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 0xa6b609018e175c88b2024b3554f06900566c4da7aa43aa6e102fb12c3fa75aeb. 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/f2f0fb81-7376-4d50-878f-a19fb1e6bcb4.json and https://artists.proofprofile.net/proofs/artist/f2f0fb81-7376-4d50-878f-a19fb1e6bcb4.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 0x386709d9f6b683f2f048453e642a566b2c957b083b69b8fc319e8d3847ec9436. 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/USSD12201171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd5789f7ccaaedf6b1f0a17fc4c72a69c0a338ecb9b150c3ed3d9e56ed2443c. 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/USSD12201174.
Playero Dj Presenta Exitos '95 / 17Th Anniversary (Underground Reggaeton Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c4a713e4c859e8f5897513cd06808193357b5e7f82dc5e55d21150f2736f40. 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/USDHM1206314.
Underground Reggaeton "The Best Of Radio Version", Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540ed611e2957a395b79c7fa1f76146033fd63a583c8538806b846bd8b0cbc95. 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/USDHM1106628.
Playero Greatest Hits Street Mix, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72017ad3507979d68ff6791213ca40a6194026f015ef47c08b3cd5f9ee3520fa. 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/USDHM1102779.
Playero 41: Past Present & Future, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8281de071aa97ae150203bda4b7f4437003664705db9c15f333f9056b418b5d. 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/USDHM1004462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bc93c8dbed8b2ca14d0b9739f901a8f6f6667129c0b4f4dcdc6292978b036d. 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/USDHM1102760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b75904f2fd48881f46131bc31d5df52de19e281c6fd6eaed05e1d544e60c89. 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/USDHM1102780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc20d44616a63cbe8b08247b21f87ef2bc44049ae46f4b2fcd5c69e7afc02e7. 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/USDHM1206320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b60638219c73d4148c3005c91026b0e8e3e8fc4c3d16876351110870e791aa1. 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/USDHM1206315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287ce6574c331b28a3c8987d6d0df4a1c1f88ae6dc47f762423ae699c254bffb. 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/USDHM1106640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346f13c66820f1ccc8f363894b901b9aba722c592a94f9f0fa92a261440539ad. 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/USDHM1102767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b62c6d40c00dadaa18944a691b87c386192b4e898f85fafb77e0199494aa13e. 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/USDHM1106633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65769c531eaffbf0adca597ba334dbbd258e5462ad81951bb7bfe50f0f401732. 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/USDHM1004461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5393ab4182b81ab105361ee442bd84c20cba4d1f60961c5772b38ba514af1cc. 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/USDHM1206310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f73eeb21b671f06bde0a1eedf7560636366cd579c2c50cef5c6a8a4240d64d. 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/USDHM1206328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101ce3f479e2aaf225383f9f7aae376605bce04af21c543eb0f274a2a276a47a. 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/USDHM1102765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0f4ce5ec8d3530f437b0bb915b61cfe4aef3c66a933b084d097e45119fc441. 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/USDHM1102770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93d3eaa1abcb8d9df5415dac850b0738f23824e0200f6149481964bcc58aa99. 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/USDHM1004435.