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 0xf1aea35dabf579285f12ee2a23ec1a9d01c7fe9e6cca049c531e26e308cdf098. 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/1ab71d5e-a10d-4834-acca-8b8b55e200a8.json and https://artists.proofprofile.net/proofs/artist/1ab71d5e-a10d-4834-acca-8b8b55e200a8.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 0xfb8980fe545babe50469ab2c8eadd16b67b6786f63c1ea2f02744b237e0c2df5. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/USA2B2055224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0410c6427c93c68586f92ed42d01c8ec01b2342e216f3b3f41cea17b97cd32f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USA2B2055225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae3da12040a9545424e1e923d1fc1b87d0cdb3f4e6121456a5216318f3aaf37. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USA2B2055227.
You Become the Mountain (Flying Mojito Bros Refrito)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3872643f366716fcdda28e6819983b72b6b976d612436ae32acc3839d344c84. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USA2B2100219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b08d66b168378d764a96331e56c45bd60668367c66f3e4af792080f1cff595. 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/USA2B2100217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90df8cdb8c3fa8efe7c0ba7d6a41b98002a657189217855d55e1e61190f9db79. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USA2B2307069.
Theme From Western Sky Music (Misha Panfilov Remix)
Theme From Western Sky Music - Misha Panfilov Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763d42bedd73b3096707e2101faddcd998806c5b927b14370dd1326cf0ce512f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USA2B2319915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ef2f367488752211d1f672c37eee54f3d7b97106cbfc8961b1e8844431f39a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA2B2401453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bfa367683c51c40c75d4263d40d0435a8c7ea7c14a339ff9bbe94606df3fd1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USA2B2402031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f53aa7e0112e3a8501649d0d0ff820e921d55a13ee9bf226f315a15c60c9aa0. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USA2B2402027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ef2f367488752211d1f672c37eee54f3d7b97106cbfc8961b1e8844431f39a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USA2B2401453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a41400c5b72e0c0023d682fa05fd89f2e92e8272ec0ce7cb987b7460a64ddc. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/USA2B2402032.
Future Folk: Friendly Faces; Different Spaces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ad7fcf3b50a494f1b7601e7b0d5dfafaa30c9d8c9bc4cfe8e0cdd7cc5a06a6. 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/GBMA22131154.