Pith Number

pith:PLMR5HV6

pith:2012:PLMR5HV6A6RCEORTMKO5R3IMYC

not attested not anchored not stored refs pending

Herschel CHESS discovery of the fossil cloud that gave birth to the Trapezium and Orion KL

Ana L\'opez-Sepulcre, Asunci\'on Fuente, Carsten Dominik, Cecilia Ceccarelli, Emmanuel Caux, Mihkel Kama, Tom\'as Alonso-Albi

arxiv:1211.5772 v1 · 2012-11-25 · 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{PLMR5HV6A6RCEORTMKO5R3IMYC}

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	2026-05-18T01:52:55.382551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ad91e9ebe07a2223a33629dd8ed0cc08e7c799b47eb6f3287e8e2e28e28765e

Aliases

arxiv: 1211.5772 · arxiv_version: 1211.5772v1 · doi: 10.48550/arxiv.1211.5772 · pith_short_12: PLMR5HV6A6RC · pith_short_16: PLMR5HV6A6RCEORT · pith_short_8: PLMR5HV6

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/PLMR5HV6A6RCEORTMKO5R3IMYC \
  | 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: 7ad91e9ebe07a2223a33629dd8ed0cc08e7c799b47eb6f3287e8e2e28e28765e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecf9865b35037e20e2e2e8ec143135a3a0f737f76f4dda273f168fefa1b0b993",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-11-25T16:10:54Z",
    "title_canon_sha256": "e2c736b84c08ce01161bdcaf493c8dedd1df2944d8a0bc2a42fa16f5148f45b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.5772",
    "kind": "arxiv",
    "version": 1
  }
}