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 0x20aacbd01a79e2177d27ba6edd193e85dabf9b206ae7e98d0a79f8fb53c669da. 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/de87ccc5-694c-4fb6-b9e0-0f8f65c799f7.json and https://artists.proofprofile.net/proofs/artist/de87ccc5-694c-4fb6-b9e0-0f8f65c799f7.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 0xb4f28b9a1d56a62266a04729f1dec95f1fe261a3cc7c9af71e50349da0a2092e. 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/GBWUL2084332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac57ee49e532c077ca1628fa3a8e8461f052103081c0b51624732e88c1508652. 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/GX8LE2483298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f1155e02ee51bcd6d5e3cc5ebfa30e231655c8e7e3e20dbeda94b2c9101033. 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/QZS652459944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3158f28aabad11a79f10bf28a00119a64e74905a05961b5612d64d42119172c1. 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/GBWUL2026504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957d1e8ee747d42761a7e3b438252f2ec5f104d397a7a15a3f38cde63dc2ede5. 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/GBWUL2023538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f1d8f6c03569a67ea8b666f24d7c68d2ee78931f4355dfb9f71ec9b76215e7. 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/GBWUL2023539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad31bf3430192816782cfab2a2e5b68e5d04b025ca5c6eb241732fdd4b3d605. 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/GBWUL2023540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3a0bd86a83970e4ba65b1d6b88e6e5d7359e05499685433ee8f8491e08f9e4. 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/BEK011900323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563795d5928c3083c814fb2681dfc6c1079963c6bb5994a1d51d2b02721d9d23. 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/QZ7R41950501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d8b347f45d14664c222911f3375c4cfac260020edeb5e59b90f193ce8a8b0f. 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/NLF711800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5749157f43c74dca978c576e3538e4f158d053de0978c4153f3eab063e5b72e. 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/NLF711800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7fef8bd19a80268e16938b1b6cbd838699e575540bdb252d77bf89f992bf62. 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/QMEU31617731.
Open My Eyes (Empire Music Festival Anthem Guatemala)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3b3009bdfe29417d35f8e93e3eb2ae8efbdbbcacb6c66f3997bfffe5277010. 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/NLS241600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fe4cdc569bcb9b004d3c199e06c778f74ab88e9d067c5d5c715035813f9517. 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/NLS241600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a739874d5dd29867bfc2f15d2891b9b5299495433ccc3a49a67c16e41b50d5. 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/USUS11500108.
Skalavera (feat. El Tambor De La Tribu) - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37857e046673155c57bb10bbd114c0ffe4d99f0e264abcf8b4f8c88661ad0664. 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/USLZJ1540906.
Skalavera (feat. El Tambor De La Tribu) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e19aa8b96b015df51506e92d16ae0a0ff7349bac843cdeff17afa680e682690. 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/USLZJ1540908.
Touch The Sky (feat. Flaminia) - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda20f37d8a66257eec70233b5b56b53778a1f3e9afdf269901773917a8ae2f97. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USLZJ1431654.