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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599ef7dd738e7be94b433cd0a0c38706208d17d2271793eea57d2b066906b2bc. 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/4fb961f7-16be-4144-81e4-80fc06e27756.json and https://artists.proofprofile.net/proofs/artist/4fb961f7-16be-4144-81e4-80fc06e27756.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a83872d6e5fe912631c35b0ddcb05fb8179a27ec51d2298da77fdef48c9cc5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BKLUI2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b76ccea46ebb8420a3153c1d14e5ec7d43543e7989e9a7bcee64ce0c8df80d6. 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/BKLUI2300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f3f6cbeb765e70c1467aba71190081512537ea9cdc7c7afd9de8de55ffc0f6. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZGLM2380317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4cd491fc1e05c32433e72804f04678da2e512f55b8a8806e0b099787a98c3e. 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/BKF312400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ba219dd31ed21ded20c7d4ce005beb7d28199306795f116adea45d2d03749e. 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/BC8AN2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c11c721fd66864e905f60a2b3aa9fda258db01b4897196d3f58f6843f46a95. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QZW9L2457905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a31b0efd52dd50460aef55d74bf0195d4f5066e8d8fecc5d79a0c8ac5b0e2d0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZW9M2452062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af8a7be635c552ad99b1cf0876d3afafc650ed405e864e0df6308971934132b. 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/QZW9L2430610.
Se Deixou Levar pelo Poder (Remix Mc Orelha)
Se Deixou Levar pelo Poder - Remix Mc Orelha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf6476c6fde6d86bb6d1141ac167e1b2eb77da7aacd6f377ba3b96402133fbf. 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/BX1KG2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76d0ee4fe287d49323f5ecee104f2954c019cbe4ec72356f99b76aaa6479f45. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/AUGBT2468532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76acb8df2eb45da421eecd4c31cbbb6153f8afedea4a30ba86df5224c71f4a2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BK3TP2400006.
Da Ponte Pra Cá #1 (feat. Caslu, MC FAEL & NK da Grota)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80006b78dcf2a1578ce38995a0bc258df02da60be8d644c9916e4cbc47129c0c. 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/BX1KG2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dee5fd6f7430d97defa3f6c95655a1e80954c2fb53fe9be8b86a87db4a2bd30. 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/QZTPX2475070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919a3668a046c0ed9bef20b2ddc7180a95ad5ff54d0c76428439bf7a08f9f279. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZTVM2409128.
Mc Orelha - Ao Vivo na Resenha Firma É Forte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ef87e3c6bf6057ce73d647b628b4e62ddce63333969e7c3d32839b08baab4d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZNJZ2476490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86289205b8b541bf55ee121e244971a993588222050a136aff4376ef2571cde. 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/QZNJY2470762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68d262766af1e8bc2d24afc0ec41381d9e98360d620ad15c807bf2bf50190d7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLS2414707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc14c2e2d9f6ebe20940a49e9ae73bfccfcd3fd3cde31b17cff4c745edf58c0. 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/QZGLS2414714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc374d72cdd8a45f59275db226f0c3560b72ad925f7af46bbc1b501a9d8978ce2. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZGLS2414695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cd1d751c363336b99621bdad49855378162fc1053b9cc3b969350bdcb7d613. 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/BC8962300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1733093cae41d68c82843db813b5e2edd4588c3e3d84d4d6184e040059309f. 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/BKLUI2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a75834c18d3cedc7ffd7b8e8eeabed4744e97bff9a0cafad388d7e286bf873. 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/QZTVM2356945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a4008f8e7162fd7ea66218027596585acfb9830b2d098d57f102b510d9cbd0. 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/QZNJX2364861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542cbdc6a1bbaaa7a3dff7d734f6c24d9dea51511c158bd28209f3dc0f270562. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZGLM2371724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b63c9641550923b6cafbc3ec86cf889abc368d682fb6272dc143bd3aca6864. 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/QZGLS2307383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7954a9cbddc7b0fdb142e80797adf79c947459c666dc63978057edd89ea48e05. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLM2371727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5907f8fe1bdd90c23a1c364376d54eb7bdc3481bfd797a51a42c0b5608eefa04. 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/BCD592300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591c69bad3e970ac1a1408678a9002f118c8389d61b9c8943be79a9ab60f188f. 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/QZNJW2223606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8302413fb3d49fbc83e5e8c655bdeb462c4a63a3dec55dfe6c113a4e78cf2597. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/QZGLM2274053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde27cd11e30c85cd103fe3355a11181ea5caedb209fcbe31f493d907aca2d85. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZGLS1953127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9643d84ea7c6f5f8d0c7c2fe81e2f4068235e308231188c136d49fb668454f92. 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/QZMZ92132324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e44d1833faae81904a949d886ef6f4838542b462d6ab2486b78ebb0b7ff2f79. 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/QZNJY2465440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd2295a95db25be87d2d7fbb64fddcbee3c4c2ce6a13833ada1594dec8e2c14. 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/QZNJY2319203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66989ddb7abc5a51958ce8b66db5cc25a6518c6b7a5da62a56420d1434155a96. 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/QZNJX2174279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540b593f53df5e0bf87d6f572e60fc2a13f5ad1717105f0f442957bc4091138e. 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/QZ5AB2147653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27255fa857761c66691d95e83c56454ccc2c0e44af517957cfb1b6b8ee798880. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/BXIV82329540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4150e18e3619558f2a7ceb8f193645138386fdfee2c3e803d3b8a60602d26bc. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BXF4G1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ba63b674f3cc88371bc8a635e1beb91b7fd34868ef212c6e3c5f08a04fffef. 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/BXG6R2401089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ba63b674f3cc88371bc8a635e1beb91b7fd34868ef212c6e3c5f08a04fffef. 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/BXG6R2401089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace8713625ed8ba73b2d7ee3214a1d5b1bf6174041dec721a36bc8f877b7fa80. 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/QZW9K2486013.