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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5beb1428b8a5f1795042203558e492af4325c6298f339d4a79b87f368195322f. 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/0d0fce01-3370-4459-b2e4-0e3e803a1635.json and https://artists.proofprofile.net/proofs/artist/0d0fce01-3370-4459-b2e4-0e3e803a1635.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc80807a7014447c30ce9ae9c1f0bfbb23e2aa20afdf7e02bedbe6a8e995886. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/GBMA21915426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980118e32bf194a6f07e3ed75d50902aa7a59a72b85ba7c7cca9779c9ff3e18f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBLFP1901774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc5942a3a6d53e6d14de491186d20b7120720efaf16999ca144ea23c96c34a1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZNWS2222717.
Animatrónicos Five Nights at Freddy's Rap
Bendy, Freddy, Mommy Long Legs & Vecino Rap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41940a275fec4164ab2b503879f5dd7a79ec93b7e50a8e60fab871a3f38a361f. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZTB42388313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc1eb81552846a917e5b5a8c51b93ad91f188452c2baf68040369f58884a2f8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAZ2411322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49f7fdfdfb0d3e86171efb4ce1e59e533b42039d8f4015e710932dac67f8c86. 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/QZWFG2456690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59f819a89ee510f8355f4eba6c6f35fe12ce6576498fc9ad5f8a377f99ef43f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USDY42199924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6b5f4c912e6b9245a68d6ccbd44e64349f0e3475c8d74d09d83da26ea21e79. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZRP52351535.
Creepypastas vs. Películas de Terror V5. Gold Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0f37e6d6551aeef9577a126398947b5affe6ba083fb36a78788946b162a550. 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/QZWFQ2302960.
Five Night At Freddy´s Macro Rap. Halloween 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb334a9d7ca61950cbbb0785af69644dfb1d36f6980224e8752efc406e3c44553. 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/QZES72427866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062ca1c1471f540c23cc2a289f63d22e5fbcb7febbe5c10401046c00f7a8d9cd. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZFZ22489666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0644bc9f3029e0d074f2dec013fba728f2630a0f992bece985d0b5c27cc1ce. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBSMU4120711.