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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855886b4379b0e9fc4b3393e5d554703db79101487344a8944966354576e4510. 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/124217ea-4114-46b2-bf70-04a61283f85d.json and https://artists.proofprofile.net/proofs/artist/124217ea-4114-46b2-bf70-04a61283f85d.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a924d62939f8e998044da9863342c5ef4ad7b054cae15b7c25808a0215b83c. 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/QM4TW2284636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c37d6cb7209b81861bbb90738292ff6e4f0d9b329e56166cf2270261ac97f7a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWDD2467034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1eaa1ad6a284644e8d634cc072595ccd918deecb3b5c1ce04deefea47bb569. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTRX2409479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aadd78091b06985e3d6c6dfaf15ba2fd3090e548497dcf12e3b608f82497a9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBWUL2447620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6625e54776da98f408da891a908e7c9e02388f3574fb35a39ccf458f8b6e69b7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ5FN2480178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9077d600672781df13b7b4ffe9591f31c8528af16ef3a9a888424f83d0bfa5b. 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/QZZEB2359263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06de8a4f9ca99ae7499acd17084c0dd22362eac9ead5a60bb02d22c4dcf036df. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZZEB2318439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fb58676c59ae280bacf89bc988a5e567bb745057738a0f93639d2dc523abd0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTV32377524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7857398573a9a9101408911acba088dad7dffed49cc8f9aa2a0da969e78ef0c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTRX2375664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74eb28fa637229438bfe28d80f5b1a2e6903152a1a11a970e8b88edac6913cdb. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ROROT2302550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf30bb33fe8bfdac749f2aa4c41d7467edeb3a95cb3b948368151c2c4a282524. 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/ROROT2301440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75015af3338d90078ccf5eac56e4ee40a6308a6feb2b6de7756b1ffc78f988f. 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/QM4TX2371110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc6f5eccaa0c1e166217f1c3f9c7210eae3840fef31ffd1209a7683de88f34b. 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/QZTAU2203979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8178072fb5018a7b205a4aae95d2e4ada221295a4dd70ea996a6813c1acc1a8e. 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/QMDA62215863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330069ea0b2fdd5256bc6be97cd9aaa6138de5bad5c4124f01cbfeafa081225e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKD3Z2108253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1991fe58b4afff6c129ad8291015cf31731607fb30209b04eee98f518de04d7a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZHN72286441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dae816996954203ed0e82e0ca1c9ce96fd7533863033180d080b71b84c220bd. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZFZ22227876.
What Would You Do For Love? (Amapiano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c75b2df8f6be1aaf5dc9867e566690580ca4baa0f05c51fec069f234bac417f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QMDA62141270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61d5a266a1a9a26f0d3842ffdc495a70b35532f8685f34b2cb0e08388198fcc. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QM6N22134808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121a5629f33db654b332d939558d76e584beb7c9c377d168a426a8b70cd58447. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QM6MZ2122237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aab1cbf8945843f1237331677a95f829555d08aeb0bc4f868d1253c80c5c21. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZFZ62100575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5c3946422df28f35079d84fcd6b5889ab9aa8361bbdfbc8ffc4deeb90c7525. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QM4TW2171469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7769589ce4625a4c4f50aee907f13ec6c3226e493f755d543a6028291b185dc4. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QZFZ42102857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbf50b26ece2a53e0f33668299d988c7d5d3fadbda3e5e99cfa9e2164438a19. 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/QZFZ32162225.