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 0xc158cf03ea69a9144de895dcdfec8876387f198e12b6b56b832fe6ff241058d5. 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/8808a53b-6df6-4249-8674-0f9d5cf54cf7.json and https://artists.proofprofile.net/proofs/artist/8808a53b-6df6-4249-8674-0f9d5cf54cf7.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 0xb2f60a86e9beb170012810d3b98c500762fee61b8dabece652f08cd9f1150c02. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZHN41966722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ae8248aa7fbf5edede587e362b40baca54d68cc54da3444b4d1f349de6abdf. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:40:36Z), 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/QZFYX1909836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ad1672f682b0aac113ac234867f2f540badbf4ad9b9cd6b1b2042e205de3f0. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:25:32Z), 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/QZFYW1967908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d07f3ae1438b67cc4a69de33092bf51b094bac7152d8ee5db16f8d351de1eb5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6F2073793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc626ad44d43404738b956e1514a20f88c1179c8219e250c3dbecb7b7c53bba4. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZDA72138108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e4c31959f40156312f66a3df31d149858a6bb2cb9f3afaa0e42acf0d5592ab. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:08:34Z), 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/QZDA42142364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39d76f84bb5d97966b87763f729f7bf8dd644e8a52749787a33018c327ccbf2. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZFZ62252910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1c2ad07eac4f2a77bfbb6a98b23ab4203aec4ba45683a5971968512d6a1ca5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZMEQ2231778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c693224c2e1ac2a32e341f224e9b7e8d22fccfa1252675a245e36c285221636. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:36:37Z), 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/QZTB92247640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffd08e7f421a0bbea27a5fce7d13d69260a4ba0a3d265fa295712aa81b54ca6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZFZ32374268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d293222fbe85a8f5b66725b60bcf0f3dd2b8c3b51cd25acf4c1c990cf4ddbc3. 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/QZHN82386096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abcfa9db84dcfbaeb44e6ca0cd4e9790ba651860457a9c800cb060610249c83. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZNWY2371967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848f64804a11b452c9993f5f656dd16410d5c3a8917f32acad6e4a9b41656fda. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:49:37Z), 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/QZK6N2412006.
u play + i stay (Live at Spellbound Recorders)
Love Takes Time (Live at Spellbound Recorders)
Brown Eyed Girl (Live at Spellbound Recorders)
Live Studio Experience (Live at Spellbound Recorders)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d81019e7f3a67c9d6947dd829892fa42a898330f1e5d92885ffcf05d8404bc. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZES82566046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e57db48c90d68ec73742320be30c573f05ed322f57786b1e75bd7a72bfec48d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZZ792539005.