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 0x450da2b74833ee930f4ec35ed19f095ea82a1196693ea68bba410fa5fcf133a7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0d9a5b9-387d-4809-bf43-485dfe266ed9.json and https://artists.proofprofile.net/proofs/artist/d0d9a5b9-387d-4809-bf43-485dfe266ed9.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 0x79139afb7848882c27583c03bcb904fb16a82b6323af024e7badf453e9f9e323. 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/CH3132100479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1edc91d53b4ffb97bdc87f59565f7f6da934f1d563c6a228777cbf147e4f40. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/NLT2H2200488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70868a6f64584d1b9d4ff51f468e61364b9709a8d3ff55f37d57d929480d1870. 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/DEMA61905750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e6b242089f5fdfd5e207a84553c9b9148000c0924e330699543a7e1fa241c7. 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/GBLV62217200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cca1299a9a6c6b1407bd1f76fbe652fd0776fb07048edd7da03765adf66095f. 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/DEXW62300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83ab54c01e90e5cd86db01747aa06823fbd73e6d6760688bb1bd5ebaa9e5c9a. 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/CH7812347477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83ab54c01e90e5cd86db01747aa06823fbd73e6d6760688bb1bd5ebaa9e5c9a. 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/CH7812347477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88acf3f5b8376bad8820efee3988106f0d01e5311e9d9faeff8a3d995cf461c9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CH7812355960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88acf3f5b8376bad8820efee3988106f0d01e5311e9d9faeff8a3d995cf461c9. 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/CH7812355960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4812e5f2c730ab28b9929c4f23c8aaa5d4b50541bcfb062f566716345ad5fd5f. 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/DEZC62360818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4812e5f2c730ab28b9929c4f23c8aaa5d4b50541bcfb062f566716345ad5fd5f. 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/DEZC62360818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccb5a3308fc9d1575f7f096bb56c6fe32a6d30d4fed4efe199f3356744b74f6. 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/CH7812371683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92fcb065171dd9848c909cabc5bc524b129c4a8c0326a6628b0ccbac7b41698. 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/CH7812371684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccb5a3308fc9d1575f7f096bb56c6fe32a6d30d4fed4efe199f3356744b74f6. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CH7812371683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59e7554d3741a2a7ee250b44ad5fe4b566ab30eb98abf78abc8b241d5dc9466. 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/DEXW62400027.
Songspire in Ibiza 2024 (Mixed by Robilardo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752781d226bb7b3b8e86b97f3f54587043094b49a9935a136fd9c24f042b9dda. 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/NLD682401952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abd8a6f9070c0cf45542e6e5cc780cd91e1080b211d9944a38ced773edc6380. 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/NLD682400852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8acec5b3568bf15ca9e8aaf3cd722f41edebc51eb9e9cb78408e7b5756ed8a. 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/NLD682402556.