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 0xe573d85b37d1bc6192b12521aab7516271e1bd9f5dbc56762b3fb83a287b2557. 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/24032074-8f16-475f-a708-351843ac4303.json and https://artists.proofprofile.net/proofs/artist/24032074-8f16-475f-a708-351843ac4303.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 0x9104bf4a8a7e313e59078fb96664851a5d3a94b35cf4fa4039925a22c474241f. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:19:29Z), 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/NLL370500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729d25478f90c447063065002df1250f4c8f42d0f5a213379299d19fe43d02e4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLL370500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f1273069553bbb7221b148dbbd9c9302dd7a9ab69ab621ce3092fbb54dc404. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLL370800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952d6a8e22844f583119737bcb53c30f773baa961beba2c5aae0749d9df58caf. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NLL370500055.
Presents La Maison La Rue (Pure Lounge for Now People)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9083fe9c9b83c5536c63aef21fd1f1fc8422202c31e0040dfaeb346b11082ad. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NLL370500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2e241f2b0d9e0ec2df99b3599b47c934ea5fa14becae135f2efdaf8bd0b903. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLL371300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce92ca3f7e407e694eb28245f1832b80dd99ba4fa06762a9f7a427fe003f031. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/NLL371300022.
Desert Island Night (Monte's Daydream Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c7c1632144f8d4de6a4d23f6b787157e900a09aa6747e3ea60b930778e31d2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLL371300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d435cec288f0f9a9fffbf5f114be5505c70bebf46a00c2229cbacac77c1813a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLL371900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23743df8756d382a2f1c107570091ec789ae5c7c2b62c0470cea30b70830ca2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLL370500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc7b9ad29e8052e95b89f4f6790b91849edb4ba2e32bc5c2e6559a9690bac1c. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/NLL372000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4b6b74186b0eb6c660356788376c957bcebbfcf27b40528ee2b18c7c9f3bf5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLL372000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf710889f02f0997444f283c0685d102313d631d2705d14ed66f5a7d25d4248. 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/NLL372100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86812a34abb586792d1ac743f46eae44df1ebb24692680df36cdea839ced7dd2. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/NLL372400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a6e4f73ec67921ed7c2bc94795ce01d6cb0178334272e87c48bc734a35d936. 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/NLL372400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9184bc9f73cc24a3ad9ef88a2ec3d0d5b999804677349e240e0e31abcb0982. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NLL372400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86812a34abb586792d1ac743f46eae44df1ebb24692680df36cdea839ced7dd2. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/NLL372400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a6e4f73ec67921ed7c2bc94795ce01d6cb0178334272e87c48bc734a35d936. 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/NLL372400011.