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 0x5cf105a94f3e2932be86ec5fa1ba87ffa53a69f7151b8fb2a09dbeeef20c8fe3. 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/e123405b-2743-471b-9b26-51fef12cd7af.json and https://artists.proofprofile.net/proofs/artist/e123405b-2743-471b-9b26-51fef12cd7af.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 0xe5dedfedc555edc001b717d6d78b85bdfa59541469c7ac046fabf5bf0f779121. 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/QZFPL1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1be6a56ae19605039c2276b6180f1299de91c3dbe07744964cd90f35244b7a6. 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/GBJAJ2301135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9877540269d1ca07e2c0ed9ee2b0fb2a5ec1ddfb07d1e1468169030ab9bcefb0. 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/GBLV62108351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5949a9ca3b7c65bfe790b7ee19bb11a81817352f0aa07181a7433be520e0e21d. 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/USHM22269532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6510bd8d2d45f28861eb241bd2e48f8f948c384de0c3e4b8a2df1e7c5379010e. 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/GBKPL2019123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1563b42506b1e764330f184cd6744a46ec6afd778d077211e5b5e51936013036. 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/GBKQU2461030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc131a3aa07dc83a8cfc504707371a4e1972ed5bf2994579bcc11ffec82675de. 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/USDY42489875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a76b8689c23c698efa4420cdc760b9cfe91759f20329c7ce215cefcf8a8fee9. 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/NLRD52339344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef383d0db4bd6442ac9337d29d4d6467b41b3620aa487e28caaecb06080993ff. 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/GBKQU2394591.
The Birdie That Never Was (Lipless Remix)
The Birdie That Never Was - Lipless Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a54fc77ea61d297b29e97d98e0d78ba9d0290c0d99044c6562bb9c5dc7d777. 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/USQX92304949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c41b07cc33ee05d519f42c38af752fb79db2c86d3ff2eb52cb271313a3bf19. 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/GBKQU2344248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428efd144bed5324f0118a60fa9cf97653d2e2ab28a081b1f03948d0077c8ecc. 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/GBKQU2322664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48eff461f81f68b6d5bc204ae60e91a27f0c287dbd3089836209ffcda2e36fb1. 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/GBKQU2284412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157011ec29bcfd616e06a8d57dc8f766a2ef69d2debc28035437875741206c66. 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/GBLV62132846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0498d616051429af7092fcc5102586ceb45730be1c98300b374b24c39c8a52e. 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/GBLV62132847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296ea7e3e62ae5e8cf9e00eea257a0bcfa56e50329e9726f491090e2bc6dd375. 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/GBLV62132848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa527ac9cdad4b35f38e5d6e6e2ab03a42201d583316a357db22d2ae5424f8350. 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/GBLV62132849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7aca6dba22109d926d793d5d83967232194574e4e968a1b3870336475bc8225. 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/USHM92120012.
Used To Be (feat. Wiz Khalifa) [Lipless Remix]
tell me what you’re thinking (Lipless Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af354ad8609ea045207294020801c856785277dbeaa80df9a68b1dccaba410e. 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/QZFPL2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe939b0ae49e3db86e66c805399f30aaebafb714a9ce287da9fd8e8b29fd97a4e. 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/QZFPL2000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d76ad6efd4ea3a09956a247c3e13308a904816235bfdb56fa55634357faab8. 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/GBKPL1976660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f878796361a3547a7359130498f68935bbf572e153caf5e793058916451cdf8. 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/USL4Q1843168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa120e4928f5433e8523f39dc5da0a896f6de61e476a2bddd4be4117b22596644. 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/QM6MZ1719368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb194043c67d1938d91a1097fbbf769ef15b7fe169c909cb7f7d285e0b3489fe7. 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/QMDA62269141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b5ec0d414ecc9b7d6aa4430c6c06b7c2d39e19889d742542daae542b10fc9c. 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/USUM71703077.