Pith Number

pith:BHPSQ2XT

pith:2021:BHPSQ2XTJBVA52XSDT2QNY5M5K

not attested not anchored not stored refs pending

Gravitational redshifting of galaxies in the SPIDERS cluster catalogue

A. Finoguenov, A. Merloni, A. Saro, C. A. Collins, C. T. Mpetha, D. Schneider, J. A. Peacock, J. Comparat, K. Furnell, N. Clerc, N. D. Padilla, R. Capasso, S. Damsted

arxiv:2102.11156 v2 · 2021-02-22 · 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{BHPSQ2XTJBVA52XSDT2QNY5M5K}

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	2026-07-05T02:19:00.772573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09df286af3486a0eeaf21cf506e3aceaa7c8f47e83e11573a7b4b592ecb9a300

Aliases

arxiv: 2102.11156 · arxiv_version: 2102.11156v2 · doi: 10.48550/arxiv.2102.11156 · pith_short_12: BHPSQ2XTJBVA · pith_short_16: BHPSQ2XTJBVA52XS · pith_short_8: BHPSQ2XT

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/BHPSQ2XTJBVA52XSDT2QNY5M5K \
  | 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: 09df286af3486a0eeaf21cf506e3aceaa7c8f47e83e11573a7b4b592ecb9a300

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3f99c686dd657309d8979055962f9c305eb76deb688ac8dcd2e28b99c8dcdea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-02-22T16:26:50Z",
    "title_canon_sha256": "a718f09863159d6877bb045ca1998e1247f67f4015e7c7994651b857ed2abefc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.11156",
    "kind": "arxiv",
    "version": 2
  }
}