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 0x6a4347708105e3139c2b3d857edf4cac406044f4e38f1b9e96f7fe84764e3434. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10e48440-03cc-4976-9c49-fd0963625d8e.json and https://artists.proofprofile.net/proofs/artist/10e48440-03cc-4976-9c49-fd0963625d8e.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 0x7bd48a062c5a6708214e095816f9b15a73610a66f405680838f5b1615aa64d48. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6N22040154.
Por que La Voz Identifica El Estilo (Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874ee9aae9582abb37bc42ae6ed734e46211c4be077f782c6c0f11c27d810da2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM6N22040326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404bbd9ef8e4afb5e70b1bfff04c4d89806d2bbff068ed66da7a7eda8e34fcac. 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/QM6N22040330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc4b91e5f2a8cc6aee971b2d778cfe50a47f601d6af5e67e1e43dabe91f143c. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/QM6N22040352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa327a869c4f5868b1dabe6bb0391ac906260e8b304a6ced7a55a8c41679f54f6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM6N22040355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a80be3935c0398b81f5a1e0210585b5b387705b9417b975932ff7bf8cb1a329. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QM6N22040357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0639eeedc0ec037bdda4f86a2269d0f5297348bfac059c2bac0c50a4ee9449a1. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:06:36Z), 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/QM6N22040358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2564d0eee9c817447fb2c042261c2e8c24b7bd878890967bec4a766ab209ba02. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T23:03:13Z), 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/QM6MZ1953216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d9592fe3090355fdd5bde548d7cd276496bb736e3f3fd97e1198b848643188. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:08:14Z), 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/QM6N22040367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049fc2996aa475ef49be026b2ebaf098995353c91832e08c522dc370cc4faae8. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/QM6P42097829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2911a8b4354fa724cd135d68495a436bc991289934a51c237f8fdf95f1b3cfda. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM6P42097839.
Para Ti Carlitos Rosas en el Cielo (Vol. 6)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb53daec2e173a1d6d40480ea86b2e03a6ae1b5ca10c1149cdfa1b5ac5c1f4a3. 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/QMBZ92047568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4020a06c50ce6f9fa3b108b17bdcd984c86a89b859483b1f738bbda2e1eba1. 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/QMBZ92047534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d8d044621c0e88a18dfd2d81035406cbfdb473d8fd575fcda178167ebea488. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM6P42104112.
Me Enamoré de Tí / Quisiera Irme / Porque Te Quiero (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89df9e86b3a0637d493c6dc44dd37e37de3e0cf89dd1cc40f0a9045ace0602e. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QM4TX2279016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203d412a13b3c1631bcccdbf20eed6b2ed64a55e1dff78219346e1c8a86129a6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM4TW2534292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0f7f599a82d42fe74fc77b86408e0a854f9cd8d2a623c57bf2a081eca9e2f1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM4TW2534294.