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 0x8a1127ad9388bb2a7a8fc5354d418dfeff5fad9984f88b8b98d41f7c8aa14407. 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/57297f24-5ed6-428a-bec6-3bb7941a9887.json and https://artists.proofprofile.net/proofs/artist/57297f24-5ed6-428a-bec6-3bb7941a9887.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soulheaven - Taken From Superstar Recordings
Now And Forever (feat. Christian Älvestam)
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 0x5ff2ececd4c20055ef2d51f342ad7450afafa6512681682d4313da0410d823a3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CYA111100002.
Now & Forever (feat. Christian Älvestam) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615df5009d2db08a849597e3da8d82959237faaf770b434139ba78c0b557f9ea. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/GBKCF1200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4751df1c08631ae4f638ef358920591a2a502bbf934e25876de4d63dc3d19d. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/CH3131340039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15bba6a689f8f1e50c309486a348eda04a85864ad2a70bf44d1ac902ca19f08. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/CH3131340487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a35d7b670c740894b7f2a10bba6cd4914ce4b8ccb101442dd0b58f1c035c89. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/CH3131340506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa2bcfd8ee164c59d0c0b3757359c0dab4ce7bb7d1f83fe4bc604d5312e4d3d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SE3AA1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df1d44283732afca22536fbc639de83b819723d72c5e1c146fc7da880ba53cb. 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/CHB701400007.
No Xcuses - The Violet Edition (Unmixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c72a02d6b8a4e27a69d279df7b5747083b03c678a3b04f83957d460a4596fc8. 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/NLF711102116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d493906cd2520d9d21b66330c0335467d0def5d5a5e0c52477731e3c5dcf31. 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/DELM40700208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b9f4da6fc85455b441b7bb952bff4a1b2bdcbb5aecc6b9b54c3bff919c8831. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DELM40800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff2ececd4c20055ef2d51f342ad7450afafa6512681682d4313da0410d823a3. 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/CYA111100002.
Only U - Sa han nånting om mig eller edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17974f9e60d10f240c42b004acfee94119d7fb51e314be72b471f752547cf10a. 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/SEUM70700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19215ab88e61b68b226b9ac8f5d0e929273ed6aa8b570f6b92608fb8e15e014d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH3131340038.
Teenage Crime - Axwell & Henrik B Remode
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d45773e221afd6b39e5c5e9fedf793255d68b890013912bc8ab15350f43e0e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBKCF1000131.