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 0x47a5c189004f699f35eeea16862987608bb725ad7ca3390e5b57b6f9e410468b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/417984fb-4951-4626-9dea-3ceb27162d7a.json and https://artists.proofprofile.net/proofs/artist/417984fb-4951-4626-9dea-3ceb27162d7a.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 0x4827b99c5717d6f52209e8004101cd710005173181a45e753c2fcf29a7f07d81. 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/ES51G2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8315509a947429c6031ad3d95e3481f6c46ca10ab6ea35b6f7ca640910e87f32. 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/ESA011934909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe841809e3c0a71e1cf15e168e06403a8e29ff8992b2a94aa96928e1504a48d75. 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/ES11D2300844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76486dbd63e4983ada4dde015165e58eb476c16b6232d11ea6e08b5297c9cf09. 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/ES11D2300845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f3231ac74f57d51f7b9f99b23c8cc39ceea2b2d37bd268879f1215ff5729ac. 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/ES11D2300826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c8fd94c0820d8f0a05c15767085c5776e1ff159519807eac93507afadae59e. 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/ES11D2300825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717f57d78c2a2c68350f156ad50c2e6d9eaa0ed7686318aaaef6db59843c9b42. 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/ES11D2300847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe20dd303033af16cf09b8dae16ee3a029fa17570652015c4c7e207884476fb4. 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/ES11D2300848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbcf92cefa9b41ec116fb46e492f30fb29d3152503c0fe90d764fdcdb689c67. 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/ES11D2300849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba563a61fb5d9dcf5f2f8bd565489c3788121077424f1342c9e6d9c0a91a9e78. 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/ES11D2300850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d8c9e2cfebedfc72720e84c32e263db29900eba2fa9727c614731d23e054d9. 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/ES11D2200801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf7eacc6cf9356755c4affafe894c2ded8519262ecf8b776911373a8f5543cd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES11D2300880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4827b99c5717d6f52209e8004101cd710005173181a45e753c2fcf29a7f07d81. 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/ES51G2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb81d98dd878d8371e7a2b894befccbcce8b3eef694ec619e25e2db524ce87a. 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/ES82F2500006.
No et deixis (no et rendeixis) [El Disc de la Marató 2021]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf046c6c057cb39d4d0f48a0bf3349c67dfd9fa85642bde423495271efb86189e. 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/ES71G2422800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229d1cfbdba9197dd4901d2c543e0315c59c74105cefea66504713827dae466c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLE710841972.
Under My Feet (Frank Caro & Alemany Remix)
Clipper's Sounds DJ Essentials, Vol. 8 (Mixed by Ikki)