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 0xd24fd5891af770bc4800002e2addb86d346fe383aa2835a2a77f0dabf072ea3b. 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/c491934e-677c-49c2-9742-4f4b3308d1a8.json and https://artists.proofprofile.net/proofs/artist/c491934e-677c-49c2-9742-4f4b3308d1a8.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 0x3f27b4d1d2c4dd7f18160ff17ce001a7e7df60bf0556d96d7c699da9942378f9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEHK92104590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc6afc371b654e9dc272eb7202ebb79688a5060e3d3d3391374adb28440919c. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/DEHK92104658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8965a3b5a7bda75ab0c99b70bb940d487bcd8348558fe97d0c8723d6e4870073. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/DEAR42492226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc5452410e7e8674cbd765102756414148d59c0bbd02c8388598b415a224075. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CH7812406671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc020231eccdd58741e8d1b29b02418bd674aca3b499a19ff488c0d5fac137ef. 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/CH7812413162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a4f008a560751ab6dcee64ab6fe8aef84f1cb38202f38ceffe5796f7be5e64. 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/DEUM72407469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd889b948a977d8fce694281aa5d2dae861ee204493df71573596245a6d27cbc. 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/DEUM72405609.
Irgendwie, irgendwo, irgendwann - HBz Remix
Ballermann Hits Party 2024 (XXL Fan Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33015ba80cf0b097ef15a7a4d025e481352105f83de24d539eff159e78ae1d84. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEUM72307747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a4f008a560751ab6dcee64ab6fe8aef84f1cb38202f38ceffe5796f7be5e64. 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/DEUM72407469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ac3ff48fadc2b471b28d47ce3e8923f7bd58fd4e362faf6045a9ae13f19ce9. 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/DEPI82300742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1631ab6d4232e13aa81b2bedb64a513173748054d041eb298653b90b50e00c. 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/DEUM72307281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0708c21eee80a07bb6bfbaa6d7665fb4987827705346c086b17f9e56af0543b4. 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/DECE72401568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0708c21eee80a07bb6bfbaa6d7665fb4987827705346c086b17f9e56af0543b4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DECE72401568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a4f008a560751ab6dcee64ab6fe8aef84f1cb38202f38ceffe5796f7be5e64. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEUM72407469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a4f008a560751ab6dcee64ab6fe8aef84f1cb38202f38ceffe5796f7be5e64. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEUM72407469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e66c2a1425dff0243e03bae0d0df8e9fb01aba96fe78f68291baca9e2065c6. 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/DEUM72412436.