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 0x23f0056efca3174d5b195095a4792c549ef92c39723a685cc8de008ab2893b8e. 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/e55ff29e-7469-4bc1-866a-01d0ab8f3213.json and https://artists.proofprofile.net/proofs/artist/e55ff29e-7469-4bc1-866a-01d0ab8f3213.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 0x0197887a526eaed3e982147117a93186027418da864ad2a82fff5aeaa9ee4373. 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/BRCID9500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e828e22d43aa768364a32bd8eebea4d83db1c13745a88f656483fec3723539. 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/BRCID9900327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc8b540da68349ebf4d2c4f2fe41430b54df2adbda8238c6b52ffe6781a44d0. 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/BRCID7500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10540735cfe7b8bd88c70922ff1770e8a29695036ec1276112b92ca73f02304. 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/BRCID9700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad3af658b5a8c7a2ba320b2a66d72958af2900be140cdb73ab1d354213de164. 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/BRCID9300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f66f2818d9f4392399ffed772cfa176e9ec2f58553cb50236dd4927cf38d9a3. 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/BRCID9100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6de77fff3647a9bc874645d605dcd3965ee287e6251f923fc01526aa9e7625. 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/BRCID9500071.
Para Animar o Seu "Reveillon" - Feliz Ano Novo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b84eff1144b2e6aa58362033597ccd71b2998a0bdef005ade3820630e4396a. 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/BRCID7900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67426ad7ea805845ab6ce23a4157ba7299878397e88a7632cf29a842b7536eb2. 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/BRCID7900055.
Água na Boca / Festa para um Rei Negro / O Campeão (Meu Time)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88de410c979ce198a000a8705131ee262bc502f7ca592c777d1e177d98382ac0. 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/BRCID7900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa215b65716b4b09e5984ae68a1376df3558422e8e846268f3fe665a49454ee5a. 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/BRCID7900049.
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
O Teu Cabelo Não Nega, Marcha do Remador ( Se a Canoa Não Virar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976444ede96b5586108a6b43237e3a4c56943721738e6819f95815db924d7183. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/BRCID7900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed76ad87bbc490ff38918ccd9c1fa5bc1bd29000ae42a557749e60a8fecb50b3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRCID7900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0e8a8bcde120fcb89dbe648d2426c891b70ec230e0449660d145d942bf7f52. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BRCID7900095.
Dancin Days / Não Existe Pecado ao Sul do Equador
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f571c5768ca0c7375c1aa5061be03a48b9e4ec3a574b892206ddaecab29e6c. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/BRCID7900052.
Piada de Salão / Pó de Mico / Vai Com Jeito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55f193ef8c65ca0302a74c722582c52af656bb980f7164f779130895acf2d42. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BRCID7900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14198bbbf42d344d72a26f3d4da0d47fcfab85912b77e8294ac1a9df02041a63. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/BRCID7900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8154702dbc0c79013e726e1e71f2a9571cd86fdb92fd13f11d75fc0402ed58a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BRCID7900058.