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 0x4bdb09254b0296731ad8215138f9d22252f3980c9c5cc82c8e31c64c3343e989. 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/e3742ee0-edc4-472c-b631-f9b2f2a0832a.json and https://artists.proofprofile.net/proofs/artist/e3742ee0-edc4-472c-b631-f9b2f2a0832a.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 0xd7ab5af478deb93d88f4f6e800eb1e0d736a589dc5e8008fe7f06a53aa9ce2bd. 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/QZW9N2239169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bfed3e342cadbe833fc7ce3cbc9816bcc3b3ae6f4b2b08b64b1195fd2deadf. 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/QZW9N2239170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489119f70352e5ec9a69e6dafd00f922d3be0491215d5b5f85158083a3b32804. 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/QZW9N2239173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dabcdd9c3939dca8bda274bd2f76501720b734bfcf8e488c114c0db3669ed8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZW9N2239177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f942c31a7e3bb3afece0fc50271e860bace7beabd3dc9a548a6b9625e5fd43. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZGLS2314973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7674d55750b0757b30c0a2a704859cd2c49d4d3dbebaa852ac0158cc5b738e40. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZGLS2314974.
Maga Bo Apresenta Samba de Coco Raízes de Arcoverde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6793a8a413d7e95ce9d38afb4986b645126f9dd2a2c35adeb30afb8c81eddf0d. 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/BGLV61729151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3876cef512e5325f352e922eb37ee47cbde6878fed9561a8b2eb52429529ea56. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/BGLV61729153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd97fc3d14ec880c4714209d1f86458e902a173c1700c200a73a10dca9721fa6. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:35:22Z), 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/BGLV61729158.
Maga Bo apresenta Coco Raizes de Arcoverde
Kafundó Apresenta Samba de Coco Raizes de Arcoverde REMIXED