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 0xb20c1bdc51b99bd9895459c9ec8bacff463cc29f1735ff6ef147b87699fd39b7. 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/75aba530-f8e8-413e-8e00-1c8c96af0b3b.json and https://artists.proofprofile.net/proofs/artist/75aba530-f8e8-413e-8e00-1c8c96af0b3b.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 0xc8101a5996497fb596bad75ba2cb8096f17cc86ee652d22a4da1227f7d7f26bf. 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/MYMA11900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95652730b9e565fc2f302e95ec8b86dc56369dab75b643d0b0f59f4975f9eee. 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/MYMA11900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e365b42f09e1a45643f59f3b1a35f01a0c659c3115abb0d1860c0c2bf3cb63. 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/MYMA11900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f33d92bcb3248c9c8e7ac63cbfa5d7d14a6d6c7b607733c875d01efa85f1f45. 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/MYMA11900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d4ce363b0b971de28aeb16dd62352e63ee9ec0e471f52054d69658eda16581. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MYMA11900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d70a0d7db50c7781a9c3380e8786a39920c754f953e0b8ad2af82f5db5933b2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MYMA11900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3579c3abc48637bbea5cc313d40f3733c124404f8d085757535fe98606d87fe. 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/MYMA11900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5dbde692b11dbc9c0e7efbe58d14dc1faa84e79c257ea585112a36adc0e333. 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/MYMA12000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fa31fcb145df73602b8e6e9fafef9814cb332ea920fe6bf2daeeb55eefd764. 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/MYMA12000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309cab5a54c889bedd8397b4018c740f30ba7aa49766a44d5b30c39751235260. 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/MYMA12000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b31422b5fab9386f292fbdf8ede926b528ed44ef29e066658d750b4196c6e75. 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/MYMA12000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce10616766bbe42176f125861b452fd098832609ba4c048377d3b7c9420108e. 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/MYMA12000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d151c230d211f4612b44cbbf31c6bc6dc1ea54dc28af9ef927333353897febf. 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/MYMA12000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd826ba116bc376dde4021f265bd88fe96660ee2f81e6a7f53656f731d9913f56. 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/MYRQ11600074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ec96b720e302f5db55992c94f93da9cb170a426ad5f20207884b1aa6627366. 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/MYRQ11600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f992f14a92223ccfb91e2bf2607e80f8996cb44837a7d19255115524b8862c8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYRQ11600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0e573fd43103eac4e84f3b1993df3a8b1444ed866052e573b599e95ea40a98. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYRQ11600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aede33bd33b856c98e8b4978a3408f15e7516af4fbb3381be0099bdbfa021e3. 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/MYRQ11600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429357aa0b23265ffa82f3fd74073fa15a6b7168935f5cfb189be36741b26656. 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/MYMA12300202.