Pith Number

pith:CI7PTXZC

pith:2016:CI7PTXZC4OJY3HFX3H7IBC7C2B

not attested not anchored not stored refs pending

The chemical composition of Galactic ring nebulae around massive stars

A. Mesa-Delgado, C. Esteban, C. Morisset, J. Garcia-Rojas

arxiv:1605.07800 v1 · 2016-05-25 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CI7PTXZC4OJY3HFX3H7IBC7C2B}

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	2026-05-18T01:10:29.460268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

123ef9df22e3938d9cb7d9fe808be2d05328d03588f906ab9a638dfb5c74a54a

Aliases

arxiv: 1605.07800 · arxiv_version: 1605.07800v1 · doi: 10.48550/arxiv.1605.07800 · pith_short_12: CI7PTXZC4OJY · pith_short_16: CI7PTXZC4OJY3HFX · pith_short_8: CI7PTXZC

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/CI7PTXZC4OJY3HFX3H7IBC7C2B \
  | 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: 123ef9df22e3938d9cb7d9fe808be2d05328d03588f906ab9a638dfb5c74a54a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d04b7058f851a96db65aa19e6471cd1f4dfb550b94a63ce9928cecb6ddcb05c5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-05-25T09:52:30Z",
    "title_canon_sha256": "586dc8f3860324a0a2a5d51faad9fb09de292cdb98bac54f6a7204127c1bdf9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.07800",
    "kind": "arxiv",
    "version": 1
  }
}