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 0x5b588ec6b983bb9a7daf191fdf5ec0dde5867e71d184ec720e621beb3007f12e. 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/9771e52b-6b4d-4a83-8a58-7cd8e4e11efc.json and https://artists.proofprofile.net/proofs/artist/9771e52b-6b4d-4a83-8a58-7cd8e4e11efc.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 0x86264e7d54b7fe81a0fb3d4ff7be4017272870c8962f545539050fe38c96399f. 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/CA5KR2340047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad8ea9e21c25e06e6f1229573be09bf50835ed4bdfd24303caac0a89c733758. 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/CA5KR2377052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb095f7a2944db1d63a7c03fa63631868d2bf62e125730dd3cad4a9cafd1624. 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/CA5KR2377056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49935f85f015f9bcd7cca628d546d73e38eeffe9cd1d4b73afc217cd58b31de. 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/CA5KR2297694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a4b5d37c56c15b1eb9e2a589c3ed1388947aa40a2f877074f400f760effb27. 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/QZTGW2100637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877a39d4f48a31631264e749ef8ea61cf4e22e3119eb3c83325fbec29cad5d04. 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/QZTGW2100499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060ba1fb4189843111f68cd34d83284295e229a2583a246d28b2521bf6ff4ee9. 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/CA5KR2173383.
THICK (feat. Megan Thee Stallion) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76094ebd81289df7ae3b2bd7bb6e58661fbe0ab318f5f47c84d4a07c1aea5276. 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/CA5KR2105823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230056cdd33205e6632d0d88312fccddc8cad7561b650d842a46faeaa7bedd07. 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/CA5KR2043043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb2742c29b58839c9481b8c020357b6c2d1a058c32373809af9f2ed4bd5e2c2. 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/CA5KR1958190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1ab9796d643f0d5e1f6f02033ca8b0b57f5a4d43bb7a3c63f2ecfcb0f256f4. 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/QZFYY2407329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86264e7d54b7fe81a0fb3d4ff7be4017272870c8962f545539050fe38c96399f. 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/CA5KR2340047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e09b727deb9427c05708e94b73d6a4cfe3591de440db6a188334edb0d911c6. 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/US39N2203274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49935f85f015f9bcd7cca628d546d73e38eeffe9cd1d4b73afc217cd58b31de. 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/CA5KR2297694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec4c8532e002665b4aeb48985ec49a1191eaae6fae1e7fc28929fbe5ca8545c. 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/CA5KR2274215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4417d91e1ab9a4557736879307c102162753c8a3bb524387cef6ad95af5b2c. 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/CA5KR2207158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771e48024bfb8bd2c3534fb672b55dc7c8f0630d46dc816dcd5b71a7e7c754df. 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/QZK6L2422792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d65ac8877ccd8d00d0b881c23ea90ab2c8df8ebe224fab07693cdc859396d8. 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/QZJG51711911.