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 0x84490326df58043e0a6a726585522d8cbfa02e65eb7740640627848a3f689140. 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/d98f14b2-3188-40f4-9342-fc874f62677b.json and https://artists.proofprofile.net/proofs/artist/d98f14b2-3188-40f4-9342-fc874f62677b.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 0xc37c6f3088f2460295e66290d2a967483f2b73395245e77df7969c8a63e24051. 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/UABM11801757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37c6f3088f2460295e66290d2a967483f2b73395245e77df7969c8a63e24051. 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/UABM11801757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877011585a418132a652275edeab82a32ddd13113b2d97375dc678367310d6e2. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/UABM12100523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e18dfa8ebe4f52ae9df1546c20d312c8e69155d0992d7b49d573e77ab6b3ae. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/UABM11900656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0035693cc61fea2de0dc02849bc7253efa9bacd3289d15f13c57ffbafd8a4c. 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/UABM12100256.
Малиновые Волосы - Midnight Daddies Summer Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48fec24af94056afa1aa00a4d65bb4efd23babdd8d87671692e9df49def3c38. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/UABM12100259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bfd408a4172149d4a3573343fc9af8ea9031aaec6f10ee4e8347c153efb3f2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/FRX202158716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67a5c2fe8a82c43dd01ecedf9838cf68b430dd57625331c9ebb57d26c025cc3. 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/FR96X2271215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948624ddbcbd8e2f85eb939892e32541aa0b0661876f64499cb6cb0ca413a747. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX452278887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f6caafb7b61c5257e6950c8cea592b84af13a14a3ef5b895bd748e64191382. 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/DGA072201468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08f9a79deb964a45f02df071b16bd2817d467c5bb2839c633af3feb6a6c20cf. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QM7282496993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a887a9cba0105bc57e4b5c67cc891c968923c924a70b414cc616613f70cd18. 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/QMFMF2412194.
Шлях до Перемоги - Original Soundtrack до благодійної кампанії «Шлях до Перемоги»
Шлях до Перемоги (Original Soundtrack до благодійної кампанії «Шлях до Перемоги»)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ffcd6bdeb4c8e6478cf219c1c39b6bdb5fc3416de1831b3602e975b51751bd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR59R2369716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bdf2ac7b64f6ef3cbc9e1ecacbd5114eb07969cd934ebbc2995d80ae6cdc88. 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/FR59R2298652.