Pith Number

pith:5GDIMQMW

pith:2007:5GDIMQMWUXT4DSDY2QASQF6V4J

not attested not anchored not stored refs pending

On the deduction of galaxy abundances with evolutionary neural networks

Angeles I. Diaz, Michael Taylor

arxiv:0709.2990 v1 · 2007-09-19 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5GDIMQMWUXT4DSDY2QASQF6V4J}

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	2026-05-18T03:56:08.875486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e986864196a5e7c1c878d4012817d5e26c7b395a8a6c460914c9c2615911cd69

Aliases

arxiv: 0709.2990 · arxiv_version: 0709.2990v1 · doi: 10.48550/arxiv.0709.2990 · pith_short_12: 5GDIMQMWUXT4 · pith_short_16: 5GDIMQMWUXT4DSDY · pith_short_8: 5GDIMQMW

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/5GDIMQMWUXT4DSDY2QASQF6V4J \
  | 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: e986864196a5e7c1c878d4012817d5e26c7b395a8a6c460914c9c2615911cd69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60791dc8369e7ab75d839102c1dcb0fa59e8294264b0a95b7dd14446646c2225",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-19T11:08:22Z",
    "title_canon_sha256": "7ce4f33cef624e8cda640f189e89198eb4877723b77de26283d9a0551ebcd7bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2990",
    "kind": "arxiv",
    "version": 1
  }
}