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 0xb324c9edcc0267ce4841a35a13849d07110d54d934e4ba291549c2dc7713546b. 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/798d22b9-9ef2-4eaa-83a5-57317d342956.json and https://artists.proofprofile.net/proofs/artist/798d22b9-9ef2-4eaa-83a5-57317d342956.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Do It Like Ah Pro (feat. Skinny Fabulous & Daniella Veira)
Caan Dun (feat. Louise Chantál) [Remixes]
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 0xa2025e0747f01f53b214eef630aa0589c8eda1b047c5ead44026e8ca01dd7376. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USDM31792101.
No War (feat. Jesse Royal) [Yellow Claw Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab8f5ffc62d7072d9cafafaf2effb75730fc9f48558a378b69601eff9e5fa6b. 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/NLZ8W2000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21048b63e301cdb1515496f3e80647e4b9eef14e36ec5782491d76b6e76c340c. 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/NLZ8W2000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cb9b824e6d1b9bda576cbef134c03ef48a84398fca8825cf213b7edc5bf4fc. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/NLRD52264034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ec9dfaee6df53b9e3c40516aa939889205ff475c091f2ec05fe067124f02a9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZTV32393546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a1e9adf205f222445de32d86a84d7ee393eb8255de7a2b2987857687d2dd7e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZZ8A2340262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9c58a261765f1b5362b859b07a3866a965f4424ad36bcfda0b8f3c39c4373f. 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/QZZEC2305775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483bbc55101a70edd246ba3740eb6e5ca602ff180a5ba9890e2179c65b115db6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBRKQ2426853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa27c0d2f5a434965445828906deed57d1bdd2a2c8647a70480bb266aa3a7c5a. 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/GBWUL2446816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5715719aefec79727347ad16095033779d2666c8e0463ea4999955238376242b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZWDE2429793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b972abacbf50e9c1dae044b1693fcef73f296ca2d66f3b7ea45e3173e5cbe3a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWV32436259.
Jungle Error (Good Trouble & Risk-E Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc5863c41e2da8d1b863e6fbbbce127fbafb75f849a9d4dbfbe824c2e11e1a8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM24S2007662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cb9b824e6d1b9bda576cbef134c03ef48a84398fca8825cf213b7edc5bf4fc. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NLRD52264034.