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 0x4228526b26c1df449bcb835065bbc84796aab669651ab7a6b3df680e35b82355. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e308932-8a11-4839-a718-8fa0b069676c.json and https://artists.proofprofile.net/proofs/artist/9e308932-8a11-4839-a718-8fa0b069676c.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 0xb2ca47d03007971eafa9cbfbfba3b24207cfc61960082c9e2127623cdfc5fa6c. 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/BRACT1600292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a90cf2eb020d5719b7b442f90078fc7f9c17cb395256111dc09dea1bf5d34a0. 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/BRACT1600294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa2f5883448a6ce37326f363245514ce2218c610e0b872d9b80f9c9ddd75aad. 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/BRACT1600295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5da48341628764c0435227fbe9b76a799bf398cfa4b90b047dddef2d2fd0e65. 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/BRACT1600296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec344c08da8e1358d101f5a0038e7279eee2d5837a68a18fa6bb3688eb24efde. 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/BRACT1600297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1237aa621130c93ac920442dd5aa53cfd29b11e43f4fc0ccf79fb9e135cec1b6. 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/BRACT1600298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef28ec1f485f0e903ed838af6998199f52ef4caf25d1d7adbca9c1f5069dfbe. 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/BRACT1600299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7067d520b9aa88891c2a22121c97579dde41322654a7423a3e1d2123681a5b56. 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/BRACT1600309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78d1c9268dace0d929c4fc71eb264aa7c9cb7bcc41cde7abb7d8419cb2bde2b. 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/BRACT1600311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae74a39a2985b391cc8ec6891de2f5576d6e79ab1ca42e606ab7c2086a130fee. 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/BRACT1600315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66faf9f0e3b8ae57640313bb1a0f8ebfa4a0105dc48be98f68b392fba94080d5. 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/BRACT1600317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6819f69dcf1bdea27f77413810231ed4bc1f5181697022a5f9c7a9410487940. 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/BRACT1600319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5cf9774d667d70e6e004d865f885fb7e94f25aa3e54ee9756a610cbbeadf3d. 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/BRACT1600323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671a1f349c599f37ee087067239c6dd705052abfa8dc97306e670aa9568a91a5. 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/BRACT0500375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cc54b46f81c1186394ba8d345a32fe113c56e25b9683e991aa2ec87fe1b86e. 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/BRACT0600214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82293fd23226ba3c7612c86311f4e8e6c1506d672628e6f0fcbce9bfcd3025e1. 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/BRACT0400439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ec3151c817a29e4004ec96080a159ff017f20717b46bb25018d07faf1fbe12. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRACT0400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8b19d6ca18cbda1c359a7521d57a26d80dc4faad8093260acd22a8b3fc6735. 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/BRACT0400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1a9483c44c52a73323b095641758b0e9507c29518f848b13afc04a5851daef. 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/BRACT0400447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc10663cc3e855330c9b89b2f49a06f002e339b120097df4fde692682b6828f4. 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/BRACT0400448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc975d3d61e0f948438954df8c1f3326a52ef2c6018fb654e93b9db65db584831. 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/BRACT0400450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1de9a566d392adddd550faf2da8f7ef1371dc785db1ef30b5f3f84c25e409c0. 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/BRACT0400451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca45a5d56a61fbd870dc7c8906c26e3bc5ab563acddb57b439a34c4d358ca80. 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/BRACT0400452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2273513a2aca15fdc567d8e0f941ace309e28ccab51c0aaeccfdb068a9ec600f. 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/BRACT0400454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2755853fd3b1c56c1afb8eb11a14f129f12ce895f4c170d3b24df1421a2bd9. 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/BRACT0400456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53eb35b654c4951a7690dba22ed1afbc55fc3fb31f331fd5c64e9cee4f390152. 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/BRACT0400463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2273513a2aca15fdc567d8e0f941ace309e28ccab51c0aaeccfdb068a9ec600f. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/BRACT0400454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cf12c1c1ad7874be7d599be9dce0520d57efe68a12fcf4134121e05611e91c. 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/BRACT0400055.
Não Devo Mais Ficar / Have You Ever Seen The Rain?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78330a0ef3a5f365408010baf5f5e9073db67854623e273bd53f8e9494fcbb9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRACT0400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e944f69472ae6c70f6f9451ffb80172cb72c2527011fbaf799a1133ecbbd54. 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/BRACT0600383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50249c01fae36991108fbfb1465ba3c0b91110a2fa3d3db69f16ac50cd60448. 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/BRACT0600384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b5b893acd3cfc4896ff673b37458eae77e14fce32072c7e2cc16667b5ed94b. 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/BRACT0600387.