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 0xf9393e3e97e38199c65ddc56888b3436e0e3bf55b4a3e48b3c2f91c3b97c895b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ee94dd7-89eb-4afa-baba-a5c55c869091.json and https://artists.proofprofile.net/proofs/artist/5ee94dd7-89eb-4afa-baba-a5c55c869091.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 0xae28937e23f3eb6c73c2a07c2c67c21c6566076d906b7fcb70d1030145788212. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SEPQC9217110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ad17a4dfb0f6134e5ef773e892c3624e2829dcda58b4ce6e0757936fbee679. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SEPQC9217120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9229d2fdc364014db1dbe292eb67fd227342771f18d37f8a6db986dd0d39683. 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/SEPQC9017070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a16699de8bf24c88c11ceeface96c1592daf4b49edb3137bada0c237dbbe48. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SEPQC9017090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff381d7c1c989b2f4cb8b570353280aaec793f5e0528df5da7a2cbc293dfc67d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SEPQC9017050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa070ed9c32c2a2e4d66b23914c2086afc1402f1fb2b92c909c65a1a5bfd399d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SEPQC9017060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e88fcdbcfc686a8b28b72e3a0f90d5712c307a8336ee361b84176ae75ce754. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SEPQC9017080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8712ddb7b4f345ec496f5da91a677b3f8083a6568057856a013b4e8f97f4a5e5. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/SELAA0500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9229d2fdc364014db1dbe292eb67fd227342771f18d37f8a6db986dd0d39683. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SEPQC9017070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc9efa19837db76330e81a7122e416efdc1166a93125b63fd29b8b11a03d340. 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/SEPQC9017010.
Dä va' då dä' - Pugh Rogefeldts bästa 1969-2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc9efa19837db76330e81a7122e416efdc1166a93125b63fd29b8b11a03d340. 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/SEPQC9017010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85792a6f991d22f3ae027df1d4c1ead8b1c089c6a0ad2f8c911aefa7bc353039. 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/SEPQC9217140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb9660e454811da192185881b2bd14e8ea91f466eaff109d7169f1fd0b0952e. 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/SEPQC9217090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc9efa19837db76330e81a7122e416efdc1166a93125b63fd29b8b11a03d340. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEPQC9017010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc9efa19837db76330e81a7122e416efdc1166a93125b63fd29b8b11a03d340. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/SEPQC9017010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9229d2fdc364014db1dbe292eb67fd227342771f18d37f8a6db986dd0d39683. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEPQC9017070.