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 0xc786a5ca419395799eedb78eefda92c4c765b2712d0ab323326efc5d3754eb21. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bc1b48d-1858-4579-8d2a-f24966566c93.json and https://artists.proofprofile.net/proofs/artist/1bc1b48d-1858-4579-8d2a-f24966566c93.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 0xb0a22b4dddbd7f57211c43c79d752c4b77d77bfdf69c1683d5d3c3458b106c81. 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/BX0BA1700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed3d2a835991522307a1279bd50eb1f6ae239f11b572bbb581fb0fee5ff6f47. 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/BRUM72300588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211bac2ff988a794872d1e6d2dccb45289ca2f69727fe7f850065af1259d9708. 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/NLD682302953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734886362e7127f4bc1ba21526f342aa3f6bc15a0a3e16162039241bd5d33c89. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/NLXV51300842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a89ef4670e040f4687a23506302775395a5ab97c3b004deb770d833e890c04b. 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/BX0BA2300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e99a4839fd3dd1e7cc4d435d0f11e1951251442b3d21c98f1a0d61c44452a96. 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/QZES72376018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61f3f50a548840ad660332f083e21adb091b30930fd9cdbd234758bc749264e. 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/QZS632293261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd36e3f22969f21baa060c4c7eb78abb59b191d719c05eb208608285f74f57e. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBRKQ2295236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd94c794217d2c826556cffac591481e980e5374d97ac05679f5cbd01ce7ec2. 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/QZNJY2151964.
KRIEGER (BR), Voltech - Feel Like This (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f17cacd254d994634468c91a568a9993134d643bf04f1ace63aa30a9346c1e8. 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/QM42K1732358.