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 0x5ee706ced3147600dddfb59c136374932f9f36c38d16927f50c3608fd09b2b3f. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aef5ee9e-5110-4a3a-86e2-c3cc9b5e3f79.json and https://artists.proofprofile.net/proofs/artist/aef5ee9e-5110-4a3a-86e2-c3cc9b5e3f79.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 0x62a9bb67d435f61026c25d8451183ec87a560b520cc60eab046063de6c67392f. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:10:02Z), 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/NLM791500156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1014359a92b1ccbfadae14b0ceceb6fb0f256a5915da6968e72d95a1702bd6c9. 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/NLCK41032897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5530e262b557574f203b1b36aaa70e79089babe7b271cc79c00712260604675c. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/NLCK41032894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064e4c427ada21f7a6bf216f060edc2cec8e0dcba73191ca992d70b1262a2851. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/NLM791600062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac614fd1b627ad4a61eff429c7294c6d4ea15f53ae397d21c2aa33ebadf6f0c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:03:38Z), 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/NLQZ41700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37717005c764e4a51bc7857a2898d6001cf8f56f8af4d946c3023584ca122457. 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/DEH742506375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dc9299bf48c41e77185020e131b6fe6c1353af618f19d7a1b2de016b7f25c8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEH742506376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7c3e586b9fe2bc24af1cd434924446de6fa6ad5935566a9520db4e4a38be44. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEH742506377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503c821e10fe807fe8de0abca52475ad5a125f458825e595abe2ace8e62d3382. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEH742506378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed354883a25b0b0e3ca163721e07deaa30f4046925c7f61faef40b233853aeb. 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/DEH742506379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc048ca32e2a90674d4ba18db2d497470f4dc7dc17eda2cb1d108974fb491848. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEH742506380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff122f1ae878f1e0703096bfddd3057c19de413670db5fe5a90f7b6fe52cfa5a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEH742506381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c8f565a23894d9569823811a70e6c63b53560feab17353541b1c6079bbe1da. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/NLM792500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9213d671db2120b469b2eac4add6495824568ab3abfedda3d452aaf0f0b41b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLM792500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3967a1e3e0e5843735006df871ecfc57a4414c05a9ac7eee02c2a06c15be76. 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/NLM792500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0755456de29fed54e7dc4b38654905e9c2c74f930876c236b7df7f878e416c6. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:53:22Z), 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/NLM792500108.
Escape from the Poison River - Artefakt Collage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1044d1b94476d8a633c6d0ca35ffe159f0940a34ac784326caea807014a31789. 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/NLM791600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1beafcc3a432bdee53da97d342aa4963e90fdfa1ee6474e0e0d19084ef6d94a1. 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/DEG931691679.
The Blue Hour - Valentino Mora Cosmic Trans Rephase
Global Underground #43: Joris Voorn - Rotterdam (Unmixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd119e952872a7286c55a188f810bd304d924cd3a68cc8ee0280d135a553a2d2. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/NLM791900061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07332ccd93af5f23cc7949d20081146ca29373f0e41c1247edc9523c6d6ccf01. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/UAGI11600003.