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 0xe4414c50033926186ab982b85204d5987cece3436d2946ee96c528c054e31074. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d3989de-edf2-4d73-99ec-1bdeea156844.json and https://artists.proofprofile.net/proofs/artist/7d3989de-edf2-4d73-99ec-1bdeea156844.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 0xf75be4364713e83585b978ae545ef2bb025499ca0ce9f9629f425c121782ace4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BCAPW2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f208e762d3625869bf3fc4c618a1f3a5935da39bc7b8e27331912a6620d7d2b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BCAPW2300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3032ae5bf529e5df4d97cea3eaa073632b015281ebeaed8416be1006f2c6a02c. 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/BCDHP2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f1efb2a43d71cdd9c788ccf30d95e1ff76749b7f674226c9492766483bc938. 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/BRUM72202169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9092a4927e1fa02a80ca3c88f46cbe81c101e3de4ccae317556488d4c79add5e. 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/BKCC12400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd4ce8b98020200cd51993ca4eb3ac0c73a27a12aaaffdb6fb2c3de416a8dd5. 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/BCKKP2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113b4de3d3b6da6a36a14adbfd8c3cba013cfe69349dafee62600430fd44d9f3. 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/BX7O92300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbda4ea3c8ab723e03280bcaaee1ca7cad933c692f2c9869c078406d5caa91a1. 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/BXLWP2300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf659d7091b6b853a30889622e33f8c6a459f12bd3fbcb941a7115651b94e44. 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/BCAPW2300214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0238a75cba6044fce4d1fe4263905f3a3dd8c965dbd360b7614ba4ad45040b. 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/BCAPW2300179.
Vem pro Baile da Selva (feat. Dj Isaac 22)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163c36fc3d5aec0d5f564b767d1b51b584219310aab464c9aa0f91e0d60227e7. 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/BCHTZ2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef16edac50b4f3d443858bed545434225b1d56d3c59234e51c7616f43a88c73c. 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/BCAPW2200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79bbaeaf4573c97baa2da1647df2416e95e00b1811efd190ca37ed1a3420bc4. 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/BCHJR2500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906771015d2f1b44a36f63ecd3c65267bb864481abbb94706955a9e78f425631. 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/BRUM72401324.