith_short_12: XZ5FRRIOSYLR · pith_short_16: XZ5FRRIOSYLR76FG · pith_short_8: XZ5FRRIO

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/XZ5FRRIOSYLR76FGKV22ATUKQT \
  | 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: be7a58c50e96171ff8a65575a04e8a84f941ebad0cbaf8d12b6e8098226670ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12cebff8ddb5333f1684fd464d095f960c5832bc4a02dc6329ad2712129dccfb",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-11-18T21:01:56Z",
    "title_canon_sha256": "8ec9455c394b3dfbde8fa21d72817de1b6bacbc43cb03e95c0465eadf6a812bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4551",
    "kind": "arxiv",
    "version": 2
  }
}