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 0x29b3a129adc0fb3ab5c63eb70e676b20f228f9a6a6a487e42502fa1a00b8394f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c7d6fd8-16e5-4407-bfa8-fae7d6089668.json and https://artists.proofprofile.net/proofs/artist/1c7d6fd8-16e5-4407-bfa8-fae7d6089668.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 0x904bc9a8c0e6baff132d9254f38b2d0c11d959af88aee7b0f3838555259300e8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/CZA110500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8866e6d09122769f5c880446e23696da9f6167606414bdbd50187331eb03e7b. 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/CZA110500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319fba4f1261d65ffe2d252c035c86df0a6dcfa6c1dfefd447b377070d2ab732. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:58Z), 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/CZA110500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21407825d58dcabdf9c9dbc21a449fc791833a902246ec0b4f50fb875ae5fe5c. 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/CZUM70700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e782e43029a70ee8960bdab5417c690d2d5605eae122f610fa6e9fd0b4bb273. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CZUM70800462.
Coconut Tree Tsunami (A Cocktail) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1b2c389d2ba52408b3c830aa81572804c33418648afadeaa3353aa7a25024d. 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/CZUM70800464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05414416d43afef1115c2c75d93a4c6b47b18e6b1fa92fd80c879b9cc19d362e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CZUM70800468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824f10ecee63b12f4ff974dd1b5843951481f9c4391c611ed05be78d7c81a114. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/CZA231800246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb2326de7fa55c2ecff5fadc58a138107f154bcd67cfae8db2116252476c0f5. 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/CZA231800247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d93a57d80c269dd59070aed080792457008918fd472a04cc9470fc374afaab. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CZA231800249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeffe1f0b8e5e324559f873c0012fa3dd380cfb318f2513b4d9b47532714683e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CZA231800252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc94dc08010ba434068c111b1056f128e7ea90b2c32d7981a2f37fcd738e41cf. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CZA231800254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a0c048abc0dc36aaf3a45862ec92546d6da4361ee90820c2d669cfa1152e60. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:00:38Z), 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/CZUM72300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534c7ef4444e8701bfad3a0a128351b5257ef99380d2298bdf14f2026f178d2b. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/CZUM72300153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa668931edc0bf0b142274483b63226d465937b5f03fe4eac5eb34259fcb32e43. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CZUM72300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449c5fe25e0715ce3a92e90e6b27615c4713fcdcb723dd1d028c60fa0ea3745a. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/CZUM72300156.
Elements (Best of 2005-2025 Remastered Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dfd8d8f1b4bcd27e4be65d1ede247841ef1390ab4416b68bcb91e0a2147ce3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CZUM72300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8773c9dcb052d48a93d6529445235aea85f3de049aee85191e60094cf93bd4c0. 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/CZUM70700070.