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 0x312fa44d30128f23f5f598f7776f4008f3337a73cecbd1279360fe16a355cb4e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/200c4c68-c155-4cbe-933d-bc7ee92581e5.json and https://artists.proofprofile.net/proofs/artist/200c4c68-c155-4cbe-933d-bc7ee92581e5.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 0x3170febf9e5413fc3de8c7875897e02f9cc41cf442b1215d3061f533e7a75d0d. 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/USMH92333027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bd3f4fa2ed843bc2a48a9b60a7bdd53b24c7083ad2321013a9392fb3bc4501. 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/USMH92333033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcad204c6712be8fa0f0ddf8a4647c75f7eef55ca13103d3ee818ed8f28e761. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USMH92333054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d7d3bf866c4bd20a113039fd79cbcb37f13945765a74434fbf41481362127f. 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/USCGH2153990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1799c1a3a79664da690268aeb4a7d777ba4198de78da6bd415a336c9f0836fdd. 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/US3DF1943121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba306a30671a637651d68a8c53f803c6c38895af3cfdb7432b4494ffe69b8dee. 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/QQ9QQ2400241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d39357047e3220ac01eb91a502d6bca3916b9f271e648ddc386925ec6fc109. 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/TCAEC1915601.
50 20's (Cincuenta Veintes) [feat. Los Buitres De Culiacan Sinaloa]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbce6d767bbb19207009de1d582b9fd935b1ff699e1a7273021bdc27dfb580b7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USHM21898514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e53fcb31d67ccf4b0a6f3985ad686ee94c48e707d63130f5a03081b3190c3e. 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/QM3DF2421242.
En Vivo Desde las Oficinas de Hyphy Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11435ea0e8f8125522fb426bd5a0b532e7d64fe412e11d1bbc8a16410039b10c. 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/QM6N21878255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b282623d1bff29cc5bdeeea47037b8bea6df9e10790e86d54c51b2a4f0e09f. 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/QM6N21878256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7343fe908198d5cbcdb5265a34405619a40be4d9975099d8d66a5a1ca73968cc. 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/QM6N21878257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b063f98c1d87cef2160fe3f02330d086d2ac007b6e65c414de325c9120bb413. 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/QM6N21878258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619cc620aca397b76a207e5edc0d64e38d0381e5c810b619eee1d335eb6ccfd3. 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/QM6N21878259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e54fbf3c2e0c31767723b8a51ef50b478e3635f93c5ea444fb927ee609fdf6a. 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/QM6N21878260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f5c0e76a3f986165d971abea19893964ead48a7b33dc861d93e25e12e16ea5. 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/QM6N21878261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d05a2b7f8e88ac5a7d6a16b6c176dd94d985f493550dd839384067c2c726558. 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/QM6N21878264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524eeca558be2965988fa59b8037272842d097cf76dcfa408a8b2a9369211faa. 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/QM6N21878265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3640b80f3ba30969ca6818d1d5d8ddd80c7f9bef13c9f2fb673dcdbaa86c56c6. 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/QM6N21878266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fa4132ecca37311b28d0d0743412382ad8fa169273b32a3b57991bb5675491. 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/QM6N21878268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09341ecf5ddd82ac7c9fe1b68f9357bd41957440732ad6d81522d7520c75bea7. 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/QM6N21878269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ceab826647a363b087c5380d58c4d35629015d36797210a2c8e4e3d62ae963. 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/QZ85W1700065.