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 0x4a3a5b73f3d099a44ed5ea0a88c47c4745b6a8cc12e31648b8090c34cdadfd89. 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/609fa5ef-fac2-4b9a-bf7f-cbd3bfa07d9b.json and https://artists.proofprofile.net/proofs/artist/609fa5ef-fac2-4b9a-bf7f-cbd3bfa07d9b.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 0xa739d29ed8f5c64f8b478e41ee3bbc266ecb9d2e8b3e9097e2d6e2e02c6ceb76. 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/MX1881800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf208b8a7b48ea054e523853e0ea2571d1a5eec676a849d730208f337d271e8e7. 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/GBLFP2180827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be747557ef2f5f0c488bec1741b610fcf4a2df6a4f048103a22b9c4499e4781. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBLFP2087666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e15352df557ad9ab364e3ac05f392ec6d564a6384f148a35f11252b348a472. 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/GBMA22191572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0707a69c895da9502a6c12142bf2490b43cce077ef41c68ed700cc6d0f9df048. 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/GX3Q92110565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6f62dcbf64d3cc205c691531d2ecdad1d919d1ae4e252b76bbd0cdd8a762eb. 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/UKXN21906003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24b6cd793fb4fc5bf9605e06778a02c8f34ac241129ca9246f44b6fdfbd9f94. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBLFP2232989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e834794dc3ef0c9d5bcaa9817f8718b6330e4a5e8ff04d3f9c78633258746d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLFP2082165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96371032a2f81084d97d522752e3f6f91870dcf4cf6520ce98cf3460be2d5980. 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/GX3Q92141392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe888437bb76c9dec4ef7d10f86a492a3d98287c24077ab787de539e255b133f3. 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/UKXN22222181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6735d1687ff1f90ee9f6e44c1866b04c1d248b400d4f1254d2144b4842a601d. 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/QZ5AB1710620.
Sonidero Compay - Sheeqo Beat 3BallMTY Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437312f1fbdcd0079479de3e48f58200298638395e70660372bd67571f299299. 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/USZ4V1000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060dcac931f7e969199a2ce751ae352a7d6e4e1796a81d04c137633bcbfebbb8. 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/QM6DC1996726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19c792b4cf2e5d30f8879c2e026c2ba5ec1aeeb4f858bf1cc2e1662c8afacc7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZWFL2407414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6903ed2be925ad4c977c09d000e0ff47b64917c317601505956d2bc03b68fe. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZMER2273686.