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 0xf73f6ef07f0cb69512e5cedb2762e41a06e59839fa0b17ee72c2f5d95d95835c. 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/958c250b-5497-43fe-9289-192313b24cc9.json and https://artists.proofprofile.net/proofs/artist/958c250b-5497-43fe-9289-192313b24cc9.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 0x3f5d179990a1dbdef68312ef7701a24573a9774c1375724dc4b45f065bb1c25b. 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/BK4DA2202759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b0963411445144b802fc5ebef6107bbf82ea74499bd8c2a97cb052fdbcafc0. 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/ZZOPM2236373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06baf244b9b6833224b24dbf9b9a347dd177d7ac5682b3fc21a75f4bf2570bd1. 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/ZZOPM2236471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e04068de85a96672b1a86a29277e45c9f87b7e0b5523cb6d6fe5f137559bd48. 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/ZZOPM2232643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ac105eedd7f5d06fc120a37dc17f0cf1d4d3a2452b76b6856ba01693728845. 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/ZZOPM2232230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faa49abd1659bd6c8d59447b26f7812922560230e736d22c747d7c78d412913. 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/ZZOPM2221915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ef3fa48d916cf51a41a224dd9b344be5d7f57eb79f8e8bbbfffb1f69e6e73f. 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/ZZOPM2110405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0117d0e8ac929c25e282bf18c8c756406ca375e875ac74061ff021d3cf24634f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM7282166923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237ed17744b22448790a47b76b516d6a88d85c87717f09688d90cb97c2d9b0f2. 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/ZZOPM2104903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0084a8343ebb16bdca31501f4c13320074cfee25b3708d03ed9f4c4a0a2e2bd7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZZOPM2115968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06baf244b9b6833224b24dbf9b9a347dd177d7ac5682b3fc21a75f4bf2570bd1. 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/ZZOPM2236471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10456e2b57c229b834ae35dc9b873bcfa328357937e66d26fa1dc951aef5268. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZZOPM2236474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e04068de85a96672b1a86a29277e45c9f87b7e0b5523cb6d6fe5f137559bd48. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZZOPM2232643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2b9809f469bb2266ba6c298301428225afd22992f4aa4fb4de72b83fe588c4. 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/ZZOPM2236476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16177e2deac8b0d81c801b998c1bb1f74472f5e1dca279b902681c991b9279c3. 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/ZZOPM2236477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcbdb40db5aa289455261d9293223fe2975a3f56dedb67e0257ed9b54a7a700. 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/ZZOPM2236475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007a4f5ea6f0399caeae7d1887a9cdb3756b5f6b74ccc8199619ab99b6bff853. 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/BK4DA2414458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fd870ea0643cfaf2c761d9536cfcd14fafefa8672e6d97021af64bd1171275. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZZOPM2105747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9090cd7358e92036a56c57b6a095055bdc08d0b126fa4d4a4b67d66e8c179f80. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZZOPM2105849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881c83be91d3913ef13565881e86bce3d37d5f200063a34255426e25508d4bd2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZZOPM2110065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fafd5ba6f8e26c96b820047425619e8fc7975ce072d6d3e2d045c4431ef8b28. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BK4DA2301280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb320ad6cefafd072d3888f727cc7a9d99c67a2e4608179af2206abfa5aa0c4b0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZZOPM2240184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ce4326401f319284979ff3afba8617d2b2313f2550d873448a16a21c5569f6. 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/BK4DA2300656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ac105eedd7f5d06fc120a37dc17f0cf1d4d3a2452b76b6856ba01693728845. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZZOPM2232230.
La Última Revelación que Diste Fue la Despedida