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 0x64ffe77eb64f8a510ae00cf2016f7f194712e2494b3fd4d1f3473f9027babaa2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7ca4aa1-7687-4556-9cc8-25ac80ad5e7e.json and https://artists.proofprofile.net/proofs/artist/a7ca4aa1-7687-4556-9cc8-25ac80ad5e7e.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 0xcf1bb0c69bfbeb317584c5e39dcf6c3d4af56706fcca1da16aec80976da8ebee. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:01:38Z), 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/ESA012139096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b098b40cd13a238f096e9007a56ed88740ada2cdb61a453ad753f51ed4e9a6. 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/ESA012139098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b884d4cab1e2758111818cc9ffb4a2be7f20d3c24eca51598abaa26b837ff3. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/ESA012139106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a858d1ca0f202f1ba34fc00bfc77d926273d3ea738db620417d0c9d768da2b5. 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/FRX872364844.
Coluna Do Gibele (Homenagem A Seleção) [feat. Lil Magro]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d331cbef5abb21e5ba0bcb480e0854f748fc431e8a6be14c62774cad0470bc. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZZ972451721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9585397fbf3960d6abf538b10d58b1726459d208ca3633b085eb87e9741fb6ac. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/PT1R82500976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890ff91ad4dbe0a3ea19c66a5d3d40d2a36ebec21ebd93af78d889d28555fe67. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:41:39Z), 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/PT1R82500978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0364d9503340efa8d0c9a291ab1d76157be138b8815e97f4183dbded13fec9. 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/PT1R82500981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6f3d32cd477a22f72d62d4884fcd177f5efbdc7c53cebd80a4f94649fba232. 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/PT1R82500982.
Dois Meses Depois (Homenagem ao Mano Chaba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7afeb547be43cec28358555b7d570ba02b2669a52295b38f7e7a704dc5f3c7. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/PT1R82501991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f531347a2822511dcca5b7cb4f7b68f8157f5ff48b6320ee6ec4237c2e0f5e5. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/PT1R82501992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc5dd0f9feac245c0241c07595da225a93454fe654e19a2b6698633efed6aa8. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/PT1R82501993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c75b6b2a3c66cfc470f9e31e16fa072290c7c652cf48950a67a31bb2ad313ee. 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/PT1R82502010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd0ac17d6e2164d07288e95cd42f91cd370c5c1b136a1acaf51f63c4dd9d478. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:25:42Z), 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/PT1R82502011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08200cf00e2202af5f652f88ce67bd24c83301f489d08a7e992f5d1b4f2c799. 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/PT1R82502970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f223f5d176e667670d9da0b50a9b6fb8e09ce6473f3488ea8be9dca00aa868. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNJZ2565596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd27cc213daad46d04b7c7b290b5e3e75703a13a1cd9f33738f0cfd2e32cc778. 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/AUGBT2553622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ddfcb10bb4db7d1abc321e0f65590e2200af97df7dfa2f2e724a132530815e. 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/AUGBT2553623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c62105455bdda4c264e0efdbf6fe3b59dc4c123065aaf4dd88790d77bd2427. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/AUGBT2553625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d664d280871d76a25c14bfbb2d4a6a928505a24d95f9834551f1f5f8791097. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUGBT2553580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed9e328b6549768d7b68b075b5c16772507a09822568d52bea5d6b102d0405e. 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/QZMZ92335104.