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 0x0f7aa5f7a34f04f36b3cc50cac182f320a4c737561f6345a04d6b3bb01328f6d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9573224-e268-4993-82f3-49a8599a1045.json and https://artists.proofprofile.net/proofs/artist/b9573224-e268-4993-82f3-49a8599a1045.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cra$h (feat. Enchantée Julia & Jazzy Bazz)
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 0xf94f4713b6d83fdc5f9448cce09ed9c865d95c55f5f8aad45e7dd7d34f01a36f. 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/FRZ082200383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe519c39d8dafa15591227c55100e38b217ef8bfce5eb83ef73b8227c9879370c. 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/QMDA72373286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3332f3483be0f5418babb5ad6051e90b3ff08a467833d9a0057bc6413e5fb36. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:27:15Z), 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/FR9KZ2200320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0972828e5eb4d4d6951b9d295b6f267927f47cf9d602069d4ec8abaabf2783. 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/BEEO72200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94f4713b6d83fdc5f9448cce09ed9c865d95c55f5f8aad45e7dd7d34f01a36f. 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/FRZ082200383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b645b7f6bdcb14773cf5be5e264be45a81b240175716588a4af54e8e8d2b3d. 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/FR9W12010756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0721580bcdd5022ec478441cf8ab04a8ca640ceda56b26dedeb9ea890b6102ba. 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/FRIDO2010736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e907f921eb89be927cba9732a86cad80a321f1104bb4edd4a218cd42fe181. 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/FR9W12010760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e907f921eb89be927cba9732a86cad80a321f1104bb4edd4a218cd42fe181. 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/FR9W12010760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0721580bcdd5022ec478441cf8ab04a8ca640ceda56b26dedeb9ea890b6102ba. 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/FRIDO2010736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe519c39d8dafa15591227c55100e38b217ef8bfce5eb83ef73b8227c9879370c. 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/QMDA72373286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0972828e5eb4d4d6951b9d295b6f267927f47cf9d602069d4ec8abaabf2783. 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/BEEO72200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5920c8d9495b6faf1c61f41406b352d57a6f548bac163c46da6a0d47fbb1da3a. 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/FR9W12229248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab719492d70b0ed6cc55fb04133b935c0dc6e6b0493b79f26bd2877b2f28839. 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/FR9W12229617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1973a3f55fa94f869add9d623b0b45b5b11b7f19309a124ce0928c763ee1f8. 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/FR9W12031172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1973a3f55fa94f869add9d623b0b45b5b11b7f19309a124ce0928c763ee1f8. 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/FR9W12031172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bfa2d2d31f762393b70702352ea525f910bdae074e879fee5aecbe64ad1757. 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/FR9KZ2000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ca092a4c2e4c80d0c9e96cd687c9f73e9635367715182eb3d4ab217aaa5cb6. 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/FR9KZ2000050.