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 0xb0f1c0e1e14b86e2b1412f7233ecf31be1f4f1fad7c692e602930795258c7784. 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/dbf16b40-24f6-4124-a864-b77a2b8a2006.json and https://artists.proofprofile.net/proofs/artist/dbf16b40-24f6-4124-a864-b77a2b8a2006.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 0x949559226fe5019c4ff68fa2b2dac51fff2b881d89cfd48c5c41c64a1ff64f3c. 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/CA5KR2370872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc540d5121a4120fd916ce0fb35420739b67f9b4bbfe32f0c9549d810ede11a0c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USYBL2300621.
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 0x7ab08994cb17811f894e1698b244486a86c288f9e3302db248a6812191fe3b7d. 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/FR26V2089647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0139f167dfd1487601f9bba3d2dbf34818309ba7f2109cc52974e8c2d41625d3. 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/USYBL1700770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b79be4e68ab2840c001626429ee25ce823efedcb58b58504b32f91befb771a8. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USYBL1801862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a52087c52add9df5d9ab1183a5bd7d0c6d568192a3d1f6f9e3e928a4bb5c54. 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/USYBL1902215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5293752f3883ecc24075e4b8b0e8f5d103d542d4e148c939e390240be7d037ef. 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/USYBL2101341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5293752f3883ecc24075e4b8b0e8f5d103d542d4e148c939e390240be7d037ef. 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/USYBL2101341.
Downstairs (feat. Jaquell) - AC Slater Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644d51bf5a8fa23e4ef2735aef8f7be076bca176a59bb3389db3b39417820d8f. 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/NLZ542001648.
Downstairs (feat. Jaquell) [AC Slater Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d1cce306b1bc509b47165327a3f2728c92b79bed9a47d63266b3179656e1e6. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T09:51:54Z), 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/USYBL1701000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b52d8779d77761fee37ba6f6b3d9abe068639b788ac027f204d3a21317e0dc0. 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/QMBZ92261865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bc40bcecae9b14f0c804320e70505290702c1e5862871e80de0b1caab7391d. 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/CA5KR0000616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0ad77a776936f9a9b97e36bb40b9d5581538258bc22fb806cc5a8e413f8d1. 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/CA5KR2382831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e7f2a60cd39b39e61ad4c1dcb4062de844e0077db3d1304f5057fa9e81f026. 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/CA5KR2375134.
Green Light (feat. Kate Wild) - 12th Planet Remix
Green Light (feat. Kate Wild) [12th Planet Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9db4568ce5ee66c027d6ebd02747add4f89d8b7b55afb04c5a7dbde976fa2eb. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:32:04Z), 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/NLZ542101532.