Pith Number

pith:GGQR6SRM

pith:2021:GGQR6SRM7D26RKK34FYEN2IVPV

not attested not anchored not stored refs pending

The Reflectance Spectra of CV-CK Carbonaceous chondrites from the Near Infrared to the Visible

Andrew S. Rivkin, C.E.Moyano-Cambero, I.P.Williams, J.Llorca, Josep M. Trigo-Rodriguez, Safoura Tanbakouei

arxiv:2107.12590 v2 · 2021-07-27 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GGQR6SRM7D26RKK34FYEN2IVPV}

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	2026-07-05T03:11:06.309548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31a11f4a2cf8f5e8a95be17046e9157d4efd2f64099c4a960c2db69929dfb107

Aliases

arxiv: 2107.12590 · arxiv_version: 2107.12590v2 · doi: 10.48550/arxiv.2107.12590 · pith_short_12: GGQR6SRM7D26 · pith_short_16: GGQR6SRM7D26RKK3 · pith_short_8: GGQR6SRM

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/GGQR6SRM7D26RKK34FYEN2IVPV \
  | 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: 31a11f4a2cf8f5e8a95be17046e9157d4efd2f64099c4a960c2db69929dfb107

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d79582bc100a14b46fc059fb95f5638c94d111cc43286d3f9c2ad1749d12966",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-07-27T04:21:21Z",
    "title_canon_sha256": "a493e0e8ce024f5291f41ab759887b81d944d7c256c59284523adf93190985e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.12590",
    "kind": "arxiv",
    "version": 2
  }
}