Pith Number

pith:HWRF6DKN

pith:2018:HWRF6DKNWD3G2FKTPYJHKJN2IM

not attested not anchored not stored refs pending

Mass Calibration of the CODEX Cluster Sample using SPIDERS Spectroscopy -- I. The Richness-Mass Relation

A. Biviano, A. Finoguenov, A. Kukkola, A. Saro, C. Collins, C. Kirkpatrick, G. Erfanianfar, J. J. Mohr, N. Clerc, R. Capasso, S. Damsted, S. Grandis

arxiv:1812.06094 v3 · 2018-12-14 · astro-ph.CO

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

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	2026-05-17T23:43:42.803147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3da25f0d4db0f66d15537e127525ba4301ce8664a6806a6ab029e6146ff3d7f6

Aliases

arxiv: 1812.06094 · arxiv_version: 1812.06094v3 · doi: 10.48550/arxiv.1812.06094 · pith_short_12: HWRF6DKNWD3G · pith_short_16: HWRF6DKNWD3G2FKT · pith_short_8: HWRF6DKN

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/HWRF6DKNWD3G2FKTPYJHKJN2IM \
  | 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: 3da25f0d4db0f66d15537e127525ba4301ce8664a6806a6ab029e6146ff3d7f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5beb07155abfbba02339aa08a0cd34f9bd93c1ad06a053bbc15d7e2fa8de7fc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-12-14T19:00:00Z",
    "title_canon_sha256": "f0a41f0ea2ef744f0bfd3a15ed2d6c50dad76dc712b55927e8251783e66c9182"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06094",
    "kind": "arxiv",
    "version": 3
  }
}