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 0xe250534698a94b07e889affad65143618dbf60d27289ebf9c4b73ce3cf3a6b01. 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/fc4630c8-4a07-475d-86d6-d3fc6bebe3b3.json and https://artists.proofprofile.net/proofs/artist/fc4630c8-4a07-475d-86d6-d3fc6bebe3b3.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 0x65a028dcd675e46b7d73543c22d79f3524edbec804471b91749b34ca9d6239da. 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/US7VG1784032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f07d957b1b01fdccdc54112c1ad83ca7d0071f44f4243d6f2c7ab726b231d2e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US7VG1784036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa9b3fd93ffd632c26a0502a42520f5bc60320cb5ee676bb0a53dea207bc988. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US7VG1791794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7ecf3f644b19a13c2216a7f1925eeb23717a19021b14fe4bbb765de9b3fc72. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/US7VG1791796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9eebcc1a989b0be7ef7d4e7f185927d6e4fc42000177d0743d66ac12a49e11. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/US7VG1791798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22263eeb1e11ed5f984a62c97cb9ac33f058836fbca99a3bd89b53b4c87385b4. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:10:08Z), 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/US7VG1791805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef3f347627ad02b4969c00f0e237012a1dd436c934014c77a75da8e131e6cb2. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US7VG1791809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43f0f095a5d9d08c87039eed9c244b4f396fdbd86bba3c7f92f6d7d12dda40c. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BX4IU2204802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24927442d94c0c1ed2a8d462b62ff660a86d366c3e8312cddf3218fe352f3c6. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/BX4IU2204803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68adead0e1724016daa1ffa47261d84101afb30361580d944ed8186d577ec5c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BX4IU2204806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e02cc0d18a3675df571d81eaef50eee6c6a2d020aaeae53c2f0a44ef7a94fe. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BX4IU2204812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3810f4a391cf08d81a5b52e151ec4b0cd3074f7254cdcb44559f9757b11c26. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BX4IU2204814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d5212b4a6cedd714302cf5bd6a9c0974c7d6019e79b29ef5e505a5fa8d008b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/BX4IU2204772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262bba219081a97c09079e91a74a7487d375ea0f0df5c357e5fa72465367dbf6. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZEQU2079709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9289ad279a198b88a3c20ec8c79ef74027db39ca519ce3ed3e6e5778f739679b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:59:36Z), 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/BX4IU2204821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd2d203935e3c0c5fa93676f062e1b5c779d73b5602d02172c7be071158cc2f. 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/BX4IU2204824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0d33be20b32160672fab70a788fda0d099e284d1b893b6bf43802c5d0a2007. 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/BX4IU2204825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d1acbcf036dcf799a54503fdd5c01489b9e3193c263d20539e8a061fa9da1f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/BX4IU2204828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffbf6b257c5356d6096081b4b7c01380c55acc6e1cae0c9e2b522d5ec1299f3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:09:22Z), 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/BX4IU2204831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61604eae6b50675b3ceb60ce1e2451ccf40fbbc07731e9b52c8936f3b5ed08d5. 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/BX4IU2204759.
Se Entregou Demais, Louca Paixão, Você Marcou Demais
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5072de3ef9db929efb2c7b7f874ce8b74d9be8ab934b7831cc1b21f21ad24e08. 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/BX4IU2337603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ded285a3ff4944225591faa1215f54f0c58d85e22a9990751fc0a4c6d1b3c6. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:36:43Z), 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/BX4IU2337605.