Pith Number

pith:5ETR2BCG

pith:2009:5ETR2BCG3VMOPSYLWHEL33TKPC

not attested not anchored not stored refs pending

Mid-Infrared Variability of protostars in IC 1396A

B. A. Whitney, D. Barrado y Navascues, D. R. Ardila, I. Song, J. R. Stauffer, L. Hartmann, L. Rebull, M. Morales-Calderon, N. Calvet, T. Y. Brooke

arxiv:0907.3360 v1 · 2009-07-20 · 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{5ETR2BCG3VMOPSYLWHEL33TKPC}

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	2026-05-18T02:12:55.650675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9271d0446dd58e7cb0bb1c8bdee6a7888c7fce88e6928c82280033473765373

Aliases

arxiv: 0907.3360 · arxiv_version: 0907.3360v1 · doi: 10.48550/arxiv.0907.3360 · pith_short_12: 5ETR2BCG3VMO · pith_short_16: 5ETR2BCG3VMOPSYL · pith_short_8: 5ETR2BCG

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/5ETR2BCG3VMOPSYLWHEL33TKPC \
  | 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: e9271d0446dd58e7cb0bb1c8bdee6a7888c7fce88e6928c82280033473765373

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea417ed74abe3ceee63ae531585737336bd631be4977fbf8ff19b7544c71492e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-20T09:48:00Z",
    "title_canon_sha256": "1cd99a6abe425e5b8cc58f6369b45e2883eace58d9210dd0106b8f307f32425c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3360",
    "kind": "arxiv",
    "version": 1
  }
}