1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xebc9dea0b434e19297c1a4c50b20c5a404b5b5ed4e63af0eed4f778ba60ffe2b. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a44e8732-c956-4e2a-9006-d4c242e7cc22.json and https://artists.proofprofile.net/proofs/artist/a44e8732-c956-4e2a-9006-d4c242e7cc22.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 → block OTSBitcoinBlock must exist at that height 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 0xd66c4cb2a102ff35fb9b2f806ca755f783a21c1e7b380f17c0af401e9c679f6e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNWR2380003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bab90fe325c7aa007b25d36674fe68d1ebee0c814f5363550c6b910458b41c7. 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/QZNWR2380005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be677dcd1227f1ed8f08cbac9fa32cf7661eddbe095fa7bbcbd5369197a768c. 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/QZNWR2380006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb37717654a53e5273cc715d0871ac3699d790fa02598e8d389100027923bc1. 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/QZNWR2380008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74a3e0d896a62482dea5ad2b52f7ec3022d8b611d4e63e6520c8aadd681f55a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZNWR2380009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17ac140bd782fa15c9646d071b8ac845ac0af80b2ee9fdeeecc25f29940d824. 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/QM6MZ2217133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c11ef115ee99d532e2dadba6c19d88c7f14c0ec5e350bc75234cae4b3fc12ec. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM6MZ2217134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b155cb78f4bd5a832175f18d63bb1cd50675cdd2005adccdba00b4afba65a9c. 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/QM6MZ2217136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46df29a6396f7cdf655653a3563960172c44c8c12ae3310d136f3b1a3564f112. 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/QM6MZ2217137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7eecc7e82684dc662121a8d24a04f19c55643a538fddbffd25fa2a3c29bf2d2. 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/QM6MZ2217139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb703714056a2847fecabed23f9013d29f950a5684ac246b79133489d7f93a84. 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/QM6MZ2217141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe883baab30cb4139c144c548f0482ea0fed83bb4e04b96c977ecf2bf5edabd92. 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/QM6MZ2217150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f2005a18fcfba14d04507356a4a6c3bf7c3b7ffe24185441eacf3e5dc1e911. 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/QM6MZ2217153.
Sleazy's Cut (feat. Johnny La Rock & Mush Mouth)