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 0x51803e39131674e2fad9c026122da417c6bfc56bc7a7090d55421337b260a5c6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7384f021-90c9-4eff-8b71-a1c3c043b93f.json and https://artists.proofprofile.net/proofs/artist/7384f021-90c9-4eff-8b71-a1c3c043b93f.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 0xfdcaa8e20a500ff334e3cdbb92ac17a082916e1ed95731ffcb3b7a734855f41c. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QM4TW2141916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c2325a5e33e5dfaf7cee91d429ae4f58e4b147a71df0cc7fc08462129935db. 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/QM6P42106272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9a7e65760f1fe00bae869c72adce1403ab1c9ad85d9b1e124bdad260e1d7dc. 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/QM6MZ2199153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5d04b098d3686ba0cb14e65f3062219a04ba0d423a0b021f5aaa7cc8c5f8d1. 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/QMDA71864117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe017c62ad0d3f179d9321be2c2f6cd33da490998a7213da877df61ba07ff600d. 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/DGA082295745.
Guerra en la tierra (Remix by Amable & Monoculture)
Guerra en la tierra - Remix by Amable & Monoculture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86db03fa5ad474a51a2006103ed62ae822d8f91291d41fa8391ec574eacf9c5. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRX762291415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0fb833e34e8e3a77be0f099e3f27791b7b9051a40c45f67ed94daee80e867d. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QM4TX2118515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcaa8e20a500ff334e3cdbb92ac17a082916e1ed95731ffcb3b7a734855f41c. 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/QM4TW2141916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6299b11cbfa4ee0a53aaa3e4d325ab0143929652fcf6540337f863e80d788d1e. 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/ES71G2144243.
Premeditación, Nocturnidad Y Alevosía (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3953a14a65f137d2c8e33b3140953fabf8aa61183217b0f8522017db32225a8b. 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/ES6641600012.
Geometría Existencial (Los Pilotos & Coaxial Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d458fa9e7da29d2755e87309e359e1ddd2ced38a3bad7c4c2dd322b04ec0f5d. 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/ES6641600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc651a2e00e9b00df4ccda1558180be90626b062e5a471cd8302aeb44db3943. 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/ES6641600014.
Música Contemporánea (Alejandro Martínez-Kinski Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecaf7f033e511773927c466b798322494116ab74d9f2b72050501ab007b61be. 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/ES6641600015.
Crepúsculo (Russian Red & DJ Lloret Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee591540648622b9c2f1897482c62e3b1e3559e2389aa2dc845574e46ca7e618. 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/ES6641600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735090e3dff04453a617a1137fb850644ef565168903f10e897405e2d08581c5. 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/ES6641600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c17f2c350243f57598d670b06ba27307edcc20fd7df106a1579b54cb2f9700. 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/ES6641600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fc58450cc53201cbd9632fd04b1da72224b51b18c3362da307c4e9103b74a4. 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/ES6641600022.
Poderes Extraños (Versión Piroquinética. Triángulo de Amor Bizarro Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661be786c6d532229eb1e554d1a95ccad51a0c7415a424f9f29c08d1980e48c6. 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/ES6641600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7888369675c0c1a0fd9b20d80cd65f32d3729af3513bf080331510411891119. 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/DEQ121638823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6cddcf37b6b75a1f49401be3526e6a026a7a92bf177a0c9fd9835e9551c610. 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/DEQ121638824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa371bf4168037e1804ff4d9a4088ca8369f4baac7f589396b387294045b7fd25. 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/DEQ121638825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b153816781c4621419ba88a7141a6207e98641d73fcc5e2248725be9ed2a0d. 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/DEQ121638826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045f70980ad53b20debb53ce4c7cd107cd98255252acb9782da784d5cdc8cc63. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DEQ121638827.
Contemplaciones: Homenaje Iberoamericano a Jeanette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915e90b7db12050cf975f561827acb8b493fab51ff1fdc96708edc0b3ba6146a. 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/FRX991586316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebcf906fdcf809619703634a4f7354d9b38d10d64e62b259cd994816e1bfbd3. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/FRX991586309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcaa8e20a500ff334e3cdbb92ac17a082916e1ed95731ffcb3b7a734855f41c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TW2141916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9a7e65760f1fe00bae869c72adce1403ab1c9ad85d9b1e124bdad260e1d7dc. 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/QM6MZ2199153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0fb833e34e8e3a77be0f099e3f27791b7b9051a40c45f67ed94daee80e867d. 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/QM4TX2118515.