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 0x29b100afde9b08efba0af10afb5a02c3c62206158e92c6311fac52b8c466f1c6. 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/8fb980cc-9090-44a4-a5a0-17df587a36a9.json and https://artists.proofprofile.net/proofs/artist/8fb980cc-9090-44a4-a5a0-17df587a36a9.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 0x40c7ce881446e370eab624cad01448eeae3a8016ef3429eae12a6ab166948b88. 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/USHM22409038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36f0befd4b63fefdc7dfb045d0ee6940e4718d7c144b4f086fbeeca432a3338. 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/USHM92262048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820d544f7892e9476c89c597a3bcdfe51891896e0cd2ba787077c49cba928fdc. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T16:27:46Z), 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/USHM22296981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1054e990b90ab0849d880d00c79e21eea651a94e0461a44c009fc9d30801cec2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUGBT2312511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8481af0fe5d36c70783255680493de349bfbbe77b970275fba79a9fef58c0c81. 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/AUMEV2324016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7e944939a5c7072d9f9ae5053a6cac7e98e7c3f0de2799cea6d03c9d23e787. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUMEV2382011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf28cb1870fe5a24147fcf0c3b2ceb01266ffd359f75b5893c513d2d6ba3f033. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USCGH2496528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539a1f3b44bf81b9583bec6c10acc738469f804306cd4d0666a2ec5a9b4c12c9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH2271656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf326787de6f5131a23eca44dfe2baa5e7c069e9398e4a430c13376d79a737c98. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCGJ2199787.
Jesus Speak (Help My Unbelief) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acbea856c10300b83c4722ced8daddee9ab1548737ba47e41cf649f1ffb9c29. 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/AUMEV2383875.
Already Blessed - Remix Instrumentals (Vol 1)
Take up Your Cross (Deluxe Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3893952f673f8eb5ea98b0d7341942210f47c0ef956b01b7e4fc474a84c15893. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM22132065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba34fbd2757722602d88a02afad755b2852dc490d443fab5e66c1e674f6cb2d. 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/USL4R2401108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe632fb7f7b4d8aec7824cb0f344356f03ebcfe084cffe495cc9fb41de549a36f. 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/AUMEV2344749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1054e990b90ab0849d880d00c79e21eea651a94e0461a44c009fc9d30801cec2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUGBT2312511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe632fb7f7b4d8aec7824cb0f344356f03ebcfe084cffe495cc9fb41de549a36f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUMEV2344749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36f0befd4b63fefdc7dfb045d0ee6940e4718d7c144b4f086fbeeca432a3338. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USHM92262048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820d544f7892e9476c89c597a3bcdfe51891896e0cd2ba787077c49cba928fdc. 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/USHM22296981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf326787de6f5131a23eca44dfe2baa5e7c069e9398e4a430c13376d79a737c98. 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/USCGJ2199787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3893952f673f8eb5ea98b0d7341942210f47c0ef956b01b7e4fc474a84c15893. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USHM22132065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf326787de6f5131a23eca44dfe2baa5e7c069e9398e4a430c13376d79a737c98. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USCGJ2199787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cbca04c50246e1c0434a3655709ef158bdec47d57a54a11805f3a8e68b861a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USL4R2053705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc355b9e7cce2a41ff61aef9e9fc61f0f766ffd3c18e0f1063507215cb83b310. 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/USL4R2053707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff977c21b98e4ccbf2ada7bcf26b4300e2e17c1c3e96d2f0392738193f68ef66. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA5W2300799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683b6631914321d3e0006bdf75beb1464c1e8331b23e8714f144f7aa8df5ab64. 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/USA5W2300804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf723e0d5cfc6758d04cc68ec178a72d2623c40706284aefc10a9db57d42a839. 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/USA5W2300806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae01353901c5576b96992dc59a73482661494f43c089d476399e26f5fb3756d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA5W2300809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43d3c6069b0c162add43260801d4309c03ba4ba9ddf98b4d357a3dadbb2803e. 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/USA5W2300811.