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 0xc3a6754577ea5bb624cb1ba81152e1627edcacdb755ecd8864dcc0d88337a83f. 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/b28fdc07-adad-4cf3-8a91-78cbcdbab60c.json and https://artists.proofprofile.net/proofs/artist/b28fdc07-adad-4cf3-8a91-78cbcdbab60c.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 0xd22768320f2155ea111eea1b63ba8057ca7e7c442609ea3ee49ccb7f7b94dbe8. 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/NL2QC2100618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf105153ae5513feb6cd63b6c3c78e7f134d188f4256ff47f677811e21566f697. 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/GBKQU2224491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324fab0ad08c1fea17351201d9adcf20ff2d6aec346136724fcbf52587614568. 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/GBKQU2224494.
Nothing But... Hard Techno Essentials, Vol. 17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f6bf419821964ded2162dad65a2c61af776c71e7cca17c74de67338713e51d. 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/DEH742421960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680dcc51458adf6f42867f1200ec2124ac3ad885dcb41e02a574b9902314e802. 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/DEH742421961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8264e4f78d473ec77334d560a19a82d30936ec22c3bbfde77588a0844e47dbf5. 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/QZPEW2460732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa983757f2b5a1e5f55a6ff0bc9e1125e7d6bc6c8005a6363e0e842f77ada0acd. 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/QZMHN2219062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9326eb57b30927e1e69934bd20ce55acf387166cb716be9819628a5c851dbb. 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/NL2QC2101129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e44613e0bd9c0960b2bc4baa8cb93db53f92efebb0613ea2d1317802500eee6. 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/DEPI82312490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e333c1bcfed511b7dcf7c07d3eb63e6ffe6e2fe9afce6d224fc292014d134e3. 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/NL2QC2101084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041a84817295a46c3c8900000abac4140c77924ec11042dfd9af204b7cf4d0f1. 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/CA5KR2323062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e14b577e78fd31f9e51fdb2cc39f7c6cc5246b972e96604038e64095977327e. 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/DEPI82214777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44497f4caf2c8fef8f00eed92bde52a3f3e56ef30da3ae5eb74f454ca0707764. 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/DEPI82214778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084ff7a0f0d32ac51be685da2edbf69d6ec9ba4a92c3c21724b093679e363049. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:04:10Z), 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/CH9742300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc96ded1a8e6edc70b275f072391c8657a95e68e22c75742173ab6d6dc5e0f7. 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/DEH742302314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a43780c505d800fec6f3761a10f35ead269d56995018dd66ea327622e003508. 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/DEH742302327.
Absolutely Energy! Workout Selections 031
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcbe1bb51a079c5f4308a8c7842dcef767070f755ceef998a6601bfd1ba3437. 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/GBKQU2391681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d92051b2778364ddd3f7edcaac5307689888703b74a19235bffa3213d4ac59. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBLV62022219.
Absolutely Energy! Workout Selections 030
Vielleicht Vielleicht (Holy Priest & elMefti Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0e539d3d977f30b81b201600bb37dd18418598ff94c3997e9ef584183b008c. 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/CA5KR2515738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11bde6e806c4f6a6487376fa3963cf9dd07e3f7151fdb8a6d18489b9aec08cb. 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/CA5KR2511140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c67b8ea45872305841f92858b2faf7464c44a48099e602601500ae7b292eb0. 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/CA5KR2495153.