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 0xcdcb73dc3d34ec69c1c046772889724771f46b0eb173fa3cbff4a838ae22c539. 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/e308cf4f-963e-45b2-9511-9954dffe7c18.json and https://artists.proofprofile.net/proofs/artist/e308cf4f-963e-45b2-9511-9954dffe7c18.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 0x1c381dabe9a76beb16a4d197aec7f745a685de7e182c83da5e1e5ecc58999ca6. 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/QZ9JZ1793469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba82556d3a171086602e10db0d46347a5c5e5d2cf070f491e76fca966030b2b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZ9Y21787139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5b8c6bd5ef51d46adc54025edaff2801a2daca73cb6ebb41540f6c4569eb47. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZFZ21998667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ca89c3dd49940345806f7dd6a793298ce141746120d6e5084d4be17bb4390a. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/NLW6T2000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ca89c3dd49940345806f7dd6a793298ce141746120d6e5084d4be17bb4390a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/NLW6T2000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3a42e6a311e8942d04f3bf0cff057826deecde9e8afc9a3a20c48545fa05c4. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/UK6KW2200106.
Give Me Light (Marten Lou Extended Remix)
Nobody Knows Me (Like You) [Lenny Cesar Remix]
Give Me Light (Live at Studio Zen, Göteborg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45d6d06ba5137068cb54cf6da9a989383c6f83bbc978b9b7dc4db01f4277369. 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/QZNWR2492620.
Indie / Pop / Folk Compilation: April 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331dabc37f9a07169d653fafd11dec6b34c10ebc74085d9f229141b41db20ca0. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USCGH2316041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e7d9cabefe29a150608465f42074acb369a14c53aab772843aa3bdb4b3e96f. 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/UK6KW2200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273f26b61887b68be91a062041a6285eec8fe4f20d85810f0ac02be4bb3fa75c. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZNWR2490700.
Ultimate Dark Forest (alexrainbirdmusic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c76614db357c27e559b9470717f9b449cc5b273e9eb98a903556e6dfd72a8d. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZTVM2484944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6f662443cedd438c38afe1f0782df8dfb899f3255939dda2dc983f81b6d5f8. 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/NLW6T2000044.
Best Indie Folk of 2024, Vol. 4 (Indie Folk Central)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273f26b61887b68be91a062041a6285eec8fe4f20d85810f0ac02be4bb3fa75c. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZNWR2490700.
Indie Folk Compilation - Winter 2024 (Alexrainbirdmusic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b37cfdb3cdacf9884f03808df9bd8c73bbc92d0c9273f06ddf6fbbd603c49b8. 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/QZNWR2490707.