1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x2371931981325874a0ace5d54f41c7bc9a254a3b7620e5f78c9ebfe024657285. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0deaa50-2581-40b9-beb7-9eab595d995b.json and https://artists.proofprofile.net/proofs/artist/e0deaa50-2581-40b9-beb7-9eab595d995b.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 → block OTSBitcoinBlock must exist at that height 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 0xfb2a33ee2994785baec7f935a3bee46eb553b9eeb122205129d7b4163a7ab2bf. 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/GX3Q92038072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f90f8faf2e0451ac97a900690aa67f7888dee88103ea4db2010e7e68f1f19d. 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/FR96X1600206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adec4a786ffb6b8a2c111db2b2843b4970bebc900cbc1466d6801dc679204c6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR96X1600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dccbe76e8679b0737aa3e27b0bc2223bf942efcfd8788d1c0f0af3a91364e11. 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/FR96X1600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aeec456e95a8553318567aa42c527b1958b69b40a5fa1caddde70caec7deff3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR96X1600213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ffe010005e4999cfde53696e5f493eb00853d368a552cf98e55284124f0c79. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHZ62130773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f03bf160727eccd3cd66b9c6dbefd101f851ba411edbc516777a2ac2e5081d. 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/QZHZ62130774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd530eb605f533a24fb97a624746830ed16f5c7f183fbeffda5a81d81abfe0386. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR96X1600233.
Apple iPhone twinkle / Medianoche Sandwich
Movimiento y Otros Relatos Sobre el Fin del Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf28e24e8d9edb8954c44c0f7c5322fe9496f5d99c1709a9e5b9a489b2c0ba6a. 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/QMVLK1600001.
Movimiento (Demo) [feat. Sr. Presidente]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec1d79eaf4aaf66266bcb9e6413d232e9574616fd95d942d5dfe4050fea21a1. 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/FRX452236489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064b7bc154cacd2e8fc446e4a5c62c83b5c6f00e126f8be967472c26147f9524. 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/FRX452236492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de06bd7c4ff58639e17fff3d846ee0054682afbb5be0c333ea0aba8594245b1. 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/FRX452236493.