Adolfo Leandro Carabelli (8 September 1893 - 25 January 1947) was an Argentine piano player, composer and bandleader (tango musical genre) during the Golden Age of tango. Biography He was born on 8 S
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1da26137fe76cec78feffacbc3435640c16a1d9f0725b68f7b0f76345518ce8. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cff5738a-cf21-47be-8aad-b7422f8ced74.json and https://artists.proofprofile.net/proofs/artist/cff5738a-cf21-47be-8aad-b7422f8ced74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Serie 78 RPM: Orquestas De Antaño - Adolfo Carabelli
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045184bd48eb9b88f5e3d53feffea88aad0b2ae42d87b95c41a871c4ac8d1c81. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA821410012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc98b16bef8fbee57823b9e4241438ad1e776ba0c847fec50416a380c5a88a9e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71684033.
Antología: La Colección Definitiva (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fa699d145d50d844ac7e269096dba8cf364020a43db887858abc7a0586b50c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA821000540.