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 0xfad421b1b8753dd958091e89163037e9916d12bca06c85a17a9bce5c02cad004. 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/a2ed8f19-7742-4b7f-9763-481bf5bcefcd.json and https://artists.proofprofile.net/proofs/artist/a2ed8f19-7742-4b7f-9763-481bf5bcefcd.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 0x1592d197d91e6c95b12ed9db91d8d458ed9ac9937efb369bdc57a35f2c08da31. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USHM82347941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69fd0e94d3f65d7972d985d07b709c245fb4b28caf6bfd8a4fdedea45b1aa9b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USHM82347942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade2a4511d9338076e2a60f9a1e267f51d1ced80cda87492fac4975146b445c4. 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/USHM82347943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdd673aada7490f2fd48e7efe36e839b240d3b37d018f5cb5be6ce94c68f545. 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/USHM82347944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595fcc5854a1f8069d85aa2aa49a1c11deb17b9d46b1c0528d3284dc1c344dc1. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/USHM82347951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bba834eee018960f1e4925b1f4384a2168033747b460240c9d0129748a07bad. 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/USHM82347952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d9400d74e0f6af52904a36a942eb2e524d46b0c708abc05724307602a6cb21. 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/USHM82347953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374c5c24cc96afd18807f3f1930c9a42ee02524267fe2dc9ce4d7cfb4ba7b376. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USHM82347956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1b259ee997762ad40eec0e6b91aeeedcbf0bc47d5d0e01b8c0dff8dcec4472. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/USHM82347957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bc9c81a24b8ad725fa3497a1ec4037693704411dc759d5bc3da1036b8b35a9. 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/USHM82347970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dde8d2dca3139577b43ebc0dd1a30ba152500eae215310c41d903937cc9b722. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USHM82347973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006e957ae09feaa71490ff9059657da1ac630611bbb07dbee6ef858e6f980c89. 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/USHM82347976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aca81b3178c3e794ca6ffe93a463398c488bbbd52281cf70ccc802d9fb79301. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USHM82347979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4969d270e23ee2aac232c514d4e2d8856a208032553ff67c64e070d97e17c74. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/USHM82347996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd9d7c62ca9203d101732f4c65c6ac57d1d9c6cb27003ea8a4f5632ceb2305a. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/USHM82347999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2682cb49dcdd0804b4accce67a1dc34c260bec20be37fb5a73be5dda9045c2d5. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USHM82348002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd109ea80e406a87811b24e81d88de667089990b8991a5cda1f10cd0b43720671. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USHM82348003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef864ffdbcdab3d985f836e3c45d8c2ebb0d5820a54eae52de21ede0a85f0d3. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USHM82348011.
O Melhor do Funknejo e Arrocha Para Você!
O Melhor do Funknejo e Arrocha para Você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702a701102cec67ed6870cd0dcdedd7a1e7db9faa65e6621d3f603f53f0eb0d9. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/USMH92382170.
Nossa Felicidade É Fazer Você Feliz, Vol. 4
O Melhor do Funknejo e Arrocha pra Você! (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dbc8d3f04bbd82f6c254aeb031ce2a7cbccf99eb59ba64e0e40dd8efc9a276. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USMH92382122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5229f34b1890fc263373b3b1e533bf726756b38cdbc2adaf92666c2b2ef4d835. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USX9P2308069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50806ba10adfde0615fa66f4bbb8eb11b44f9ae76d1e84ff8eb46200902a5db. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USHM22471467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc63f991a119b772601dd1a053255a4f2c02f9741215fc2d57d671bb2c241bc. 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/USHM82540766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5a2def6ccf42ecd6bb60c547e5893f14af0ee87594b1e73f632595bca42b31. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZW9L2441835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0966195ec1e51a9799c1eb2eaafe4fe53282ab1bdffcec0a36baafb5178d3f1. 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/BCNDT2500001.