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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5bc33f0511d5ecb642c6e82bd220db0aef9f9ac4743f76a27e6fa7f50ec998. 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/6d713cca-b45a-42ec-aa53-aea1ab3db55d.json and https://artists.proofprofile.net/proofs/artist/6d713cca-b45a-42ec-aa53-aea1ab3db55d.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60a240e7f6567e40fa62199fa5e61425a9771fd8a3acc423c440eb717710f53. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:49:44Z), 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/CAM460439028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc92e6b3410e6fc2058b6183d4e6efe6715d9f77e6d1e859856e8a7612d592e0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAM460439014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe835c60606861e14d1fb00e2c76b45b0a13f448826f83c891d368c2c5f6237b4. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/CAM460435720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60a240e7f6567e40fa62199fa5e61425a9771fd8a3acc423c440eb717710f53. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:32:48Z), 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/CAM460439028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60a240e7f6567e40fa62199fa5e61425a9771fd8a3acc423c440eb717710f53. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:20:05Z), 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/CAM460439028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60a240e7f6567e40fa62199fa5e61425a9771fd8a3acc423c440eb717710f53. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:36:43Z), 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/CAM460439028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa7a18723359db8944153e622371cb5d3ccbe0ec3abfceba4ac56f699735251. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QMVRR1900367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45591cf7e50dc018b1162d6122149b2af7134ca05d9f889c9ebdbd6f329f70ab. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:07:04Z), 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/QMVRR1900309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666c73abcdb6061aff18702ee548f051f6dd9b49bc40421fb3348f528c90515c. 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/QMVRR1800065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d7480de69d06bd6cdc66146cfca33c13bb98d3db574eceeb4629281a02f821. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMVRR1900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceef2d2c21482fce786a9033c9f26c72e53908152d39b2e269414a763b63873. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/CAM460439668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07039ed5a5240c4db076efd26682d3997bf2194a082f6421f96e1adb558fe17. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/CAM460701678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c9a2b5853b4e88ebdce1efb6a1963fc1566738673200be2fc7684b68c0cee2. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QMVRR1700413.
Die 50 größten Reggaeton Hits aller Zeiten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ad0c8fce74a37b23022dbe6a3aaac9e04bb3f58428c8390b2347424c324cd9. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QMVRR2000701.
Gasolina Culpa Mia (My Fault) Soundtrack (Inspired)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe835c60606861e14d1fb00e2c76b45b0a13f448826f83c891d368c2c5f6237b4. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/CAM460435720.