ISRC CALC41100339
Verified recording
CALC41100339 is “Tres Sonetos: Escoge antes el morir que exponerse a los ultrajes de la vejez (Soneto 148)” by Michael Oesterle,
registered on the CopyrightChains blockchain with CopyrightID
0x5c4de1ac39dde956449345fed07f6cc313d00da5a7f904f3d139951a189d4a57 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41100339.
Recording identifiers
- ISRC
- CALC41100339
- Title
- Tres Sonetos: Escoge antes el morir que exponerse a los ultrajes de la vejez (Soneto 148)
- Artist
- Michael Oesterle
- CopyrightID (CopyrightChains transaction hash)
0x5c4de1ac39dde956449345fed07f6cc313d00da5a7f904f3d139951a189d4a57
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:3d1d40ecc6ade8ba8ca491fe0b90ac3b0c430976bbdb3a007e9a6875dcf36a34- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC41100339
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Tres Sonetos: Escoge antes el morir que exponerse a los ultrajes de la vejez (Soneto 148) · Machine-readable JSON-LD