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 0x3f1708c5cd27e88dea36fbc4172c4e0e76fb8ae63fad68cf8d1b974d945029ed. 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/03f6b615-4a63-4058-96f4-550b2e4ef075.json and https://artists.proofprofile.net/proofs/artist/03f6b615-4a63-4058-96f4-550b2e4ef075.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 0xc56423c96f133a6dce36bc365725351966efd45cdbd200e5132832c991b74866. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZGLM2129400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e32ffa547f903357b5fe007e9e7a2b69f4cbdd28f38e925650dbfd9a11708ef. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMZ92110502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b68be5b8fab94af49008268c88ef8d5aa916d4bf24136c7a4987dcdfeec70f3. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZ5AB2296583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354f862f69b95ead92558201ee6103491317dc4ff0e52f5c05b3a54af9f9e21d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNJY2214467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127fd1b805dc27acedda19b33ec2d1e568d118882cbed066f5d48683d128bd5a. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZW9K2253304.
Elefanta, Que Ninguna Se Quede Balanceándose Sola
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb90ed2cd2cb71f817856c30b8167a4dff62459f3dc3e3df540ee0c08368d0d4. 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/MXF012100061.
Black Panther: Wakanda Forever - Music From and Inspired By
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b24007be6f6521bd096d12c89d0d44db20ca5e66e78463cc27c9413d1276501. 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/USHR12244834.
Sirens - From "Black Panther: Wakanda Forever"/Score
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3cb0506403a7a99341be217f89168e81d84c7023b4eb1acd2db3d988dade6a. 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/USHR12244867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05f4ff2ae0e7a809e4210ea9dece1768a4383e71b2befda751f3cc620e37877. 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/TCADW1836345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea2627d6bc1cd274fbcfff99bc301dbfc72a5d5b5b304389f52e538e1a686ee. 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/QZ5AB2364393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00b6f9259620bbaa5c45cb92bf9dbb902269e408871a8b42866adec1cfa1b77. 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/QZ5AB2364398.
Mi Lado - feat. Alansito Vega, Poté & Mare Advertencia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed9d53f3506f7bc65fc5eea13e3f19fd9b46e6de6b3d6555772feed68fe3ee5. 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/GB5KW2500623.
Tayhana - feat. Tayhana, Moonchild Sanelly, K.O.G, Mare Advertencia & Mélissa Hié
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce74e3204f595101f95f8963887933a18cce9bc7580144c23b05d2ae04297cab. 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/GB5KW2500635.
Ofrenda de Sangre - feat. Luisa Almaguer, Mare Advertencia & Alansito Vega
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd962476f8b58bbc23f49a5d5da14cd23cb024242f315b41876ce8ff6077205fd. 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/GB5KW2500634.