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 0xb3cf97b0faa2cc8a9c4b468a1d7f8a9ccb8e653bc1792685161fe0888ca8d4b1. 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/b26782aa-034b-4ab4-9874-0fa7b23a1542.json and https://artists.proofprofile.net/proofs/artist/b26782aa-034b-4ab4-9874-0fa7b23a1542.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 0x65db9c63fee55103d987e0c5f55af0410d1db33f16bbdb0a32010e02cfbd7997. 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/ESA011490138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7517e72455294d8346c786be816f1237940f2ef1f74834ba2b6971d8f25625. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:46:15Z), 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/ESA011490141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692f0b7869f49db5082c57423a157e97027ded93dccfac7c9cc6399a7bb4779d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:35Z), 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/ESA011490133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a2e0e96d6183d5e882293e28aadab32dc66fc9698d864a4142dd0316ba5287. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ESA011490137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0c6de1baa5ff1513d45771c87e4f500dc5e65dcb7182f1869cf264421f3500. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/ESA011490139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1004a0163e9ea55d94dce72fc42aa913d21ce411c83517283327573f492bea. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ESA011490140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3ff7dc3d93aa5ce050ecf7bd8d818a532aab33a667115d4279c0ad04f674e3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ESA011690022.
No Te Quedes en Guadix a Dormir la Siesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5047d5ff6fdc79e4f35411c9f3e82b31dd30a8e42cbba2c29a6469e82cd5c86c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ESA011690027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eea755a777a70c59b581e56b21704135769d6e7397e3908dad723af47b2a02a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ESA011690029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f964c116eaf617ddf82e48fdd32eae1c0ea0d91dbb064758640655967dc4fbe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM6N22197861.
En casa que no hay gobierno, a pellizcos se va el pan tierno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0eadaf2f3baecd258659dfd4c345aa14fe2205cdfb3a836ce851a67f03733a3. 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/ESA011610470.