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 0x6f983efdf8b35a79696786212a9bb6cf288bd7cd699e9f51a8695205303c191f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3218b2c-1c33-4973-aa7c-3fede040a7bd.json and https://artists.proofprofile.net/proofs/artist/a3218b2c-1c33-4973-aa7c-3fede040a7bd.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 0x776591fb727bf587c0e09efed385f9a4225a178267f93144c49ea32d27dea2ae. 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/BC22C2500028.
Melhores Amigos (feat. Nader Mc, MC Du & Hugo CNB Oficial)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02faa4cfca2a8b77ac336ea4ec82ee7346547e06bd2ea3842551347f4801fb2e. 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/BK4DA2455979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac0b7318838ba6547f66c554d82446f12802211cb984d08c7a8d8d03a9ac5d4. 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/BX16D2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa16dbbf1fbb537bc4a21d9d2801918d779525445d597582707f7508284c3e59. 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/BX16D2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5086a1fe0ce8dfde61709dc8e2639f04cf00be579c14565bf0547f549dbbbb. 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/BX16D2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8ea44aee6589efc4e55c97f76f254f189a1828171c087fabc842809b42be4a. 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/BX16D2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cb4a5ac98fd0099cde90f50c01cd0151fab3fb6b7feb222306606c24c6f634. 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/BX16D2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b226fbe47d57bfcc90d4682702522393484adf0e2334cd12d0c02393607491. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/BX16D2400002.
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 0xe1499ac6ff6971ec1b3eb7ac7a7cc17307627cdb21373fc69633a05c9cf6e4d7. 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/BKJTG2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489c3872997bde00cc7df3fb0ec0f61ddf52361c5d7cb8fee327cf7cfe84fb78. 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/BKJTG2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472de8d64d95f75398eca13b54bbb7cf2ae64a572481a02e592628f60340e22c. 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/BKJTG2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dd3cb319b5d397bc2e62ed2ded8c9039ee3bb4b0229bc664846eb850e7b3db. 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/SGW502246909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3f14d5580321b7f695c2ba884ace17eda661e0d6a135882c97a3d131b94d51. 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/BK4DA2502895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d58a8c24d21ca100a4fa244cdeca381663f6c5de6887ab35cca039346dbb8f. 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/BX16D2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fba6343962173e7f58efe455b721e0f72787a60702cccb3d46bacaedfb39ddb. 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/BK4DA2464396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7d5a7fa880a08033b8459aaceb112a979cd71631e6dc63c5e1267b1cc3cca1. 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/BKBSS2401337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f4ffbb00e73ae515196215960cd73e0a00c09a63a744c7861667fc600f4cc8. 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/QZW9L2497349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2a34559ba9f6df647a341264bd4df6298b3afef1a61936d68d652c6ec8b041. 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/BKPLG2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5389468c2d08d8090887a97c6777b02193588c03de6cafaefacd1d438d13f6. 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/AEA3A2267666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238b85bae5ac30e3a3611a8788bab4c9a53826ef5d5718d93b73ae265622a4ab. 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/BK4DA2456532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf80086863748e205ff3dffc06a5f9c760d319c8c52b2545675288556b2915f8. 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/BRWMB2401722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b5f76fac520df168a5e89c1c588731b640a9824b0b67b93059b4cd4ee1cf27. 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/BX16D2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8716b9b381e087dd3c1f15ad2a8fd8ad92afa00258c3d2910f897bfc2b5d7050. 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/BX16D2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542aeb5041558f267b3a0dec8dbe8d1157eb929fa2cea368c1f0e1c203847f73. 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/BX16D2400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d9be2e80184c99ac34bc39c8cf24d40a1899867aa772a9e44731ada902d01c. 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/BX16D2400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e78047dd33887b51a5bc2e74281e7506e04963189e4a437ebfdba1541f791cf. 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/BXG6R2400694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45282247ace44b4730b1c625960c73b2afba22de3de9d3798bc4bab69ebb3199. 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/QZNJZ2424018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9386f815913b1ab3f639004c103702fe9088d99038e8e2d3f02fcb87cf021ae. 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/BKGKQ2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb355c24e665281bd8b020bc05ca92fcd103539a76859765dd97ac28eeadafa3d. 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/BKTC52300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05116352150accb44b6e82eb3e98555bb8385d8f1b575bb1b2391ff0b9f740a. 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/BKSFR2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e5ea90028d6343ffc8e8827112c840559d0e6706aba7a6defea5ce45cf0a23. 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/QZNJV2472513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3349877d0b14c0707c0f7559288ea9c8257477996d507efdf166f7b67c5c3bf. 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/QZMZ92485134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a820ab473973c75141660dafaf00504a276c46398cb2082d5ac643a3ea1bcd3. 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/QZNJX2120949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e3b316961ee9751ce6c5cd352feb8a3fcfcfdcf95cd55dd2707086303a6e7b. 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/BCZY52100012.