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 0xbcf09e97defed123b8ff6cdf824d8e8eeb2f26e73e285aa23ded91e084a953c8. 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/630a12ef-39a0-4835-92b0-0f22771de1e7.json and https://artists.proofprofile.net/proofs/artist/630a12ef-39a0-4835-92b0-0f22771de1e7.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 0x3a64898cd427d875e43c9a70e690c5ca13d1c92d7fcc6c3f5386a6b1e6230f9a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBGLW1800215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea39b15139f7cabf49d28c57abda79d1450b5484c045266eaaec7bff9d8cf23a. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/NZSG02000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0914e4135292584232fdff0a18d2df3ceae80e6f6cb0f44ae274d5b155fd0f3. 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/NZSG02000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f28167b2f41264ee332c753f224f19f8bf8af6af0f839355cbbfc89f933947. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:51:54Z), 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/NZSG02000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a0e59854bcfaa6037c92e7f1fbd2cde8d8b1c261e8f9e1c0f1fe3470af353a. 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/NZSG02100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47240db3d8ea85a6dc4bb0ab5da62b5d1784937e50048db78151d62038845c02. 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/NZSG02100022.
High Class, Pt. 1 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcb1206b0ec7a82d904f381b3624c1175eba2fbbc7a9c5f5369e52488ed1638. 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/NZSG02200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89fb4453e62f79f5693b9a1201c4af395fdabda10d2afd7f1af464808167745. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NZSG02200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1855b26c7fe3640e2292bc7db02b9fb4261a2c4a10dd06c81612dcf5b8d8635b. 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/NZSG02200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084a0d9972487c373f9b63f9385da2d034e19a9c8fb866300f6f42d840ace8e3. 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/NZSG02200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3b83099122059e6d93fd5c2088196d1c32f2eca7d81008cc1e6db97b29cb1e. 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/NZBG02300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ef7e35f547dd68876f33e4377edb127e178a309fc3d3e849cb9770a5e37dad. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:01:49Z), 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/NZBG02300002.