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 0x0f2ec12a636ef259cbce635fa504388e65f221a36f7a16e6f43e46e293531670. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ddbc70c-055b-4d2e-9765-b5612f651f15.json and https://artists.proofprofile.net/proofs/artist/0ddbc70c-055b-4d2e-9765-b5612f651f15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xce2c7f79d4e33cc79cd7111f880d4ebeb1accd76f9542eadc1a490e9bb79e767. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHN42431352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b5f5b1c4ce0c39e6832384a7f8a0d8328701a17bc771337c1d29ff3799e83c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES72462965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc883cc7b71e03f4c1a5d64ee1f2b82416218ab494d06426396ac1036a2f949e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZDA82435272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71205a34ca8e490773a7026e3aab3d969dbdac4698a6c080f657934816f03174. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTB42348072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e829c7d782fec9736727160654bae092a848c2727e820f4e41e11d627869929. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTB22333245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c07b2e5343f56d8f0e0078b9fd4c8d3e5cf30bc2d76b90be8739bee67788e0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPLS2380071.
La Chimbita de Medellin (Medallo en RD Remix)
La Chimbita de Medellin - Medallo en RD Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f762a642abff805c2293b326a918d3847e537f4f2ea11b7c0c27fc7c439f9a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHN82394167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed050491961f15ac4c09c0b582e32be7bb6450c9b052bc2fa38b7fc74d803d12. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZRP42204603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbe1b270a8ea17eb2c555c34c01ee2a70d79a985121fc11078842606bfbf3cf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHNC2260245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb311986c10eb415fb34fa7682bd5b56fe09d5f182ce50c2c10f447f7623f4d50. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX53U2060221.
Cuando Tu Quieras (feat. Riva El Maestro)