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 0x7a132b1f0a0daeeb07fd42002b4f8f7703b013ddc5baa519f3f4cf6e37964bf0. 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/6c776759-786b-4414-98b1-c42dc332cbd2.json and https://artists.proofprofile.net/proofs/artist/6c776759-786b-4414-98b1-c42dc332cbd2.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 0xa55352a0ecd99f4cf2056d310c85a6fa3280a6293e4939ced1aa99ae3799c63b. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/US23A1551947.
I'm gonna die with this frown on my face
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04f472e322de8070bf3e1afa135eb18ecb4a9b2f831917c6ff66793aeaf1026. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:26:53Z), 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/AUBEC2202963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd431ae0004adc458c8a5d2076157038a09a403031f4b4f583705c632514ade. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/AUBEC2202964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5416bc37037c8dfb1dab2cb6776c0bc3c8a94128ecb71a3475b4f25905b836e1. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/AUBEC2202965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d9118c5750f190e8ba7ebec8a6826a8ea6493d8368752df94f195082814aac. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/AUBEC2202966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15623db5fdcb7446468c9f18b5044e9b21e5481276c7128c3263334fde3d7a36. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/AUBEC2202967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e822550a3ba2637146046d6e2931fdc1a8a78b3733df2287ede23df343f469. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:47:50Z), 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/AUBEC2202968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7376e57a670d5b0ebfd96b633c61189b09d30a80adc0bacf2366001c75b06a62. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AUBEC2202969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62e05ced7cd61ae965f1e056f969bbeb55628afc7ae3490ee13871d62b39fa8. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:02:33Z), 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/GBKPL2285210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e53ddbaf2953dd83cf2c2a8db4d70823c4e0e58c9fe1a8bba0c9ee4f0aa1226. 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/AUBEC2521562.