Pith Number

pith:P6B3VJLC

pith:2005:P6B3VJLC7DDMN3N3BQQAHYPWJF

not attested not anchored not stored refs pending

Observational evidence of the formation of cyanopolyynes in CRL618 through the polimerization of HCN

J. Cernicharo, J.R. Goicoechea, J.R. Pardo

arxiv:astro-ph/0504235 v1 · 2005-04-11 · 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{P6B3VJLC7DDMN3N3BQQAHYPWJF}

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	2026-07-04T16:52:09.853800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f83baa562f8c6c6edbb0c2003e1f64943163271d2cd44d1b236443e3db5e85e

Aliases

arxiv: astro-ph/0504235 · arxiv_version: astro-ph/0504235v1 · doi: 10.48550/arxiv.astro-ph/0504235 · pith_short_12: P6B3VJLC7DDM · pith_short_16: P6B3VJLC7DDMN3N3 · pith_short_8: P6B3VJLC

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/P6B3VJLC7DDMN3N3BQQAHYPWJF \
  | 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: 7f83baa562f8c6c6edbb0c2003e1f64943163271d2cd44d1b236443e3db5e85e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfcb233c5c40d174a490a9305a1c7f179fe49ec437f6aa22b14317553d61cec3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-11T10:09:33Z",
    "title_canon_sha256": "5487eb58c819b124c1f140cc2c8f353ba7b7f9524f0e0ad3b0d8689765ac98f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504235",
    "kind": "arxiv",
    "version": 1
  }
}