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 0xdd74b4746a1cd1ef1c42ceccb5271c775537723cc4bdaab51162627d9abdcbc4. 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/2cafd039-87a9-4847-a341-1eab2f899106.json and https://artists.proofprofile.net/proofs/artist/2cafd039-87a9-4847-a341-1eab2f899106.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 0xf5df2caed0d44b0f641dd62d74cbc267595d1a0cc417856d2c10ed7a5328d93b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBAJE6900677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4784639b03bd5a251a781527e90d7b27443b335aa59a8ce8a2c89a9eb91e7fe1. 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/GBAJE6900678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5741b81ca3867047e88fee8968fc13fbf7b62a7bd20258e1bccf5590e1ba71c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/GBAJE6900839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85ff361680588c5e292013d4f9ee4f46e2085ef8012d7a35e8b35549a122f7d. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/GBAJE6900208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6a0326e049172b3232bf37e6d9f5f347f3f591320c9c7645133ec0915ffaa8. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/GBAJE6900241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceca92f24190312db50cf1492846dae86e9acbc9a468ba2548b0a6993e1217d7. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/GBAJE6900948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789ae5656d3938e42c9f551941419e1edee940b781093bd886f83bd2f8440085. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBAJE0504541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d0784faa108ab37ae2b740b655cf836fa1e845b7b43424223e85a28434e4a1. 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/GBAJE6900838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07bb4e01e9a1e11aeb584debe05ebca83a56bf98f82b9447d2c5f5ccd90c3b9. 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/GBAJE6900679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd9885e642d4b6c319faaefc503d578c6b1a2aecabc81804dc403ff4a4171a2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBAJE0606038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3113c4275641b2be152b7005fdeb7bae88a3a306f9a78eecf381c8af7830b4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JMA020600125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6287a2c209c950c7f1014102658220f8c1ddc7a9cb01d3689e613fb4ba3675. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USVPR0814220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099ed7163e152658c27b175d9608c50d5fef3d1a76c431957cd7eedfcdb0f35b. 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/USVPR0814225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2889406437519e738214e048b44f7e8bf390352cbbfaa443c7b8b4d9f83198b0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USVPR0814232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f19ad1738ee611ebeccee20936c0def2cb364aaaa332e7a2d540a2684f5b90. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USVPR0814233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de8ffdafa166915328b366986018cf056503725bc0d28b5d065afd68d4570d5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:51:07Z), 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/USXTN1046549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed227e2d4b26ff3d4643f13ccf5d991cd1c6645ee04f9d406a29c11b6035e79. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/GBAJE0500858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d57533544aa2bef234f447cf03494c0338dd84046e9902103b5ea1854d258ee. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/GBAJE6800235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca053a672a25a1b1c2106b186600ce96eaa571a38266bb73c75f67de67209a2c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBAJE7100546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e6fe82d689a6e2adc47c77b7906c0b68135ee93a94cdd03e0cf8f112c11829. 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/GBAJE7100452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111a606bb69864a68299a6dadebe4fa9d629f3faccfd2a1086ab7e4f7dd3c35d. 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/GBAJE6800242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0c37e032f053647041194d8d4a903f248f1d447731bd82358120caa38ebe20. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEH742172951.
Essential Artist Collection – The Maytals
Essential Artist Collection: The Maytals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3113c4275641b2be152b7005fdeb7bae88a3a306f9a78eecf381c8af7830b4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JMA020600125.