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 0x3ecdd01974eb62261e9bc0e07b82c2b672b8cd304d54f2015627039a2547a8fb. 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/d654bb31-7fdf-405a-9295-917efa0489ba.json and https://artists.proofprofile.net/proofs/artist/d654bb31-7fdf-405a-9295-917efa0489ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Número do Celular - Ao Vivo em São Sebastião - DF
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 0xbdab237728631615dca98f0ab821b748d38830abef9238119c97c00a2f6152f2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BCRXC2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d421275c845193d30109bed952ec1562ae199578f4c4784b08d44921b3b28c. 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/ESA112310927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe590e38c244dfb86386a6388771fea29fb21227152345bf4ccb1f46142729a. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ESA112310928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d1eb2379137f634d50f1917dd894c1e1ec2e8fd86bce87f979a87c2b16a56a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:03:33Z), 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/ESA112310929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc73683927ed26b3b30e72338cd89791a026616194a299be9660f98b8dd233c. 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/ESA112310930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec28039d187d5b09e4b3cffa01e4626974e0cd05d34c9e00907d731977ed1c1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:00Z), 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/ESA112310931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12da4c90ea1dcc61c412b51a76e9d029aab562e3564a7cc7a3ddd2cee883738e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ESA112310932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35ea98ae28cc51d583b5c5ee6f22ff5dd3fc2e0b9e24cce60cf439b37287a0c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ESA112310933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a2a51149174e433546f51999197e5777e3d2279c2d1d7ba038fff083dc917b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ESA112314760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649fd5e1560c315f15f635795eb219ca47ff9071936e9e9b00935e8976fc6082. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ESA112314761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc896827ee0172243618ce631b57b9b61daa7dd8e56425b845cd0ff81fe867960. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ESA112314762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1debc6c4f0e5cb305e905ecb5c1b20e921d8bf412d563a2ecc43729de4a6bec7. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ESA112322775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009cab8cc914fb5a13909bda5c208effb43ef03de34acaea7f71f91ac29d32ba. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ESA112322776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b6d90a4fe6a430f4a286ba7bf9bb688695e9285be6d9ef360212446c1e00c0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:09:13Z), 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/ESA112322777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e0e40aab6d67b6736107b09cd5cfecb7171160873dc2746e5a7c53f0ae4f4b. 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/ESA112322778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabce324a62eaa25ed0c6d82c87694ef2e4ff5334df97b8091c131be4d0eef42f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/ESA112324061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ccdfb96285425db4a70b8e4e6844714a15808e8111bf6f103fd83494496957. 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/ESA112324063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234a964a03c49052e9b8f273807b40de2d6b5e81587b6f600b871947641726d2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ESA112324064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e709da1e0278c2bc442f1f1d59f2d96f2654537a07350c6bdb37ace2066cf3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T14:04:49Z), 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/BCRXC2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97db6900f91aaa364c9a5dde9791f1a2efe8a2ada551eced530c60aff0e1f539. 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/QZW9K2450625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da75e9268292b2f4a9e1fd6e79dd822e880cc5652bc7fd4c7e70c54915a9592. 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/ESA112571172.