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 0x727413b1a4bf7e4aaaa2af990f4fc36d52f4fd7006b10324874fb434a0e54576. 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/b2c57ec7-281b-4cda-913c-ce692875ff2c.json and https://artists.proofprofile.net/proofs/artist/b2c57ec7-281b-4cda-913c-ce692875ff2c.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 0xa725ae978c04801ce8e58e0763e530550d7b09c187efd5dd54e10b59cdbf58e3. 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/CH7812539365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85157df272e5f7cd9a8ba138ddc0154d402cb1b9ea80ebc452937fdeaf89f9de. 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/CH7812532046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17cefa6f3a4e4b9d6ae4ee3176e168ee9b7e1571ff43cf6af771ca764e4ceb1. 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/CH7812532034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29084e1590d3cdce2b288fc30f5502021fbae2aa6841fe329fe0b1ed805ad2b7. 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/CH7812532035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3173ba5caf465349a2b68f2ed39e607975aa3805534dd33f0448e06b472c4a. 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/CH7812532036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed9c904947bd21dc5fe335795e321b6af3ec8f12f66a026cdcf0c7ae3b02794. 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/CH7812532037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90eb23977be8edb9781a2a5bebda4517861034be3792332b65a8c0e68203112b. 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/CH7812532038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b567a596a60eca7bb07fe18185e647747e1a7c3629b26767b97805fd702841. 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/CH7812532039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0f6d1ddf15dbcabbfada9f65c018f0a6c711d30345dd052b24e8443ac9e34e. 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/CH7812532040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e4baefa5dba448bc53003c44fa9a2ec8b49b415c04d72245096c6a8aa538f1. 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/CH7812532041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed971f4658f4de4ff0334942d6b9e4f5c97127227e582aa1cddcdcf55797ef25. 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/CH7812532042.
Sodastream - ArniMakeItDrop & Schillah Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1352a123b74e044109c90e80d178ee4ba318e0a604c3f682c577868a00a424d6. 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/CH7812532043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a1c8aa45a9d71022f5cf6f0593e866fb416920ba204cde2c9f3498e09b5224. 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/CH7812532044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd705a2a4b03c99af9040f167091ac0e1f244b0f686b9684ac3a4e4e9f73a89ca. 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/CH7812532045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec030d3ae4e8368ea04f2524260e0a98e6e167b42f8657f214f326b80b4dea5f. 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/CH7812423820.