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 0xc4d770f6d5154992bce2752b9064c5c08013c62f6a62a0e46ead4bd1961029fd. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e739286-1145-46b3-81fc-add868752adf.json and https://artists.proofprofile.net/proofs/artist/2e739286-1145-46b3-81fc-add868752adf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A World With You (Dreams Land Festival Anthem)
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 0x8025c5fdf2fd1866cc8faee1f62704521b66f7fd4bb81662662153c5dce4c0b5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CA5KR0026212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dd933a276e88c5519f895d9ea3e9091e1c3c14e96208b7e68f71b0eac6f0ca. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/CA5KR2318769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa950bf236e8289fbae417265f44a500087c9e97be318450346bb7e9685e7cf1d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/CA5KR2352044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e39e5eecd0890cf90776bc80383d123a91e13c55f329d40c1515565e45c7d6. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/CA5KR2379306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c49a0ec808a7990347f05151b001ff4857c4fc0c26137a2d550d14b7bf32e6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBKQU2395814.
Life is a story (Bass Squad & Friends Anthem 2023)
Life is a story (Bass Squad & friends anthem 2023) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7617a605289dfb4456b2b485f5f2a3597558b2178e0c84090091f6892ce02f30. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CA5KR2402609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700c66c922875b479873cb98bbbfbe2d9ff4006a6c4f5db2c82375cf699209e0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA5KR2449286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbea03d04c17712ab9caefb47746fc01233cd44553b95ab1eaffe6e7cc7ef85. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GXD7V2292378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879937e7329ff35c30e2585352f4f7f4ed07d8cbf770507162778b4467a0fece. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/MXA3V2402098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76781cec3ee2441f005e514911c02f749ca807a037129d974691c7cfaae24173. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/MXA3V2413173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479f7793417701be39251936584872495088c2b071eccd729f1aac729ccf96a7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/CA5KR2516282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996cb10380f00e3c6558a4a3924632ffbd878eac47cd6e52cb4ade5456acfb49. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MXA3V2426328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab4d7d534923c0efb9ab9b43fda891b7d247c150b50cf051964da2a5ab2710a. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/MXA3V2431262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559e4d122efaec9a03977696d40eebbf0e64eaa3a7e0fe4fc18808f086f9d526. 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/MXA3V2442972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5a3ee3f86be7901f813600a0c3fd430854d9446d24826f212712f2f3c30a98. 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/MXA3V2449361.