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 0xecfb907b8746a6e6e771b052cdaa35aed9d09acb3d7649dad94c9aaee0c6fbe4. Chain 2 (Bitcoin): anchored in block 953958 (2026-06-16T14:52:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27145c13-4e31-4029-b66a-e30e5d0faca3.json and https://artists.proofprofile.net/proofs/artist/27145c13-4e31-4029-b66a-e30e5d0faca3.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 0xa81b420992260721778d0b0612cf48477a1f8ba1b7c40fa8d77c99b1195c0507. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZFZ31936778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319c3eccf3416165cf1ac70a678532e6b21d9e590ef3cbee3a2fdf31524fc55d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZFZ31936786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a7b92b19b4c4c9239c4e1410ad8697a2a521f6d3ec4da0531ac45d12022fc7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTAZ2344179.
No Necesito Ganja (con Batako y Comando G)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fc87937ab405c8aee314689323fb261f822b6ba009155bf8cf3e03837907cb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZK6J2033859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51b6830d9a7504243396358c64e9ca267bb61d8664ea0948884f6b701d35b9b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHNA1997996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f745efebdf441bc7002bbe61f2bd03d653c582a6c849639517fc0b5cbcbc87. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFYW1952305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4965d1cc79022361191df7d14113a60b6a7162b6b65b99e8f513b248f07b3d. 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/QZHN52084927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4410a381af51f8a38f23d34be1eab65e3a55a157e1b3fbc8794cf67cff0b0db. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHN52084928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd72b2dfdc3b2647049c0591e26c875f82b728b032e38e7e80cb6ecd1b41d5c9. 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/QZHN52084929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e4ced9b294400d88fa489007b582fae9a18d9b86eb0045aa7b6bba06776871. 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/QZHN52084930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dc42835b38f753bb1cf3c4ac972ff78acd30c10191b96c081a83406cfb476e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN52084932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260c82c84849ba88ea39316b1944a044163fbf1b3217b1dfa2e9b6e66032606a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN52084933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149353fd20412f1c64247d80557808793daa82fa8c19fe977bf5e7586bc7b5af. 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/QZHN52084936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0398aa47e05e4d0b81da54a389e8710194972d788e03e1fc3d0f5d6965a12c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USX9P2483388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d29a69adf218f6ef4623da0518f3aa8e07831565622ad1a7504ad81beb995d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USX9P2483390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc028f6aa3b9ec466b4efb8bfefef64cb0e6bbddc3baba14cf68ec41888030a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USX9P2483392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898c84189fe75d5a5cef541f5080a77a7acd132ef33b8bff7b1460fd9bd1a152. 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/USX9P2483394.