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 0xb9d9cd2b072f5b64c43fa9215951ca0e061d5e224e13cb958795ace66cc743bb. 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/0c0847ca-8743-47b6-a647-0992d9f8a3d9.json and https://artists.proofprofile.net/proofs/artist/0c0847ca-8743-47b6-a647-0992d9f8a3d9.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 0x0ac0c987e765c49f25fe95a31e777082a0309734d95978b2dff1a306f3606888. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/BEQ049600018.
Waterfall (uit Liefde Voor Muziek) [Live]
Waterfall (uit Liefde Voor Muziek) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77951f3db8abdbfb68f4b6d4b4044ac98c84c3af381c1034b18ca54b9ed13e3. 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/BEG332300007.
Wat een wonder(uit Liefde Voor Muziek) [Live]
Wat een wonder ( uit Liefde voor Muziek) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81a1867955303db80223a4c18404adef9314ccec8ad98bc9868ad5c4bef935c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/BEG332300014.
1 op een miljoen (uit Liefde Voor Muziek) [Live]
1 op een miljoen (uit Liefde voor Muziek) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29754125c3532329796e57c8d4c64254371797312f8185d5470ddfa65d9222c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BEG332300021.
Ik had het moeten weten (uit Liefde Voor Muziek) [Live]
Ik had het moeten weten (uit Liefde Voor Muziek) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebc201aaeb78f06731a0e059ee522e5b024fbb53042ad6373f4e9b418b4eeb3. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BEG332300042.
I can't stand the rain (uit Liefde Voor Muziek) [Live]
I can't stand the rain (uit Liefde Voor Muziek) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12755cc1e9e9c7191efc9bebe6948912f1e10edf968f481a1b830a45db3dfe0d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BEG332300049.
Hart op reis (uit Liefde Voor Muziek) [Live]
Hart op reis (uit Liefde Voor Muziek) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dca6af7a90500bbd13367024821511bd08f371bd749407f36b8c7ba152580ec. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/BEG332300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29754125c3532329796e57c8d4c64254371797312f8185d5470ddfa65d9222c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BEG332300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cdf85c3a70fc420ec0641b499c2976a7c37bdcd3c00dbb7d808c1aaa09ee4f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BEG332300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4372ee1f4d1c76ae693fd26749a0d90099b67aa3d6ad22dd8a162c7400090520. 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/BEAL42465001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0b6f31f6c4e562ccaa9d0f0fd532786bae27c0465869ddf1dcf02705bcccd6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BEAL42465002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c1a9c916d4f4c1198d66fc02467488bb9b2be70dcaafd385d64fcf91f29ed8. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/BEAL42465005.
Niemand Swingt Zoals Een Echte Kat - Van "De Aristokatten"/Originele Nederlandstalige Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e29f5fef9cbebc66e1cbbaa226ff0c2bb77b93a64270db1173ae49852f264bd. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USWD11468859.