Pith Number

pith:FZFQOOZH

pith:2020:FZFQOOZHKNF6FRZISQNGVND7EH

not attested not anchored not stored refs pending

Spectro-Imaging Forward Model of Red and Blue Galaxies

Adam Amara, Alexandre Refregier, Dominik Z\"urcher, J\"org Herbel, Luca Tortorelli, Martina Fagioli

arxiv:2002.04039 v2 · 2020-02-10 · astro-ph.GA · 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{FZFQOOZHKNF6FRZISQNGVND7EH}

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	2026-07-05T01:14:37.378251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e4b073b27534be2c728941a6ab47f21ec82a224ab6f57a2ca9cbe94d1c2cd0b

Aliases

arxiv: 2002.04039 · arxiv_version: 2002.04039v2 · doi: 10.48550/arxiv.2002.04039 · pith_short_12: FZFQOOZHKNF6 · pith_short_16: FZFQOOZHKNF6FRZI · pith_short_8: FZFQOOZH

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/FZFQOOZHKNF6FRZISQNGVND7EH \
  | 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: 2e4b073b27534be2c728941a6ab47f21ec82a224ab6f57a2ca9cbe94d1c2cd0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a56968dbb9da2568213c655108362004c3043b8ea27d97f33fdf3d817535805f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-02-10T19:00:04Z",
    "title_canon_sha256": "bad1ba2a5ab0dec6b6b5290095b686dd4465fdf085c1f788c1097960b9426f6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.04039",
    "kind": "arxiv",
    "version": 2
  }
}