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 0x617c9badc87189eef64189f54817280937ec07152450885032bbc7d446f17462. 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/27f1801a-2fd7-4071-a5e1-41832fb2d617.json and https://artists.proofprofile.net/proofs/artist/27f1801a-2fd7-4071-a5e1-41832fb2d617.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 0xb8a887bdae6bd83f200dac3bf85f63ab6a080ee468bab29166c8adc4c35a7ff2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NL5HJ2300337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc500009e3044dedd710da766cf9adab0e194b46c438400675106777a295f74. 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/NL5HJ2400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210cfbf72c62e471a090242cafe2549cb6011bd4ce6400a6d7857e295a44c314. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/NL5HJ2400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210cfbf72c62e471a090242cafe2549cb6011bd4ce6400a6d7857e295a44c314. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/NL5HJ2400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d156610edd47db2cd2af5f2449929ef7a0ced80c7b9982bfbf97ed0e6364a5. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/NL5HJ2400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a887bdae6bd83f200dac3bf85f63ab6a080ee468bab29166c8adc4c35a7ff2. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:31:40Z), 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/NL5HJ2300337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d5997405123d8662e276d42f841aa2b8e5db7c52ac04875eacbde08e390b4a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NL5HJ2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea78c795c3d6241f54d12e657c9189e9c5b2120eb43aacd68a68f7af15c9217. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NL5HJ2300202.
Levensgenieter (feat. Lusho, Xeno & Brunzyn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b70c0ad1c65b47b3dedfbbfe86833b26b91087426be3e46547ecf0962baabc6. 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/NL5HJ2400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faf52a1ad354712b93e3ec77e2506d63a19647ff4e5fb5b917d649b998f0cdf. 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/NL5MB2300001.
Messenger - Daedalus' Revenge (feat. Lusho, ADF Lucky, Yozef, Black & ADF Ricky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaa661a19c0d998f0073893f5de5fde948ef49c4d787ae4a3a5cb35cbea4305. 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/NL5MB2200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8211a37392f3db30609434a8274a33f3a6f93b7f804c4762ea45174f171bd9cc. 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/QM6MZ2450243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea78c795c3d6241f54d12e657c9189e9c5b2120eb43aacd68a68f7af15c9217. 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/NL5HJ2300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b70c0ad1c65b47b3dedfbbfe86833b26b91087426be3e46547ecf0962baabc6. 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/NL5HJ2400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7defaf44f4033e9db75ece45a8cc38bd47526ad923cf31529d138f9dc4814cf7. 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/QM6P42312089.