Pith Number

pith:PRCVORW4

pith:2020:PRCVORW4W75UJNRJVGF6AZLUTD

not attested not anchored not stored refs pending

Proplyds in the Flame Nebula NGC 2024

Andrew D. Sellek, Andrew J. Winter, Cathie J. Clarke, Dean C. Hines, Giulia Ballabio, Jinyoung S. Kim, Karl R. Stapelfeldt, Thomas J. Haworth

arxiv:2012.09166 v1 · 2020-12-16 · astro-ph.SR · astro-ph.EP · 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{PRCVORW4W75UJNRJVGF6AZLUTD}

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	2026-07-05T02:04:49.404558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c455746dcb7fb44b629a98be0657498d3f20a545e6fb9a605b39ac5d06cd148

Aliases

arxiv: 2012.09166 · arxiv_version: 2012.09166v1 · doi: 10.48550/arxiv.2012.09166 · pith_short_12: PRCVORW4W75U · pith_short_16: PRCVORW4W75UJNRJ · pith_short_8: PRCVORW4

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/PRCVORW4W75UJNRJVGF6AZLUTD \
  | 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: 7c455746dcb7fb44b629a98be0657498d3f20a545e6fb9a605b39ac5d06cd148

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "277f95f6ce7820ae235c4e6c7623077442eedc79aae99d7581e0eba6c1e14b94",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-12-16T19:00:00Z",
    "title_canon_sha256": "675d04153e49ffbed15f4a974395ec6d736d9cb5efeeb050404420334576e281"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.09166",
    "kind": "arxiv",
    "version": 1
  }
}