1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x194910f95aff17f72b4ac3b03a8d3871edbe8175e89b267667e97c15f1a21f8c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e404e27f-fb45-4a25-9f36-3393f8d92249.json and https://artists.proofprofile.net/proofs/artist/e404e27f-fb45-4a25-9f36-3393f8d92249.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 → block OTSBitcoinBlock must exist at that height 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 0xd67ac13770aa3f71ca851b99ac68b73fd9e7c488706370aef9d30a57feea5059. 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/UKACT2132205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e70a0357e18848678f880fa14f61f50d8d81307bfbfd8c09d38ae82acb4ca4. 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/GBKQU2057015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd90a61dfb554678ca9696bb2646bc90a22d4b5fa8e24e4f312ef8ad7c9e895. 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/GBKQU2057016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ac22cf2fd6e4f1d6702a6d73d2cf7433f750039ee04cb22fe14fa051b7e8ce. 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/GBKQU2057019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb489984e9b968f9ad30f7bf785c02eeab63b26512fc7c205a29e9bc249a14058. 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/GBKQU2057021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e382eac07a652f05d03b0fe421cd29e85590ea93bc69b914098d14d4b24b80. 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/GBWUL2141770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92987e6086ca7e833851eb1c0ec779a5bd07537e09d30633f7aee0b6b8ce3989. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBWUL2144897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809b7171a2a998975ceed6fff5df5a6b23c1743a60dc5952bf5ec15f8f52654e. 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/GBWUL2045983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c563419260b3d38f02bd3ef6c25a3b3a1078ec1b35f7db2007140c98993883c. 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/GBWUL2045986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dc62cc5f46ddb02dc9343ed3d88c27c982a7dc66f9f1e5d359644f2c582eef. 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/ES71G2235760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2a0b9099a196df49c9f4027917dd01286bb582aba31a624f67009a0786d19e. 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/ES71G2235762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14b7e6913717d9ab4cf29bf6a45e4b4269bc31d0da0f9e20e221747b44fbb0f. 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/ES71G2235761.
Kaputt.wav, Vol. II: Reserva / Voz Terra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e15bba9af5d43f749e54f3331ebb41b30b2a77c9946479fa53cbe50a3f79e2. 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/USCGH2111827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804b19d6e6bb95b0a110465b11aa7b9a4a364327e6c5ff6af34ec0eb11a33ddd. 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/GBLV62125047.
Nothing But... Deep House Essentials, Vol. 13
How Much Can You Give Away - Juan Soto Remix