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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7187e8c298dbb86ddc5b15b6511b65b9daa9062cc35c2d2a56b360c67a6b42. 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/5a57b4cd-e942-4042-9a44-1b01981b3faa.json and https://artists.proofprofile.net/proofs/artist/5a57b4cd-e942-4042-9a44-1b01981b3faa.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d78943aebeb2d9840067d4b66b01b9ec760f48af108660f86feb6491f46692. 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/CAQOI2200179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593fc5e78ccdd0827d0cab791ae8c9a5ce1c9beaa253c3a4b56dc28baf79982b. 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/GB2LD2010242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20536ed2cc515f2b9d5d3140c669d84f4b8acd4926e30d55112feeff035c5f8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLF711804039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593fc5e78ccdd0827d0cab791ae8c9a5ce1c9beaa253c3a4b56dc28baf79982b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB2LD2010242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593fc5e78ccdd0827d0cab791ae8c9a5ce1c9beaa253c3a4b56dc28baf79982b. 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/GB2LD2010242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c98f1788b8079729f5048152516317f62b1289b278d07031a6f89af164616a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GX38U2139220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500770bc72ecd537cdc9954b917c572398335488b9aecd7f55a43b9422f759f4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM6P42153359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ea192b21417e6ee6cf147c0d6ebde6a151d8b65a6e0b11d2471279902d67b0. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/UKZGC2300744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd409e27a751a552ec403ca9bc381fa3db725f0661c338d58107ca1309af3cf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKZGC2203466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75c68f7ca740c268d64c59853ddce944feff0f0b9fccf6be3881ca2fc30a8d1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKZGC2300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9964a1f971d86d88a06104c8bfc442a1713c38fb8b216b640a7ee6ef9dd68288. 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/QZN882168683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c3686fc3ed58d3045f8a13b33ef6302cdfd1d210614bb94034b9dc4de59285. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLT2H2000312.
Love Could Be - Remastered (Glazed House Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6617112a5cb49ea01a350089b8d95b067eec166dce59a750696cc539f0682b. 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/QZTB32262527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ea192b21417e6ee6cf147c0d6ebde6a151d8b65a6e0b11d2471279902d67b0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UKZGC2300744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75c68f7ca740c268d64c59853ddce944feff0f0b9fccf6be3881ca2fc30a8d1. 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/UKZGC2300146.