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 0xb6448da93acee865825a8c54335674c4e4fc2131f6080b2441ae228e6d28f61e. 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/f4707a06-f883-4a9f-98f0-d1643b2b50cb.json and https://artists.proofprofile.net/proofs/artist/f4707a06-f883-4a9f-98f0-d1643b2b50cb.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 0x80120d00dffd9e42ea66f53904d6bf08f4603d9e3e89d40fda739e8d8281c9a1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZEQU2209330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb336f7c1f4a9bc179ac02b84309365fe760f73201db751aa7ffd8d2a9d5b7a0e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZEQU2033038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf918350479444e4e2d6401891e401edebbcc74ce4726ba8b7fd5bc6c8409ad6b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZEQU2033040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf0ad0c40ba995fb989c9935240687e7561afd15335da5b59c13929ab1183ad. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZEQU2033041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed2db71dbedd2aaa8de46d861e9f258ffb7dc20c01303b9740843b4b92caca9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZEQU2033044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815eae6db4545a834351b1e23e2bd89bc2a69ec53a74bcd7478a6ad2b49af776. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZEQU2033057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedda7aca8801399d3849788d2a0a1877a6a386ba4e5056f7f774380c1156cf8. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZEQU2032702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed76c7a4a3257f6cc6d0246fddbe323d67ea71be26ad6419262c39b8e055c50. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZEQU2032706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b727b50ebb0f753d223e1a3c07a9a7d12755eb61f7c9753c09db4ec5d2bf88f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZEQU2032712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49af23dc46db3213458c6bc7322686853ff713ea57678f22a763ad1bd990e07c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZEQU2032677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3788191525963b1df77812a91b39b02b23929f99d219de71430ad8bb82167ed7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZEQU2032683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d5a3f046b51753cacdb8fc992339e5c1a6251417b44a9d32aca6d1d252324d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZEQU2032688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f1a688a09ce1c3e87a4411cd43a84bfe28c763c007fd0cf79623284626d5a4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:10:15Z), 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/BRNYC1900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4929a469fab85deb73f09eb1062be82b80e18268a1a28c6e5edb38d51a41f949. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:53:41Z), 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/QZEQU2027486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f6e49421a93847e90ef191217c900277fbb990e1a83e9c82ec0821f9f70850. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZEQU2027489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2890855686d559cce7364d93c2e093703bbb78e315c41e22395a4a00ba227d1c. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZEQU2204235.
Chama No Zap BB (feat. DJ Ivis & Nuzio Medeiros)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07d9e93454b899113402c3de4ce490e790189c9286e5338ca912e4438afa17c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZEQU2215835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1496237ab4e0b0b5bd1ac45d233e3a5cbedcc56089dd30a5aebb5b7742a5ead3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:07:33Z), 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/QZEQU2219077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e12211e542913c4f83d3ed849a2bfeb96a3911cd753f8cad1bc3b0a215eae4e. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QZEQU2224687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3f60d503ec7d75d7fdebed2f79721190550a81f8c22aa570f04109c8b197fb. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/ES35F2300593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44831219873e7ce9fdac6a70dd2b286871c1bf5b29281a92f17ed9eae567766a. 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/QZEQU2212225.