Pith Number

pith:I5DLPZTU

pith:2015:I5DLPZTUE6AY44XYBPJFRMZT4G

not attested not anchored not stored refs pending

Polycyclic aromatic hydrocarbons and molecular hydrogen in oxygen-rich planetary nebulae: the case of NGC6720

C. Joblin, J. Cernicharo, N.L.J. Cox, O. Berne, P. Pilleri

arxiv:1511.08725 v1 · 2015-11-27 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I5DLPZTUE6AY44XYBPJFRMZT4G}

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	2026-05-18T01:23:53.910564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4746b7e67427818e72f80bd258b333e18b16028e15dc74777c8bbef7fe4a1ad0

Aliases

arxiv: 1511.08725 · arxiv_version: 1511.08725v1 · doi: 10.48550/arxiv.1511.08725 · pith_short_12: I5DLPZTUE6AY · pith_short_16: I5DLPZTUE6AY44XY · pith_short_8: I5DLPZTU

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/I5DLPZTUE6AY44XYBPJFRMZT4G \
  | 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: 4746b7e67427818e72f80bd258b333e18b16028e15dc74777c8bbef7fe4a1ad0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c91afd9820785835b1d713891cbdf6615e71ba6fc115170ad76d6733079b993",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-11-27T16:19:47Z",
    "title_canon_sha256": "f2ac3e0b511b7735cd372a24c1ea15e0deb586595c4182ff96a61104826cf130"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.08725",
    "kind": "arxiv",
    "version": 1
  }
}