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 0xfec2b4f78bc158e545f7b3bf8eb9f2e32a795a0739ead4d3cc80dfa74175d7c5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a25171e-f2c7-42ee-8e1a-812423f01e2d.json and https://artists.proofprofile.net/proofs/artist/5a25171e-f2c7-42ee-8e1a-812423f01e2d.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 0x90176699e052f1a79d4278621dcc08a24f53a17ef5d6d76e9a0a59a3238845eb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:52Z), 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/US38Y2501506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5278db60fc2b46b57b3fe8fff14a939e64d3ae83546078ab67d937092d6fb4. 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/US38Y2519853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fe54759f37d3a5d7ba848366ed879e174788c7928a76bd9fdae002b07fb7d1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2530372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5296f7794579dbe89f2ef9b992e12afe61a5dc6b644a287c6434937f6a8e299. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2530373.
Bécane (Emre Yuksel & David Hopperman Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b3f4026a06c6d5cdb9ff9b102d611b5845d452273f8d1a4e194a03f30f2ab9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2530374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616fc215a63a2acf8c0dbc1c39d6c01f035206e541126ace8e77864b06968c1b. 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/US38Y2530376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e92c12219fd5201b9ce770cb0710746bd8543bd811ee01b8e7d62c9b42e7c9f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2530378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c3ef48274ea2ff6ef302af71b0acd11bb68c6c92a9cd5f77951f5de04b0135. 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/US38Y2530380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aab1bc74a11283a409b31665c097d462a24cb4dd58907c73c7abc67def94fb3. 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/US38Y2530379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4942963bf6a90769b2272b48385976435feb1f98a971d726b3ca087d9196f70f. 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/US38Y2530382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8642694917967c3dff0fd175fefebaf3c1b356a696bb106a19fe08ed67cc7fb3. 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/US38Y2530383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae090390116aca0f6f125d36817f2cd3410aaf7974f59dcd38ae075e195b8fb. 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/US38Y2530384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1212f12a4c1c6524cb03aa4a57c0061ca5b31a645bd5a0f51f557e7f3a3ed161. 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/US38Y2530385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b7614d84a035015591d21c1860a7773ed01e4ab33b3436f56f561960f6f998. 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/US38Y2530386.
It’s not right (feat. Helen Tesfazghi) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4665f6d17e4a31feac13a020ef9afac454fe717f1be4d3f22f25ebd6284e01db. 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/US38Y2530388.
Povoada (feat. Sued Nunes) (Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e65bb0a59130f9d7f73d5364c02ea0b969a1c08a27d7913bbc9ba93edb31ba. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2530389.