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 0x66e84d9f1f3b053fcad8385dd4d6708be26d8c3f5b3cb9aa3bedf6a295bac5aa. 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/3b81a2c4-9521-4dd4-8384-8a879eb32ba5.json and https://artists.proofprofile.net/proofs/artist/3b81a2c4-9521-4dd4-8384-8a879eb32ba5.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 0x6d0e9ae80acaf93c0e93a00dcfdcaeb1a13bc365c6aa9a4ab63af5130c1cf49a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USCGH1687185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bf435b324a20253027072a22fc95dc586c33cff9d441eed1024b19cf4e1e3d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:50:24Z), 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/USCGJ1755932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f942cd6265f2cce2891e8eaa55ec15b2709dd48a65e2bde6a747f542872575c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGJ1755933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa644f8fbc24d4d400276d41ae27847a9ce3eae8099e1e7172e9f94743846106c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCGJ1755937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c11f256c6b4c04bc221fa39ec2279f0a6f71daa390637cf39c46e58893b5351. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USCGJ1755940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1206d156103845e127a3062c4ce5a36ab9bf4ddc8856f371de107f0a04cb727. 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/USCGJ1755942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98becf87017f406abb16a7c93b7bf77869f1f0852d5f1dfefb8a38ceb185970f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USCGJ1755946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6935b7bbac36ae65bbeefdf00bc1bab29906fe201f53fdf3e9f37a9024e75f6c. 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/USCGJ1755958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975edd5f3fb94e2f3cb81484c5e2537c85ef78e9933cc046b591cdf1200bf7e6. 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/USCGJ1755960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f54b10dd0ab524a3da96cbbae9bf2e6da89d5cb8aa5c75f3ef0f378ab14fb7. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USDY41766996.
Canciones para Dedicar (feat. Ferruz Im)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cd3e8bf69ae04c14de6bfc39f6d0acfa056bd8571917bb8b807fdde103ecb9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USL4Q1889247.