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 0x299fdcce0a76cfe36c1d6ca5950f3a0b8125b94054617e0e6aa5d0a948865092. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04bf3df8-e5b5-4733-ab51-2cbb7202cf22.json and https://artists.proofprofile.net/proofs/artist/04bf3df8-e5b5-4733-ab51-2cbb7202cf22.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 0x0beb26f233fb5109b73dac29cf07585e3aae0b5bbff9387c8a59af1b7e3fa6a0. 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/GBHLW2101170.
There Is A Place For You Among The Stars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5265c2eeb0c7718e959b6f944af579ead2025b39cbe5caf8bb5ebb6a60286ff7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBHLW2101171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf49c53af5e1f8819bc981bced094f259580cbaf514384f80eed879dcf6b49cf. 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/GBHLW2101173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7666a0dcb9b57b0dd0baf56b631fee229a8412228b05ef064c32a5227d09fd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBHLW2202738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7666a0dcb9b57b0dd0baf56b631fee229a8412228b05ef064c32a5227d09fd. 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/GBHLW2202738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0beb26f233fb5109b73dac29cf07585e3aae0b5bbff9387c8a59af1b7e3fa6a0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBHLW2101170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5265c2eeb0c7718e959b6f944af579ead2025b39cbe5caf8bb5ebb6a60286ff7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBHLW2101171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf49c53af5e1f8819bc981bced094f259580cbaf514384f80eed879dcf6b49cf. 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/GBHLW2101173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf49c53af5e1f8819bc981bced094f259580cbaf514384f80eed879dcf6b49cf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBHLW2101173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9993c5d9cec898fac4a58956c6d36899f675a6601cbe19f80a302c6b76ffc50. 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/GBHLW2302608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b973b468faf792034611d75712b1691d5ff9beb23457b43ffb84c8446f552ab. 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/GBHLW1803954.