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 0x2cb5942e72bf0163448979a93f20a09b6a02a6e9235e9f829cb5cd9332639765. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b67a8479-e6ca-47a8-af13-356fc3f698a3.json and https://artists.proofprofile.net/proofs/artist/b67a8479-e6ca-47a8-af13-356fc3f698a3.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 0xf334fdaa74a3299c12d36a40974d45ddf7b3e0fea6036789c0f4e2f054687f1c. 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/ZZOPM2110125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759f69658e05d80e2aeb3bfc67655e98ba940df28a6da38cfb5231d838473b27. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ZZOPM2110090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6449108a1d712fc9a0d1dbc28c3f5785ca5b0b2229ce4ca4b28154ae2c5f7c83. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ZZOPM2115852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88628e7fc43b6c80873595a28d7eb0fd7b1f6152caad7f008f696957e4240c7. 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/ZZOPM2119091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a5c3b817356c9efc486d2f4cfd4d23fcd50e3a4c7ec6fe84a387b4a718b384. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ZZOPM2225967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58f1217981732e42d0dd988992d51ce35778d86e73926d27d72a02798b2696c. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BK4DA2307240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4832c412aa60a2ad434cd43f86e4d530e484f0a0aa2f4bc48b1f2139c21b71c6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BK4DA2307238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f4681acb59cde984fee63be39ba7b9ca1c1463497bad752cf0c51d0f05cefe. 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/BK4DA2307308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3529aed93d2aa114de0c0fa38a2af0b46e0db1b34cdb42a9f82fb986a3cd899b. 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/BK4DA2321345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a557222b7f75b55ea75cb62b1bde739b2bcc334c86cea7cebd4b4ff180443f. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/BK4DA2321346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c11a5aea74b4aa5c035002492efd0a515a34a757bb8c6a66230bf3b01a8c0c. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/BK4DA2414703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b49d293ddbf8133e777cbc79d5321c68992e24d15a1e8c22d67c826fa8db631. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/BK4DA2511661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3466ac930dfb20c35e838bea9ce5af8fadac282a9b1cb82e26688c37069def. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:52:01Z), 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/BK4DA2511675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0981be7dd48f812e405a60f7f29910b29ee1642b71f8df19b5c8522f1efb64b1. 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/BK4DA2511676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebd7c06ea7303449ef644e821e2d8bee5659e10ff44cf38ad076212aa883358. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BK4DA2511677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31dc370a1f5f6bbd53fac6599e6e2f35c4a16216e8c5d699e133e7fffad7cad. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:46:14Z), 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/BK4DA2511678.
Llegamos a La Disco (feat. Jona Caso, chuka dj & Ganzer DJ) [TurreOld]