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 0x99f5f6a86640174e740c186a70fb663258bac6a0bc4ceefb52960bc4bd4cd22a. 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/f1b1ef7e-6b4c-47fa-8e97-66ade9c21450.json and https://artists.proofprofile.net/proofs/artist/f1b1ef7e-6b4c-47fa-8e97-66ade9c21450.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 0x236a6a2ae3505bb512f563fc3e35351278562dac51334ede8cc211360e733cb2. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QZPJ32144815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59416bc8220ceb7cc1bf87e3097caeb2dabca4e567f3a10a83e8f121caea6802. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZPJ32196019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0392fc0fc0b2fcd23cad0c4b828c9c637ff931a692211605b292a78a337f807a. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/QZPJ32196251.
This Is What Falling in Love Feels Like (Lofi)
This Is What Falling in Love Feels Like - Lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10938adb076ec6b4529a89ad576da603a235fc1a848ada63bab584b0300d244. 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/QZPJ32198581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae9d3a9149de741dfeda892eec266814554a896ef66413dc129e5514f930d8d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZPJ32202353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8961d614e64e84590b4fbec927b283c719e919b431a975c43c16c1a5c8fe82c6. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZPJ32202810.
I Really Want to Stay at Your House (Lofi)
I Really Want to Stay at Your House (Slowed + Reverb)
I Really Want to Stay at Your House - Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a8b3f85659c50c1e180ff3b6badf70f58da9741806a08726452a6574565681. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZPJ32203903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312f53242042dd32cbf88bebcb2dc768513fbdb2e61f24d794847a3cb3090ce6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZPJ32203904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073d96290451fb5cf01c78fa946d77e5404bed583c4576b74148f60b0d336d45. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZPJ32204103.
Evergreen (You Didn’t Deserve Me At All) [Lofi]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403b75697d344547c3919f10f68e54f1db35fa225aa84a4d93dfbe832b04bc7e. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZPJ32209383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d67170a87491245b372733d28881d9abca60fc451a9e34689982e324961232. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZPJ32213610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eecd162f9ce34d4dc8febf27c9f9fd3a8918c45b551f84cf27076ea98ea1ed7. 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/QZPJ32221478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbac47f47ba38d2940da270eb5dbd2970cb5acb0b6c15906a214ab88fc776f13. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZPJ32336853.
we can't be friends (wait for your love) [Lofi]
asleep among endives, but it's ambient (lofi)
a pack of cigarettes (Instrumental Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937992b567c7c21fadc623ceef14eaca0c5e4b53d782fecc90d50c6bed2b1e4c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZPJ32487738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc76e7421b589c991a74a12e161cf6867f48429e249d5eace87eb0a818cec42. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USL4R2583838.