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 0x45c113a3a5e1bf7205835b44f029ea44812cb3654367ba080a21aad37c9ecb73. 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/0f6950f9-8309-4f54-b254-11cdc3ae470d.json and https://artists.proofprofile.net/proofs/artist/0f6950f9-8309-4f54-b254-11cdc3ae470d.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 0x6d8696825333b54bf74f22020144369f7b8f8b178c86f5957cdf5eda8d40e4f6. 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/USAT22309991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4318000265047b08795409e69b5e4a5a677c8ddaccce4563fc2222fffc0d41. 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/USAT22213507.
Culo Chapa (feat. La Perversa, Quimico Ultra Mega & Haraca Kiko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1353a2aae36285f9e8b7867196d3a6e7d89c057dacf7d8c74348aef98b64022a. 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/USAT22201143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b600c5ed6671861c87fa0c3e051ac3829e53c5d024b736c7bd65f453a862ee. 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/USAT22106335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ffe1a190ea9b1cebacc84b847223cd2afc8b3d023ba5ea7725233593e6415f. 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/QZ5FN2116484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf390e853f7421d3c20b54db9add6a80f3e393125a6f38e927a8799179c75d2df. 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/QMGR32202398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4130fa32108bf7faadc1182ed4b393d584bb50b4acc991c4e008c6f6c921e9ae. 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/QMRSZ2000812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b0888aeb3b709e883e266d427d9ebf29c43035ad14ee290e6366fac3336977. 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/QMRSZ2000811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb28789e272bca0ff5c67371e7b79957ae8cfaaab240bf6364e3a48700ebfee. 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/QMRSZ2000599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b0888aeb3b709e883e266d427d9ebf29c43035ad14ee290e6366fac3336977. 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/QMRSZ2000811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb28789e272bca0ff5c67371e7b79957ae8cfaaab240bf6364e3a48700ebfee. 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/QMRSZ2000599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25a5b8f96ee938ed4bc5af07de669cd40561e4d3e950d437e86129d0dfc236f. 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/QMRSZ1901045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c96c643f9b4371075d69ef2e7439c38cf2f6e6c2cf5b7cf976220b96cb7238. 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/QMRSZ1901047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11f47063ca41d66c459d0e67cc3d0ce3e2d14e12d6b6c60103335b99189eb2f. 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/QMRSZ1901040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99236c650e35d3bebaa92653a902034e701ec050267574eefa255ec89d78bb9. 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/QMRSZ1901046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b1371d4c332ddbb326798386345a8f8d1e2dd8b5e2c0c2350795e923adb6a0. 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/ITLVW1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11f47063ca41d66c459d0e67cc3d0ce3e2d14e12d6b6c60103335b99189eb2f. 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/QMRSZ1901040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31ec0096322a1797f128b4d03ec34ed34199b5fd0abd5949bcb971ad56a2417. 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/QMRSZ1802803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ac999958a7bde9f90c99304f2cf014adf46011ad8e8f5e197294169d2e3081. 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/QMRSZ1802163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a5e067ce015d0f1fb5f8684a0772be408c2c21ed9e20237e4a0389245549e0. 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/GBUM71803085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e48e17e3bda1693d4eb9b24bb5b6d8f3faa49012745bdc5f708ec656e1e336. 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/GBUM71803086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dc503b87e2541c677c67f69c085bca732bde4b1bafa924323a71669be91b9e. 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/GBUM71802023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6056405198be593d91d2d12255dd85e90a125557aed367555224bc75fa52be4c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:58:43Z), 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/GBUM71802167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841afd77bc1393c391e5e37f48321a37dc9843e8650620eb24c98cf5ed928a78. 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/QMRSZ1801805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4dfff1ca1ae9bd7607a9048f6bd2005dc60b451ab005d3ef40d7a385cdc9b5. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBUM71802406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dae393e72bdcad47c9de092d99db350a7a9066b839ebc721a9fce8f77eb1ff2. 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/GBUM71801351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f23aee211d97b57d8ad3d32086b78e4722ff75cb792e2cc582659f222f3579. 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/USUM71713305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b57885f8d9ec6db2b062e58d7dc161a3a4a3c8023053a6a4f260aff25d75e27. 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/USUM71712345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78acdf80230df1238c0079a8aae94c2bc16f92402ab4e1446195c6797aacd57b. 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/USUM71708683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f169ec41b3f7ee73b5c55eef2f68d97ee2cc8d6aa5a4ba4ac953c572e372ed. 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/USNPW2400904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be24c19bd8a3a88b8ad422d1b8ff6ca837a9cc7ce539a08fcbd6d2afb773803. 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/USAT22400730.