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 0xf10991026141fbcfed68ec13d703781a72ffa236060df92e92c58d38da104360. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e0da834-1520-41ed-96f8-467734909586.json and https://artists.proofprofile.net/proofs/artist/7e0da834-1520-41ed-96f8-467734909586.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 0x8ebde797f8f26aacf3e79d4c1197633f256f82431a2ec3eadd3eddf579eff1d7. 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/NLCK41091481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4650a4717ba5ca9ca66c0223b56d6ac6d1804b0d804d4a623b9dcd43ef38cf. 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/NLCK41037385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0136c75aa7837607f9382edf868dc3c1d15068794d20b396ec984f5d7da6db46. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/NLCK41037387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4039d9e2386b9cc0dcce8cff72db835762479cf59b5ce0520ba8bafac176a45. 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/NLCK41037391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62606945f2d864734437c8ce12a2ae70f54ddde8a8daf531da2927bdb481ea40. 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/NLCK42227115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15370a42a0be34d0efb7012eb200b4feab74df2d9651621be8ece3a41a242b6. 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/NLCK42227116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c82ba6ef20e32168b9b8560d5084a7d50375305f67ba8c4aab6a3e4d5d13231. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CA5KR2320226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc56060e15db01f69e6f2c3cf2d82d24b8981ea32639bca68230cd6cc2ad8bc8. 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/CA5KR2320228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde486c484131a7f1f6423c80aa4acf2192e4eb494b5afbcb3017e6a228fd08e5. 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/CA5KR2320229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5651fcacf9a6dec768f3b02f78fcdf0079283fb55668a65e2f6beff28cbdf3a. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/GBKQU2282860.
8 AM Roller (Duskee's Freestyle Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a2e3bb7004e8c1ee49b053a147ec6c1865201d58aabada6230c6fa240a5841. 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/NLCK41064864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16504e719ee3b525b9a095c600d580250b924c3067756b84894b4d74b2bc783. 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/NLCK41057752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0256b8f5a04aa89bae4a31f6eb728b231c6d36299d7a62334bc9a78ad9bb9e. 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/NLCK41057755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1266653bd80ab403eeb8a2acc4454d16c5cbe11511c78359f0d378f4a2707c7c. 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/GBZNK1701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2a010a8997bc59deb55b506c0cb84ef81c72d43d86b9a4088c97f03d8c22f2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLCK41031361.
You Should Be Here / Valley Of The Stars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c8eeee0bfebc8ebc581a2559a3f0cb305804b3990f9b20e2f93fdcb68c3a39. 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/NLCK41027886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22770e169544b068a892c853e03143bb1e668a3fafa11ea2a2649f788199882a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GBZNK1405002.