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 0x10d4ad700960f0d2476c26552b8fd74f24a9162eea73d850b24686e2040cc923. 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/2a54e1a9-ed0a-4da3-9cae-1325a9d0cd11.json and https://artists.proofprofile.net/proofs/artist/2a54e1a9-ed0a-4da3-9cae-1325a9d0cd11.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 0x189c69119841850e23ee0892aba2da4ea45d952434177bef05ed19f39f6825f3. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/DKY302100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3def088d094f053fb711eeaf67ad8d71f7164f4bb6c3137f155d1b82f221bb2. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:22:55Z), 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/DKY302100502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ddba4749af26c6f96a0ae7ab8df6457948bb9fb8a29dd8e3e4077e6ec726de. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DKY302100503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb4ac11ed2bd556cc68a68843d5b1cc32c1646ce0929ecc83614107d63463b0. 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/DKY302100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86341e95673b78dcc795c6ab13dc584f9f4e8027d3725295538be5ac6dfb3ec8. 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/DKY302100506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145d5e14e8edc672367110c7edefae8cbeb26543aeb080b5f2677f723c8132dc. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:36:12Z), 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/DKY302100507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1a9d7a8adfef7e8c3dae4d90f1dc2506991647f6172ba38ca71f6ab515e917. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/DKADG2201002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75ae0533b45982b12bc9a0992b57e84adb302b55571a174c9d00e2ef3425913. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/DKADG2201006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e10ab9528ac5bd4a4e5ab807e6466b3e650a491cb3972116dde96c8cfa93f9. 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/DKADG2201009.
You And Me (feat. Vinnie Who) [Vinnie Who Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3cb49d8a9062745502254e9ab4167c6aaed1a81ee301e4c85314de72e0bf78. 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/DKADG2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a32fee223970ede1e525ee9efe18a5a3a558bcb54ce005d2a05cacdef61c935. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/DKADG2400754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26399c40d31ffe946577d8c1a816e293aaed7a3e09e4ce6f0b2b8918fc1e699. 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/DKADG2400755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947336093c888a92af2cb4a34e1176369abf728ad759bbf9443e784976a587ef. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/DKADG2400757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbaa5d07c24bd3dfee39c7a8f16ad8ffd1df8322646ec20396914a7b5fc25ee. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/DKADG2400756.