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 0x1d9874e8d9c483b4598f4258fc495a093dcd3b0ee413611f027323ec684fec76. 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/b04fda60-9d2c-4d33-89c8-05b1cc04dab8.json and https://artists.proofprofile.net/proofs/artist/b04fda60-9d2c-4d33-89c8-05b1cc04dab8.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 0xbdc4c64c0edc7ac398d23d35fc5edfa3d3aaef140154e85526b95c10e0dbe5df. 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/QZTB62338338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4877a0bda4948c101bab18280d20c96eeb9d70bc1466b1b28b183c4c059f1537. 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/QT2W52400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06d5157ee740d46332008f207e63a610c702cba4705ae4a61bd17c964b906d1. 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/USUM71511992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8e0dfedbda3e7d82ff8ba197b2b846132fba1581e18fd704f08be1b912233a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUM71804842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c57b8e1a103ea340f606ae16938dd568b6803273ab679141888854f115c210. 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/USUM71804843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839123e77d1bae8f3dc7d299375cd34bac807b23d673d78de021ba99649c9244. 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/USUM71804845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf7aa82d1b2291e62ab70ef8925c8f382ce174e20e0e2d40fb06bf0dda04702. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUM71613684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdb92cf9eda5f22d54fbb8d5b73d66812c7ebe6f47069a465fca361c8ae0491. 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/USUM71704514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cc7ccc737a1104a928ed68a5d92e07426d3d485d22f5d6b7ad2204c1724ae1. 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/USUM71804846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d61db5e5202c161bc3aa34487598b0ddf4bd817b7447915513c82f70dd99326. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUM71501597.
Cerveza (feat. Chingo Bling, Toy Selectah, Zues)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b3e882d77ad66f5b54dc019e6f9417c9e07f765f06322181e1fd9496403d2c. 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/USUYG1039907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa454947782e3f94214550fd37b310cd6d6244b11b866a2a97588a433f3ee7b0c. 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/USUYG1039909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9438611daa0e7c741b43aca1cee9bb75a7fa53c590c0dc0c5a007480cdbac4f2. 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/USUYG1039910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f07a2cef202d8c6ae4cdcd55a03e4b1af4dfd7e560127705af9e2bc2440a1bd. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USUYG1039911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a69da5173a8c39cf9374c2e5d1b75f073b32a7e947c44470e8726381b759d8. 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/USA2P2502004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef45e421ba330f64fbe50b73428ca7d52a4b2cdeb89156dd81ea60cd30682b1d. 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/QZN882533525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30962aa33c77e751aefc5ef7a5d4692535b291d2b1e47df9a0382f2b19780c6a. 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/QZN882542336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdefcf47ea54f462e5eed1bb78270219bce7ca9d023efd5f903527730a9a089. 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/QZN882507192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdefcf47ea54f462e5eed1bb78270219bce7ca9d023efd5f903527730a9a089. 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/QZN882507192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36ccea7911d1a3d8e2f3bd4a174a6528444aa066f2898f666797a8fcf71de54. 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/QZW9K2404235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8702a6a9c5d0c96a21b9e6aea1cfd2761ae1c45334730ebdd4fd60d1a16c51a5. 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/QZW9K2404234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8510dd22adbe777c454c4ef4262c6aecae4eb2932c6a140bde3f8a5fdb166eee. 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/QZTVM2419622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cddc708c4503e268c88c06477c0773a8f6646bba9742bc9ef72095b80afb93. 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/QZTVM2419625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ed43309154d8f009dac86720aa907b35494a9a99d1cf5b4757fcacd42778d2. 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/QZTPX2483090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4b4a3959a34a5cb2fe5dd2d8499aeb4f4fec75d84575ce49004144cec1a99c. 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/QZTVM2427061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6bf0290ebcc248459d2314c85cfca4478341905e13909379d386ec563ef0f9. 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/USUYG1544132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bcb7ebb18271dd4391f10c7af3dfbcc4d4dc0ff11dd6bda518b3576541dfdc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USUYG1529029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab6c13348ba3a5976062243ec9458008fe6812b89b4269d385e2acce8d8c3c9. 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/USUYG1522120.
Juana Marijuana (Remix) [feat. Gringo the MC & Tino Cochino]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0414a5f8e99d14e513a33920b456b8dcbeec706285030844ee9bd27c2a2b5609. 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/USUYG1446515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb193d05a085167d8cbe6c8a4af22dd0bf801fcef3a080336efc97efaffe49fc5. 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/QZTPX2181171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d13910051db4d5ad1b419ba8231e65f1243f0142ad30509767ada2f2176d15c. 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/USUM71916064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aaf10ba21e00f72c9530f906eb1aac5bd473ffbcc8eaa1da658cfc9dbe0207f. 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/QZ5FN2416411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aaf10ba21e00f72c9530f906eb1aac5bd473ffbcc8eaa1da658cfc9dbe0207f. 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/QZ5FN2416411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87809d71fae92ec470ef1891ae20d310c34ba38357c3c8caf077506d68a2ed1f. 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/GBLFP2028160.
Arriba la Cumbia (feat. el Dusty & Tiano Bless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa359dff03b8499c9b1bf06c9e4f955cc339314620b37f3ff53af311def75e29f. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:27:49Z), 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/USHM91737304.