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 0x5c6e340dece8e3d30d29c1b5ddd49f3767b3d3dc91449c815e704bbe842b9738. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47b2bdda-9137-47bc-a825-f43da5cca6bc.json and https://artists.proofprofile.net/proofs/artist/47b2bdda-9137-47bc-a825-f43da5cca6bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cuatro Bodas Y Un Funeral - Love Is All Around
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 0xe4c58e7e893d2b160f0bba7b6d7ffa88888cfbc03782830c20d7ffeb6cfe10ec. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/ES5530907379.
El Puente Sobre El Rio Kwai - River Kwai March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7dfc1e0b19354bf205d33974ef7a9ca8ca7091cf672a7ef5bd487e3d1351d7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES5530912237.
Memorias De Africa - Concierto De Clarinete Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6e49c6009dc1fd01f4cff8af9f80bbe1f7014acd01cccfb69e15208704831c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES5530907359.
Una Proposicion Indecente - Tema Central
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbde1263b2a1b0fb7d4e9d6262a890fa587617d5611c9dd4c9d2bb3ecee43cd. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES5530911389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c451a29c09917a8db2bc87ec399e483eea790116723da01083fb6a3e8c0b47. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES5530911983.
Superdetective En Hollywood - Tema Central
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abf4300f08ddff6c6883883973c55e7b9f68011756d789f8374684791dc4d46. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES5530911363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa264eedbf4fda28c149208c195bec89f3fc20f94a892890b31aa72644373f4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:47:03Z), 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/ES5531101043.
The Magnificent Seven (De "Los 7 Magníficos")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f71a491b2deb4fdbd0d35daf59ea93af1f68f3261ae1fad7b0672ebc76d3e6. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/CAM460408817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a65605ef85b0a897055e5ec338028ab48cda02a925620c61cebd08a6ec91d72. 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/QMVRR1101467.