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 0x02dee378cec8a0631168fb16dace6172442fd490313676d34d9935a73f5c26b1. 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/65196e76-dd04-455f-adb9-50e46a361ae1.json and https://artists.proofprofile.net/proofs/artist/65196e76-dd04-455f-adb9-50e46a361ae1.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 0x0930c1d8f15a0e0d178dfbf27319657bc08767e7ecb38ecb72ef1ef3217e07ea. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ZAXP32300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d513b5b9eec937e223d47f812c09b34dccf9bd1ea68776accfebffd81a165f7. 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/ZAXP32300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d513b5b9eec937e223d47f812c09b34dccf9bd1ea68776accfebffd81a165f7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZAXP32300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4080bc57a929981dc2c283de178ece8d2bc5fba10a4583bdb8056bad05d8de85. 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/ZAXP32300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0930c1d8f15a0e0d178dfbf27319657bc08767e7ecb38ecb72ef1ef3217e07ea. 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/ZAXP32300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b519927786cd40214779282badd85d5c9263e7ddd639f41fa81b76a465070d. 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/ZAUM72202524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7faf859f0e21f2d265757cb47f96375df93ce9412dfce9c54d26cb82587513. 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/FR2X42320367.
Bhebha (feat. Myztro, Mellow & Sleazy, QuayR Musiq & Matuteboy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8328eb97a9b809831ac8d374141032b65717d1f75d5d9b45519ea5fd407540d. 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/ZAA012300039.
Chengu Shesha (feat. Al xapo, Vyno Keys and QuayR Musiq)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28ed6d7e753b7bd5e32a36718e80df7d1fc9be8f8d31a148f5dcf31820db681. 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/ZA56E2416088.
Wena Wa Pallwa (feat. Ch'cco & LeeMcKrazy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220859d5fa31ba9c97bafc1b71fcf7f144b0c0f5a1c7edb114e5a693b6e6d579. 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/ZBA1X2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c092eefbf54be0f6b798199f796bf41d293d691c86b48c0d84a0d868239169. 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/QZFZ42329089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e037b392613d82a0c9fb4b71412f157ecfd7baa4460aaf4c10e202a266e0054. 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/QZFZ42334220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9839626a0a5308ac5c05eac0803a4bb463b81d08f86015bbb6dce584ef2db3c4. 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/ZBC042400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58472650de93c332079b850d9e346f3f4527f55dd5437169e9fa9ee65e4ead6. 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/ZBC042400009.
User (feat. Khalil Harrison & BoontleRSA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802dde3a454a69e9e3155431d6704b29fcdb407f15ef183148471f0aefa17f98. 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/ZBC042400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed5d7c81da11b1c762e6cfd3990a876bc66e061f6d0dd60480d8345a76dc784. 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/ZBC042400016.
Tembisa Funk (feat. Thuto The Human, QuayR Musiq)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4225c0a3d711b0087f94778be2854069d3fe029f0f448a88b25862c56120a1. 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/ZA56E2415936.