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 0x5cf47a94f6f655ebf2057bda2826bbe998a4b11efd1ca23d4229600c0d97044c. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a885554-61b6-4926-982b-5dfc19ef1477.json and https://artists.proofprofile.net/proofs/artist/5a885554-61b6-4926-982b-5dfc19ef1477.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ein Strauß bunter Melodien - Remastered 2006
Ein Tröpfchen voller Glück - Remastered 2006
Schnaps, das war sein letztes Wort - Remastered Version
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 0x8392486c6db11539315122730c5a1c6ddd3cd75f0deb0284bf4004088e4ff7f8. 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/DEC760600392.
Es gibt kein Bier auf Hawaii - Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dc13470e59687be07655c4483580b107585632994d0a5f33556f43e3e07552. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DEC760600394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f6d0402651c1f75c0830d5c6df8323b0aa22715717c3f99bfa5cd27eb02cd3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DES371100432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc96a0b023fb36c74f301d670af8ee12d55f968710c4587a9160a801f39d5596. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DES371100438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde2f2c5fa35d3c57c943f34c477d72f2a63c7c18ea0eab96ead48e8cbdb22b4. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/DES371100439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b11504d7909f06ac497f870be9fc49a704e792d697fcd8efd87e426a76da07c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DES371100440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468448239bfa66a92f389ed30359ad7b9898efb96a69ad93edba63daac206c6f. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:08:50Z), 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/DES371100443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3143ba62d3a3781fae8cedc51e2eb32b54798a710da288e1a272341d280233. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEA451404440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5f5b5a3a3f1e03d784dc08a5d0619390a3de517359cd48174cb40673f49497. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEA451803250.