1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x774f50d8adf4b4064a96124784cdd4408b54e18cf98b270c75aba2c61d5389f1. 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/bad40357-f130-4a8c-98b8-fbaecd52e0f1.json and https://artists.proofprofile.net/proofs/artist/bad40357-f130-4a8c-98b8-fbaecd52e0f1.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 → block OTSBitcoinBlock must exist at that height 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 0x4b8cad45f7fcc8d5ee85aebc68a58f9c75b0b3db81aa4889eeef3bfe38e95fce. 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/US7VG1706126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687252545370ba0ce4c0147f835ad86d62b7f5b9ed51f56f55b0abe16a08e5f6. 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/US7VG1706131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3d982cdc3a0642b778a5dab186bee3755dc5e0c21b01c5eafc2da7be4057b0. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:10:38Z), 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/US7VG1706134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed8312db1b3ce4ad0e3e148abee8cc6a6e31e96bf9102d59c7c3dffa38466aa. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:10:26Z), 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/US7VG1706108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd706b0963a741eef64e79cc65b9e187a9fbf4147434c9d66378ae343439d6952. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/US7VG1706109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a09a913d3327b8716edfd706b2ffaf4e8e944a971843ede0bbc29f67f723da2. 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/US7VG1706111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd8b8a9767ad4eab122973a68c6b3de5f6b03600392a36513316f518fcb202c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US7VG1706175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31dbbd7493c58ae4bebd7675c0a58362339d6c3b0a80e2f14840dddce53a928. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US7VG1706176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a249d9e93bd87609421415cdd481d25d0d1450cbc4123441a5a55a48914827. 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/US7VG1706181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa11b8ee6e11d83f048f49efaa3498071e2e7e13890e8f7769e5dab6de08afc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QM6DC1518810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2e36ad5de9741db8c3325aa97765c35aa69a810d4459af5070d71049346a6f. 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/QM6DC1518811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382d37096e0adf1bcd90a7874690a845018b85597a646a7a5746e2b4466499ec. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:52:43Z), 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/QM6DC1518813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a2285c9ae4d2d278c810f555f7adecd9e367b67cbe97579b9ad9d67ff48e31. 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/QM6DC1518814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400a326f71e00b5e5f5c1b78ca73a5b076188a34af6406ec7d9f5079c1e35f92. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM6DC1518815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf7bab46d2cdf2d7c67766f01f900f2f1ee899d914d6609da66a12f23afc757. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:21:35Z), 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/QM6DC1518817.
de D.J. Agua Salsa Lives in Cuba: The Ultimate Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65ac584a5439d2243ff5e0fee9fade8fb5451c7f6e963b13fb49ed51f0ccd9f. 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/QMDA61419919.