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 0x8c4bd95e099446a37898ff8f8cad152eba25680f7832b73da4a36a312003f5ba. 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/2a86f10a-f9c2-45fe-bb00-f3d463be502a.json and https://artists.proofprofile.net/proofs/artist/2a86f10a-f9c2-45fe-bb00-f3d463be502a.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 0xb1b0b2af77552715776fdf761da5fb5ce68a4497213ebb4b8f67be16f07a7018. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/DKF8D2300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8647268313f0dcaab827b7afe498e6a996c9d12dda01862441bf6cfb58b3b7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:03:09Z), 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/DKF8D2300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb4ca2ac25ef420864d95844ea921987fc1db28dd644d5d10866833e52315ec. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/DKF8D2300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77dd9a4cffdf283bc74d5b8092b8088156bbaddb2f6227320ee1009fcfe33e1d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:30:38Z), 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/DKF8D2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39b793d4457e7260d035d42ae729a3874ad4d85ecc50596196b6bbb6b932c3b. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/DKF8D2300104.
Blackbirds sing (Stefan Storm Remix Radio Edit)
Blackbirds sing - Stefan Storm Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63cc0ae9e1eaf0fdf7d44252718031a70772a8b4b7d0c3debe683a70b912bd7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:45:58Z), 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/DKF8D2400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7d15396017a4f718658be3d1023d1f74da5ee72f1e2caecfaac2fafec3afc6. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/DKF8D2300102.