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 0x863306092bc9172dce793843c5d10257aa6648a76583516d4ec4ffff7c099bc9. 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/568b0aa4-6a1b-491b-9124-a1ccca1e0bfe.json and https://artists.proofprofile.net/proofs/artist/568b0aa4-6a1b-491b-9124-a1ccca1e0bfe.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 0xfff0df6e756f185c55be724c467f63bcef126ac36436a2ef9a89f0818873787e. 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/QM6N22288125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ff1357a2917bfd39693a3a7184b7524d81164ce339e2cf051df5116f7e13dd. 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/BRVLM2100309.
Tutti-Frutti / Long Tall Sally / Hound Dog / Blue Suede Shoes / Love me Tender (feat. Erasmo Carlos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0907fefd966a7722a4044089ff4181f95117a1381917a2916782084c63725a26. 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/BRAPF0600046.
Ternura (Somehow it got to be tomorrow (today)) (feat. Wanderléa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52f37ac3f8d711e2ea264b7134c18d447d292b44707761a5941819f383d2dce. 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/BRAPF0600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe403f6ae39620f42d0ae424ca0c094fdaa18647b2a31877390720d1f91867379. 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/BRAPF0600048.
Coração de Estudante (feat. Milton Nascimento)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962832f59f1ea9267202963ed6ee97f84d0031b6db7f83c5b4d2f3fe690c704a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRAPF0600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da894a273c03e34e06295e0863e667b6628c13ede61ce781679877587c30558. 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/BRAPF0600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e31935230acb4e7d180f783a4955d99255835f4461e97c464b01b9aa694309. 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/BRAPF0600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a05a071aa1437e365b2f116de3d10b6b10b4d23de427fe9e834696b0686478e. 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/BRAPF0600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98381ab34a3acaef1bcffd1147810e7349f5b0b7cf872ee92285fb185a0a1fc4. 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/BRAPF0600053.
Se você quer (Si Piensas si quieres) (feat. Fafá De Belém)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f35e6413ef5d9c5fe12db28f0aac7b4e11ef147f2d068dcc5fab0daae2ea33. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRAPF0600054.
Rei do Gado (feat. Sérgio Reis & Almir Sater)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee136971daee2b617f2faa755d9db895e71aace5d7f2a79dbb21abf18f46f23d. 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/BRAPF0600055.
Se Eu Não Te Amasse Tanto Assim (feat. Ivete Sangalo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564eb1fbc197387a5bd0df56b7a3d4028f114c10602a6a9b12cc3b816661389e. 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/BRAPF0600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2a6ef84a9da75141855e984d642280710a09d79b930be3f01d33ff1adc7528. 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/BRAPF0600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0dbf07e47768c2019f3f573750085c325cdaee6bb1a36343ed701331e1a60e. 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/BRAPF0600058.
Bis - Jovem Guarda - Na Onda Do Ie-Ie-Ie Vol 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418ce39568b456d17dafe0939b052631914b93e70210b39f5eefd96143f91771. 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/BREMI6300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f3e571fd70c0a4894d75da22041d741a86586d40ea85e7f7522a8604d68b48. 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/BREMI6700262.