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 0x012b50cdc42beddc429c7cf9b50a8ec0ed29d955b20b00e03baf5857801b871d. 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/a1837f22-8013-40b8-8f40-1e2f1ce9bdf6.json and https://artists.proofprofile.net/proofs/artist/a1837f22-8013-40b8-8f40-1e2f1ce9bdf6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chuap Chuap (feat. Ceky Viciny, Gino & Muñeco)
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 0x721627cd0c230ffcb0b824eb8ec75eb52b5541d31bea73db8778261e38430911. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZ53S1700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9007d6863c56432fff5f811091ad9f90333f416a153515e02582d6b53b9ce0. 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/QZKDT2100659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd632870129f4803cea2cd87171a2a605435eb5bf098f327f9008dce354c0282a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ53S1700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31a6c29f81eaac067d043bc25a67b538cc5b0911c2829b2a6fa3d1718c239c0. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/NLRD51967617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daaef275f60198175956ca4fe78b316074bfe321e23c3eb5f155e1960f69890. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZKDT2200196.
Llegale A Lo Codigo (Latin Tech) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dec779dab6b50b3a35a309754e82246a304c6cd3681108636bdad3cebb66594. 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/ES61A2426741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe124dcda50f810d18a926404fc31a91be962b13f1058cc402599ec17956630. 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/ES61A2428321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2833ba4b71a35baabee8bba07c1fa54fa50ac7f3fb2ad15829c767e8706dcf0. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/ES61A2427891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b1e31afd3174882dec82b6fd1ed5f4460145b74b7af6bac13c93cf26d601e9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES61A2428241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe124dcda50f810d18a926404fc31a91be962b13f1058cc402599ec17956630. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES61A2428321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198fd6a25acba4bf1494305c6a3404565fa07c978da8845e9c8fe77882e684b9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAFO2149470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09b78ca21861b76c101040ea76096b5cd01619a98691db948d18ff9d0749b2a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA622302793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686aa602ecc693bf6d67542320143684c3a980ab692c68971794c797973ace7b. 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/DEA622300107.
Charts 2024 - Radio Top Hits Deutschland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09b78ca21861b76c101040ea76096b5cd01619a98691db948d18ff9d0749b2a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA622302793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fcce5232c18e8a8050d8ec9b24fb25bbe7ef8f16eb090b208a0045a6b89acd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAHS2389507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501eea47018b1f41953c2f3dd46c2fb824777b75fe5833b55f923068c525b4dd. 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/QZ5FN2309890.