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 0xca46c2f6a9c969d4b2894d39bab3257e6a670af46e9ce3d2697930a8e91c0976. 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/df828401-23b1-41be-8638-f8d76963c016.json and https://artists.proofprofile.net/proofs/artist/df828401-23b1-41be-8638-f8d76963c016.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 0x8c10902e5601d5683b5fa4806f31d3fb07ea72908480568e21e21cf33977e3ba. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZGLM2206948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb83f0cb04f22d9b6315644c9b7b68f79ea6c264109eab73f453b250e03551dd. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZGLS2237744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ed7be7471d4c6888fc778cad1d7684565df447a1960ea9dde589612de25d45. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZGLS2269958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdacbca85437de8cf26b695a02965c618a521dff7bac20facac394732b349c3. 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/QZGLS2269961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63947c160df533b7508de46fcdfe2f61752e8b1c587f40a89814262d65b2693. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZGLS2269962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bb5b4e1e97c4c16ba8a2becb0497e7ed2d3d0866ebfa9333390a171aaf46e9. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZGLS2269964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f027bdb66f3685af4de82e25d35a7c09601fa02095b50a8dd2f6d3057973037. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGLS2269965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03813b15ac1407d917a19c9e201470b7bc992b701cb7b54da0a8a782cdc6db2c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZGLS2269966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acb110b526a992070c3f08fd44cee7ce821fe3e103bafed45e7f3e0e80da6dd. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:00:44Z), 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/QZGLS2269967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3ffb5a0f2a74a311a6239eb36f34ee72d5c0e9545244e62d8af218e83a3981. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZGLS2269968.
Bonde Alvinegro Preto e Branco Nossa Cor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125ca9feb4adfdb7a35e3b646e00b1d692fe6379d2b462ff5b15597bbdff61b6. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:05:45Z), 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/QZGLS2269969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554f396bd4baa0b4ccdfe3c596077cadf26e32af29523d0d000d19eb13479c28. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZGLS2269970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7080c1c537bf396c2ace6a2aebbb91d6bbf37f088498f2aec5b186ad7f2c6baf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHZ62278297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a5814be85dc1a98e674c851a526d420993b9bfc3740f14b39c79b5abbf33b9. 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/QZHZ62278299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845279ff7a513bfdb42f8feabc858b279265776085d787e5ad2ac7625134fbec. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHZ62278302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0193b1161153104f55d8cb6387a85f02e1541e40182bfb34a65a369b6f606ff. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:09:35Z), 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/QZHZ62278305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb962b9e3fc2a55c755d680366f1182351eddbe02a66f8eb709945a32010018fe. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZGLS2283268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0258cfa28a46d5af32a8e913712885897b5952bd8b584c4c14a836d9f097cb5b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZGLS2283270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5976d1aa9314d339461d16ec36db8ca7fef613450ba322139e44b995fe7f02. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:00:29Z), 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/QZGLS2296689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7c21887804268557c2d54f20f3fbdeb072ede8d2c303fa011b9d6e8aebd002. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZGLS2296692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5ba8340c03a8abb1d80109f13cf0cdf2f4bff1b6bfc68aced406f285ab5a8c. 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/QZGLS2296695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fde0313cf8914d4da8f7492b3a13856ecd2ab9188e7ac907ecf76c7ffc6ed94. 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/QZGLS2296699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde024a1d33c3ad7970a02ab577a82330a50c07cdcb969e114adbe3407cba6107. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZGLS2296700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70ad3d57d6d27a55ea2e50f109fc507b07af718cd540271cb7392092e158f6c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZGLS2296703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd575c919b1f4b59d8c25f569ac939bccc17e0ba1392d7a68f03bb70c2c089b8d. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZMZ92418534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6385e1a09f8526802155d4dd346a8bd79979514c3b4b47de1b0059672eb5182a. 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/QZW9L2464324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a428adf1a00996774f40729c4be4471529c2e09ef246f0d5439300e3ad96c33. 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/QZW9L2464334.
Cearamor - Tem Que Respeitar Sou Primeira Divisão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5893530a3699dbdd29a7071f0652a6df462e8d8914561d0213db97a0b0907cd. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:30:25Z), 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/QZW9M2423818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1f3abfa60e8b447e21a966d799b695635ab71c1cbbec8a5191e2eea77c67d9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNJV2571134.