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 0xc44f4030a9740779e5042b5510a8cfd23fd78c252eeb9b9c658003400b79fb57. 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/41f26444-5ba9-45b3-a302-d4fc0b553f96.json and https://artists.proofprofile.net/proofs/artist/41f26444-5ba9-45b3-a302-d4fc0b553f96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brain Waves, Vol. 1: Alpha, Delta, Theta Waves Music for Relax, Sleep and Brain Power (Long Versions)
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 0x36fae8e84f2c7e3d091ee2707bba8d1d400214ba762ca00ca1c5b4a3a07ef496. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCACL1636476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edb43fd9794bf4f617df100a9484c039dd15a96147ab5717eef8d9b65e63d42. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/TCACL1636493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e3a8d62ae36d0c1c31e8bdd761385db61c530b0ce0bd375c4885570af6f4b4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCACL1636497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0e02c025bd3b1732678ca75ce98288e3a099c9dd6922252c3a781efaf09585. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCACL1637200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06a74cbb2d5ee705f15eae999f06c6f3a277b6a2d70a8ff5422086472976869. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCACL1637202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9072d9b5e7e57d5dd34fb63810d58e719645352fc48a666756357ce9b39e93b1. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/TCADO1825215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867dbdddac25be207cf72d279356e0549fabf517c0e75ab64f12de6a3967e397. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCADO1825219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cd1610d1e287a012e5e3fd16d141e4d4c1658d3be42419c07d6f41ad1ca957. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/TCADO1825223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7c4cb48e95756699c2ae33657b52f68ab51804e1a337b7ab2431c1582e0227. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:51:42Z), 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/TCAFX2108762.