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 0x9acd39e18994216727e59ebd4b1e3e43d0d727f949a4a5a169f8804db8576ec6. 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/0ce3af93-b4e1-40ae-b77a-6d46625bfc89.json and https://artists.proofprofile.net/proofs/artist/0ce3af93-b4e1-40ae-b77a-6d46625bfc89.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 0x860fb57d562c603eeca29b35403aea5f7fe394ccb31ec83fe140053c22d2d47b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DETO31700273.
Funke (Guten Morgen) [Dasmo & Mania Mix]
Ich Finde Dich ("Max und die wilde 7", Titelsong)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778c38d2775a02eb033dc4e704a8a375efabf2437b0d254aae042e7643c068f0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEE862101651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8802b90b731fe0bb3584869e245adea7fb77eca16748ec2eecfc726862a878. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEOV42300637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c971a7e82aa36958a2098922f9c914a17159a8a4d534c728cf3ddd47939bd6. 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/DEOV42300633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82ec8f755d062266f552cedc723e8aa73ce09ed5c54d89b168718230bbd8cb3. 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/DEOV42300634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec955c11c07a2bf8f01884bf8348c0bbbd5188e2ccf6574305ddc1a65342720. 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/DEOV42300635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4b1054c7f5a85192bbbd885d58e2a85aba3f1625046f68745c12837310003c. 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/DEOV42300636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8802b90b731fe0bb3584869e245adea7fb77eca16748ec2eecfc726862a878. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEOV42300637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc7ba4e7ee7eda4834b95847a6077b9fbbb8f3c016efdc880f5a11964e54d0b. 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/DEOV42300638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fd39499ec5ed25682adf42c286adbab056aa21a6593e335e9f848b05053c63. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEOV42300639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf492db8d6c0bbfa549dbdfab3f6fbdbd9028ac1a1a34146c9e8d22386ba7af2. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEOV42300640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4468e3fe754b36ae7b34df0144d7b16eaf70747a01f92517df8fdeefed2f5178. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEOV42300641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b5fbadb83177dce37b2999ad11537169b31d6fc14b7bb8f3b1481512ac6199. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEOV42300642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7e9a7a562e368de36e0cc306e94f0eabe3157f24abfe1dac2f8443e05cc3bb. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEOV42300643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52742f0a9bb3078fe1abea5db2063c36d7e0a7b5a5f3d9e07595d3dbcfba6327. 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/DEOV42300601.
Freak Me Out feat. Benoby - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb63d0917c1f3f90064c579c52156ee84469692d23b4edce86cf5a7ee59e63f2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMSNZ1509451.