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 0x9f33f8443019aea8f94de40667bab181fc5d9d3cbad52775c27777be95163321. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fea10ab-836c-4e5b-89fe-881867c1bec0.json and https://artists.proofprofile.net/proofs/artist/0fea10ab-836c-4e5b-89fe-881867c1bec0.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 0x2efd9705baabdab3776bb73ce0e2c1f25e1371fc6d3e32b87aac86010561fc4d. 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/ZA6EE2000073.
Buya (feat. Bassie, Zwayetoven & Lwamii)
CBD Sgija (feat. Thuto The Human & Shakes & Les)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8f4ae144b4406baa1f5e5df814fb436e47faf8e07257328514717e885750bb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ZA34K2301672.
75 (feat. Shakes & Les & Ice Beats Slide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44602764d43f469541f37d7224ace62e62817c89714466bd40124fdf81766e7a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ZA34K2301673.
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
Ghana Ghana (feat. Mfana Mdu, Ego Slimflow, M.J & Mr Pilato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5079bd48bce5c1dc3965745fe0c4408d0ea4fe193e0c10ab1789ac7ee36439d5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA34K2502793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedef6b5ce3f6a000886eb93a49be63283e4de43df14c3750d10f379cb84bf5ec. 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/ZA56E2303925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eee4a934e27460025230040570cdfa48a7eaf90f8cefd26f55683535669f0d8. 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/ZBRLA2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd728822b38cf37f6f52f866fdedd9d61e6eaf8812770bd634b5064184ccf3760. 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/ZAUM72300960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f9f6e739610e82c1a8ab1e95839de743f87c9e1b15625febc0a87ac2d90d59. 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/ZAUM72300963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9504ad8775af44d765a42dbf098afd9d4d29d852da177278b7e0e44ab1366f0b. 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/ZAUM72400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89025ae5ab142c9910506e7f70ab7c03b619a9467100f82b84175cd1bf1fb50f. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:55:36Z), 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/QZQAY2339045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18612d36d0f9653b6427ca9b38b72e74a8d79c05b73ba4951cfb1c5980ec08be. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ZA6EE2000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5e9f0b7da9fb69bff6f9be31e727c97daacc4f1ccbb62987d55267bd136f1d. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/ZA56E2303934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104de25c8d1ba061a643e5b0612dbca2628b53d71e4562f8c86f7c3e5c805b28. 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/ZB2312300022.