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 0xe83f493e35588e46824c064eef994f8e90801c36a3eea84ec1a23cc05953ea21. 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/7f085812-88c8-492c-af3c-179305a98045.json and https://artists.proofprofile.net/proofs/artist/7f085812-88c8-492c-af3c-179305a98045.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 0x9cab71c1ae3443fe0a3e0e0cafe8b2d1dcad64818d2143d8d570714a2f2592bb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFYW2090570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7300a5ede9d6e3419f84e180a64edd7cd52a226ffb4faa60b4e7a9bae74522. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CA5092000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cab71c1ae3443fe0a3e0e0cafe8b2d1dcad64818d2143d8d570714a2f2592bb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFYW2090570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4c5cda10a5511acb05f4eee5bcb9b3a70d98c77c79e4d7d38d29ff3d1781d3. 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/FRX282186170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5132fca5e3913ba911ddbdabd0ffa8a66c2f0502a00d97ba1edc12cbeee0cd7a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:34:15Z), 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/FRX282196428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4c5cda10a5511acb05f4eee5bcb9b3a70d98c77c79e4d7d38d29ff3d1781d3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX282186170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4c5cda10a5511acb05f4eee5bcb9b3a70d98c77c79e4d7d38d29ff3d1781d3. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/FRX282186170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d17268701bb151f0af0895eff761ee6513483ff5ddf198259a428d1ee48e8d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX452121794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71265a5656d01d3b5e8cdd11482701486bb390185a4c6361d5bfd9b6ad12373. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:03:29Z), 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/FR2X42208830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cf5239bd1b58dc7824d91839cdb12ca239a286256f0ca5dbc0347c6c394bea. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CALVP2519734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290c5c97286382632c7caba4fdbd482c5c79e809876b4ee7dda52380ade52639. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX282257682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcaa3c2d1bdb14a8b961c93b86bf86633252d1e29eaddf6a873efc5bb0ef073c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRX762218869.
Say What - Gouyad Invasion - Dj G-Mixx X Addiction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636c704df1738f59c9db2621e1944535f77719e28b220903ca08b3b47c7bd6c1. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/FRX202336876.
Say What (Invasion Gouyad) [Compilation]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f2a3efb98c86544d138ca8b089b01cdd87f221094f52c41ab824495eb793d2. 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/DGA0H2313593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5add26ba63b059f3d3393b29928fc946600050e053ddaf7bc3407e4a06550416. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DGA052434043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85425c17785a28a93639d530dd692b81786b5e7a421bbe05c04c1d28ead6b11b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CALVP2562081.