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 0x0ee0c606083754f9143ae8360a89cdc7e9d358e6ad57fa22a2c60eb74a75a59c. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9375dae7-bd23-463e-b923-d8a86dfa30a2.json and https://artists.proofprofile.net/proofs/artist/9375dae7-bd23-463e-b923-d8a86dfa30a2.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 0xdb0fa16788ac2eb155b9035c5c117be518e4caa7c8776ea201958560bff84074. 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/SEY321300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd9b9065b6bd475e07a848f0dabd9638db030aa64987ac7c1b6d2e860e53af1. 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/SEY321300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1e5cad00a2110b48ca34105bfbfb5376aa1cb7d483d0e3f3a4ff9ebcabb2c1. 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/SEY321300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e703314c46af50cdbaf9da44fc9355dbdddb4583893243cf3a870f71fa7cc19. 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/SEY321300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac2c50c39cb64253a6394649aed6a07a3fc8e8f9354dbfb01d4510c8dfa63c2. 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/SEY321300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8206ef344f202514e85a1071d995087a351e0e28b10aaa5110e71d1f2ebe339. 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/SEY321300205.
Spöke spöke (feat. Thomas Öberg från Bob Hund)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a531e6463b3115bed9a774ea91d1557fc1962bb5f3a08a9cb8d38ff56989f5d. 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/SEY321300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038fad4c8a307919798030601544ac539389551650ba85c50ca8ec833c77a3ad. 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/SEY321300207.
Flykt i ett pappersflygplan (Baklängesinbrottstjuv)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a58fd49339de864823346726ae2288764664e31c74173b0701a0508a249914. 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/SEY321300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1a7aaeb1c4049ac9b2be0bcec9ff8aa8ab7b103bfa0f504a7eda3c66ec7cf2. 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/SEY321300209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe259987a4e6a10513d093e8c21b89e32ca2b835bd916ccc70765905a4848879. 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/SEY321300210.