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 0x56fe07515d9f10efad9513cd3debef645a5a748698ed213a25746116186e4481. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed7ffbe2-8f99-496e-acd8-9a7ec885c571.json and https://artists.proofprofile.net/proofs/artist/ed7ffbe2-8f99-496e-acd8-9a7ec885c571.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
As'lali (feat. Kabelo Sings, Philharmonic & Tracy)
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 0x843f69f1a9bf5dfff556f7eb9b6335e7f15fe9742d95f15f90e81ec0350987b6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZA41S2225569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f45136e7e46e416a709e396c653133df1660a727d62c99d85e5ee933f8297c. 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/ZBRAD2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fac66c30d606aca3dd940f64b1f40bf5ed9b37e7e162633a5ab687ec6af5d22. 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/ZBRAD2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b93a6adb61ccffc21074c6a73bae80bc6d0c1786aa13933f6bda984889d5b5. 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/ZBRAD2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993ede21e1724e1d335ed36d12237fa60a93cfcf86243983a7b7b22220365233. 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/ZBRAD2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a340240b1d604020e455a501df64e2305fdb3a7bf059b8e87a5fbf0f6227d3. 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/ZBRAD2100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1febf2d0daf45dc9d89371a891c8de4c1b902f4170526153897103f2ae7c7e. 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/ZBRAD2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fc80c7de1a702297af923a814dcbfc5eea3f07112a224919bcf5d79ee4a75b. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/ZBRAD2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4173b312cc63dac739dd1ff1f157db87c2275f76fa2f64db816feaa32273c82. 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/ZBRAD2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36793a9127f263c1937baffa36078f5ff4a3895fbfd69b99109635650c6093ed. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/ZAUM72300779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc595df62a8664c8456865f180a3fe4fcc3b50dbf304a6e8f4859f3ec33920f7. 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/ZBRAD2100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb475482ee864c42bc77235bdae05ecfb07fbae3db5d44e35e86947e64bd8a362. 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/ZBRAD2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d19d2835101a18532e28dece87a0a4f5552bf486b6af8536dfc6611ac7bbd9b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ZBRAD2100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028dc4a89c57471f1a22e7a85b462ff6aea13733eb28dc531eee158a033e6602. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ZBRAD2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f46fd2a3ee99beffca998b340b0d80494a32dd48d3b333337f6fab6b7f9a09. 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/ZBRAD2100031.
Why Wetsa So (feat. LeeMcKrazy, Ndura & KabeloSings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2c199ba73889a4c53f9d5cea959386ef8a820b8d5a7be82f4d8de34e220caa. 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/ZA41S2225296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9553631a2eb2bb34a6a551f1371e4de9267435d1c378ea6ecd5e9c437ac52d37. 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/ZA41S2226564.