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 0x91bcdcf23d60326cb97f2c09b5d1d43d4010eb8d71dc89a66ea8efc5a0d228c3. 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/d12414a1-3e68-43c3-8186-f8926ee84a31.json and https://artists.proofprofile.net/proofs/artist/d12414a1-3e68-43c3-8186-f8926ee84a31.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 0x9cad5120d65053c2c38565e377876dd72cfb52e30e744d2f02f2e69353e25bd0. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/UK6821841335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0191e2aae08aae9b729e8f50c7b89471e5cac747e9c646be804ef2e6d27f0b. 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/UK6821841364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81be6245065bc4fe2daf477710a8929c560d1b8f0cec323d433c58ba3aa6b15e. 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/UK6821841213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d16b9c428a6b7109bf13411aff54b5fac51bb0a0b977f9298a23efabdb70cc4. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/UK6821849313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae368291b251a4a1fa4ee9d98e394b170759e7b9a91690b3235bdb255bef8b2a. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/UK6821856040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85943047eddc64fb09b7eb8687613c316cd1af2fa5a4e9c5f56d256638e6b640. 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/UK6821855860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71e5db114daf712f8bc8996044552464a84ab7a970c311f6500202165fe39ba. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/UK6821855586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e50db3505c28d7740ca52ac795193097ee05bf27806f20fdb2f0de2d7bcef8. 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/UK6821856137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c4c6cfd52323b71fb05c39a275e60f409083ba6f231a922f450998c11c8bcc. 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/UK6821852173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe353d521c3e23e0d3bb3c86e06de1c3a88114ecf4c52c3b48713d097f64dfd18. 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/UK6821854807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23921cf095349a5a3e565d638d0335d2e6b7fd7a2f41d2dfbd4e7b7c524d4a5. 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/UK6821845415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0051d86fab56059ffd12c58827b7c3d531a0596a3075c2ddd8f7ca901ab88b7. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/UK6821845416.
Ambient Nature Melodies | Mindful Living Music | Spa Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e14b768f0676e2f31621e58a072aea0faa5dfc91743f2733848279df3348a7. 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/UK6821737655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afe1a00275a3188e97e0abeedbb76e82b46848d4c6eb41ab11431e6cf02fcd5. 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/UK6821737649.
50 Powerful Sounds for Meditation & Yoga Experience
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902d66e225f6c08c31599dd57bc275473ddd162d7b8b563ba0582869186bb32c. 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/UK6821737647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286f4e64ddc0774217ed43cdb34f2c4937b1a8337b75ffe818c5ed54b93d958a. 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/UK6821737618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56c15aadb457bddc5510ee11275cb1de08c0dff16806441c587dd82c6f5d6b0. 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/UK6821738665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7b106e22e1c59baf5674e0669f966fbd540f18aee276dddb7a4acc20e0543d. 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/UK6821728954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d3e16b461f0b84a4238c1fe7f9282c1471b406b4c27453ee272df77c2904da. 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/UK6821848117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c534b7210f54695a9c38a0253eb898cbc25b24f6444af9cb6cd4ad41d8e0d65. 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/UK6821737627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287064d8686e1f03040fa8f4603bda18582d545a15048191779553d41f636096. 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/UK6821737604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b5f491e9a8144b84058ffbc6cdfecfbbe77418851fb8aeff4b88f916953e36. 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/UK6821738720.