Pith Number

pith:OTPE2MMQ

pith:2014:OTPE2MMQJ3IQ2H2HMIVTIRY7UR

not attested not anchored not stored refs pending

The Emerging Planetary Nebula CRL 618 and its Unsettled Central Star(s)

A. Raga, A. Riera, B. Balick, K. B. Kwitter, P. F. Vel\'azquez

arxiv:1409.2531 v1 · 2014-09-08 · 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{OTPE2MMQJ3IQ2H2HMIVTIRY7UR}

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	2026-05-18T01:42:06.332064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74de4d31904ed10d1f47622b34471fa468ad56fca97ff06f41ceb601c17a0ba2

Aliases

arxiv: 1409.2531 · arxiv_version: 1409.2531v1 · doi: 10.48550/arxiv.1409.2531 · pith_short_12: OTPE2MMQJ3IQ · pith_short_16: OTPE2MMQJ3IQ2H2H · pith_short_8: OTPE2MMQ

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/OTPE2MMQJ3IQ2H2HMIVTIRY7UR \
  | 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: 74de4d31904ed10d1f47622b34471fa468ad56fca97ff06f41ceb601c17a0ba2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "755e706d5d9cc5c22433e0044ad6e4c418fbb87fa664596eeff24056971bf886",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-09-08T21:17:32Z",
    "title_canon_sha256": "411c012a10540db14e531e7e45b0b0bb47c4f4e22f6da4d914fb587ede740fcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2531",
    "kind": "arxiv",
    "version": 1
  }
}