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 0xfe6208b39e20345c2cc16a47c3ed8b84a2923f65b926b9cbe76cf5e6f09c4ae7. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43b991de-ce6a-46e8-8b8f-cc2c1d44fcf7.json and https://artists.proofprofile.net/proofs/artist/43b991de-ce6a-46e8-8b8f-cc2c1d44fcf7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
XX Anos XX Bandas: Xutos & Pontapés Tributo
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 0x0800c29cdead61d779405abccd6f9b95b0a5881a6a0962a1cbb4d89b447a81fc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/PTEM19800256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b2bf96604debb1af092da200a18a5921e3dfb7b5fa3b083b75cd86cf15088. 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/PTEM19800263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ba50e9e04b17e1f2a1c64fe28e9e0d8485aac16a805a098a7259925d124ef7. 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/PTEM19800264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bdd20400e9477bdf9bb641f40703c4ff479f9f3c12dc830c58740bd50f576f. 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/PTEM19800270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e687590320b1fbe1bf0beccb7eab6dd6349fe9d194995fac72d19f3d947861. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/PTEM19800271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf403f7ed3a58fca9e4e18ef6a9f9012b951febc491bdb057a51564411819d63. 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/ES6089680302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f696894cdfd2bf8184a96a496ef9ed941290ecfe42d547e32d6858a616366d7. 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/ES6089680303.
Maestro Reverendo E A Sua Orquestra Antabus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0a18e30e6b65271764d83b13db1b1c801e122586a2be0614292a824a34f900. 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/ES6089680306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7598afe41297403b78757d142452216b5d98e608856c356527758c599c3eda96. 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/ES6089680307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa234b6f9ed31c53c529a787e246b33e59bbfb769a5c58d9f90ae00a507ad7429. 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/ES6089680308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd4e912221f338db682ce49fe7a115a0f107ac28bbcf4099484334e659cc226. 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/ES6089680310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdcc06bbcf2c95a7642361e835d10b687d2f3a84be9edc41d6311cf0f965903. 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/ES6089680311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab8d7306865c7c56f7e380c037e97cc5b2d148f87644aba5bbf05fba068ed09. 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/ES6089680313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae2cd2d6cab27f41096bb6626e4ab9f9493f31237b866e905d766a5b793f07d. 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/ES6089680317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3914a83cc97c38a9d97ea4fd20a517dc1d561f92fa993c20f311950032a7bd1f. 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/ES6089680318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cbf07c0fc6b2cdf12c654e3479dcfed831eec4a6e7c6e038e5e94c203c922e. 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/ES6089680320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb4800821fcbc3aaa3319e0db1c7d9e6897e41dbe82b06b9121c4ad5ef28c0f. 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/ES6089680322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72836db316b4d0ce1c652f73957a2b8e8df8d165c729bbf6a40d3d2c924ab1da. 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/ES6089680324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75b6e38f57cf5ddabfe58149ad79f652ca83c2a37bfbb64f3b8b3060b49ea85. 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/ES6089680325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab50a69b54fea7ce3a8666fb351c857387f7682368840109810bcfeaa73f4531. 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/ES6089680328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01f560f49d0f77d0f41ffa78f4b0e271caa89559009e6bce5fce064414bf066. 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/ES6089680331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602d17bfc48fe9a44bc8ca2d77ad8113458c0d2c0e2f8775542cabf46e9306d2. 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/PTBM11600072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30427604919f41555ddd5902c6e026d7d8dd5b9667771434079c51d54bb9dab0. 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/PTBM19600182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31134f262aaa1320ef58023377a57869414509901fba391725e8b64d9197460e. 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/PTSM19900013.
Surf In Portugal - Unplugged (Surfin' In USA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31cfbd9327222f679b4970e385df08027e74ca07cf7b2b9550ae21f9120b9bc. 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/PTBM19400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf10ddafa4d8a2dfa06bcd9894d14f1c67df5b9dbb963ec68af2690589f9d2d. 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/PTBM19600185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96da696c3a18a54d9e728816400dd307ef8f6fd336016f1b10514318aef2a1b. 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/PTSM19900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d70f96106d8c9cf44014514f364bf2804c463e265381f91cba1c72d61d2d62e. 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/PTSM19900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cbc955a1e4ce4e67cdf246e4e7166fd4ee624894100e5d69f363578cab5978. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/PTBM19400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10392e437dadb7358d016815db20e341bf87e029f4fe390c0094e070ab6d9e26. 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/PTSM19900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96da696c3a18a54d9e728816400dd307ef8f6fd336016f1b10514318aef2a1b. 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/PTSM19900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e9fa6ae994c5f20225f0ff3f90355cc487a879e9bb2fd75ac1cf5d8cfef3cb. 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/PTSM19900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31134f262aaa1320ef58023377a57869414509901fba391725e8b64d9197460e. 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/PTSM19900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf10ddafa4d8a2dfa06bcd9894d14f1c67df5b9dbb963ec68af2690589f9d2d. 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/PTBM19600185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96644da9ec077fc0e02e8fb543b687de5a59d26a3d3eb5b1be9cd2dff9092ce4. 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/PTBM19400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cbc955a1e4ce4e67cdf246e4e7166fd4ee624894100e5d69f363578cab5978. 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/PTBM19400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3207690647d4337d86cbdc5cf76e288f10967cca442328afcb85d6283d2e4b5a. 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/PTBM19400046.
Giroflé Giroflá - Mary Had A Little Lamb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582f82467ee7e0f2ca29209c2af20bb706cc7d5f177777ed529d66af1006a370. 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/PTBM19400047.
Isto Nao Pode Ser Assim - Somethin' Else
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e3dfedd6d04f1737581d40b82b3dae6b27303f407f6af35da3c521a127e0f2. 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/PTBM19400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4c19aa7e7ad78a447fa45bcbf34be1ae1ef9828ac8b785d78e062e39d1a2f6. 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/PTBM19400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602d17bfc48fe9a44bc8ca2d77ad8113458c0d2c0e2f8775542cabf46e9306d2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/PTBM11600072.