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 0xd95bf8d57dfe4acf691d8a192c10fdea63d6687363b445428b4831cbdf1abd42. 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/b510238f-3da5-4ca9-9f2f-56445abcb829.json and https://artists.proofprofile.net/proofs/artist/b510238f-3da5-4ca9-9f2f-56445abcb829.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Every Lil' (feat. DJ Plead & MJ Nebreda)
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 0x6f7dfed28ccd10ad8c0b39c93786ab18215d036c3c55db62b922c0d042629c70. 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/GBMVH2300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670958d7ce341777ce470b948cb0f9d3cca4a20a60cc75ecda76f96f07881e11. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBMVH2300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a504223d6e036067f17434a6bd0845f06f752c53feefd63085b4eec01a2cab. 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/GBMVH2300490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0b1eba2aa664020bd8f774f267fada3c1fcd3c4373dee9ebd773a4401f1dfe. 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/UK8261900686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20112dc4d6f2e30baceeca179f945689b4dd399fafe523fdfc85cb0914aff775. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:43:00Z), 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/UK8261900687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fddb7b202bb8a3072ce4719a565215790cf1f71f372dbb2ee0ff7f7ebd93a53. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/FRT092400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344f31a20917927993786a7fba0ce3e71e2df70b0139ce134cf2085ce3fa1c2e. 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/GBRYX2200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fb91cd1dc94e9a48054c8be9d4f001b74457589eeea6c8faaebad636c9f0d8. 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/GBRYX2200361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317813edb4daea7ba31c31aa12bf21de5cf910bd1a6924379b0d43ab1fc40998. 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/FRX202058414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e6ddea1928a6a04f7f84423f3dfd37e50a7b24bc878dd9102501856f5c546a. 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/FRX202058415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944a9b63fe4b8f2fa1a57da732aa892139bb60e00020f71041735bc6652740b2. 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/FRX202058416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0572b3c05db65f3e223005683527d291211ecf77bcdc0c2a16974d4dc895a3e1. 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/AUNMG1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c1fac0e7f0fb2b4ea6f5646f0259b69364214825faac3f29f84ded1bce6905. 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/UKA9G1700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f3e50a8158c4328a51625218ff22c7619ec1f9c4c3414625b037192c4d1482. 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/UKA9G1700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31678e870a537e3ffe3379865d07455d073e91c054ff2ce6ed6c1006b940ffc. 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/DEG932500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f40e34472b91919bc4e88f81ec508307588ae8caf0af793c707bfa2b05f2b0. 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/DEG932500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04cc635ca34db451069091aa5d1019c91052a80b34f739242832cc137ff3a30. 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/CA5KR1952676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd028d08622a391805deeac032b7933c7223a56dda44c1c6cda492421759ca8. 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/QM6N22250690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7dfed28ccd10ad8c0b39c93786ab18215d036c3c55db62b922c0d042629c70. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:58:22Z), 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/GBMVH2300610.