Pith Number

pith:M2CA5LP7

pith:2009:M2CA5LP7MO3SUQXTWEPFP6ZCW3

not attested not anchored not stored refs pending

A Feature Movie of SiO Emission 20-100 AU from the Massive Young Stellar Object Orion Source I

C. Goddi (CfA), C. J. Chandler (NRAO), E. M. L. Humphreys (CfA), L. D. Matthews (CfA/MIT Haystack), L. J. Greenhill (CfA), M. Kunz (NRAO/Illinois)

arxiv:0911.2473 v1 · 2009-11-12 · 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{M2CA5LP7MO3SUQXTWEPFP6ZCW3}

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	2026-05-18T02:34:11.030838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66840eadff63b72a42f3b11e57fb22b6f8ddf133fa6a00aeb050318907ae7db3

Aliases

arxiv: 0911.2473 · arxiv_version: 0911.2473v1 · doi: 10.48550/arxiv.0911.2473 · pith_short_12: M2CA5LP7MO3S · pith_short_16: M2CA5LP7MO3SUQXT · pith_short_8: M2CA5LP7

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/M2CA5LP7MO3SUQXTWEPFP6ZCW3 \
  | 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: 66840eadff63b72a42f3b11e57fb22b6f8ddf133fa6a00aeb050318907ae7db3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef0848c71e4881e2984b3b66d9541d545b13ae55e119d20eca54099f19a45926",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-12T21:02:56Z",
    "title_canon_sha256": "c2fb9dfc6d9111637a516f6c3cb7940d59ab667ba0c23bcdf742d8cdfcdc9128"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2473",
    "kind": "arxiv",
    "version": 1
  }
}