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 0xf5b6869f3c8924d524f385f276853a2e5cc1bd57ffb9c5b5d2ea67f8a17ba9fa. 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/b7cf8213-b89a-403e-b3cc-feefa3ffa7cc.json and https://artists.proofprofile.net/proofs/artist/b7cf8213-b89a-403e-b3cc-feefa3ffa7cc.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 0xc822c9e2c9a3081f6d4fac69541e966917f1412e49a6499c6b1ce739da024bf6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZDA62040758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4485492c959714d8c51d8bfbccfd8b62b5694cfd259ef6eaf781da14ba0453. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:26:51Z), 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/QZDA62040761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48af910b68013b17a7019748267cfeba3b3a5c5ebe6a4cc87c8bfef96b1ab66f. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZDA62040762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c34d4564618fa74683bdf892e7f594c01e8d08b3c152715a16e20be4397d41. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHNC2096569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc5ddbb047203aeb835a9918a562ab71af34d157d483bc1043e26a0c86cdae5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHNC2096573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc79c6901ad6b127b4824ac8b4a627702f9b14fc24b584b18a34c354c7db11b. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:41:46Z), 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/QZHNC2096577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527b7a7f57ce32e34188c81e449a808d6606cca8aa02d258e6add793b85a56ef. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:12Z), 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/QZTB32257016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c4c2f59073abbda20a12ce243514d722508952e98da1d250d96f8bff0d7ae6. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ZA56E2306461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aebee1d11f7be0faf3930a2216e9f60e89656d1f60eda0913567a92dd95d99. 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/ZA56E2306463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd062df8deaa196502a85454659f510b2a95372fa60a0a2b95adf61500c7158da. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ZA56E2306464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f4a890a5a7cec35b4b2552a37390f2f23aca8e83d20c4a09c5a341c820af40. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ZA56E2306465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36878b198020233af89c2e50013e3c38e9f0a9e75112e39260a1e2deea39c184. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ZA56E2306466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24daa6d3e0c72ddf401dadce6d9c630ce3c77b027eadccbffbf675210a1b0126. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:01:21Z), 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/ZA56E2306467.
Keep On (feat. Cya M, Tariq, Rex On Keys & Vito The Guitarist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e779b6e040796e8135d88b8a90080bb21fd177764e64304197eaefea581351. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ZA56E2416809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520757728044c8aae17b6eb07ceefcac3889f35f3783004579f2f6ba81d032af. 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/ZA0I41900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520757728044c8aae17b6eb07ceefcac3889f35f3783004579f2f6ba81d032af. 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/ZA0I41900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5443ff6a4476f23ebda068cccd9633f4c50fc6c5419b7d011e497d49d51fe0ef. 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/GBGLW2301333.
Soul Jazz Records Presents SECRET SUPERSTAR SOUNDS – Scraping Bubblegum Off My Soul 1977-80: Punk • Powerpop • New Wave • DIY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4185c4561a9d6b35669baec7fb3ba9d06636ec0accdae0b3aeecdc61a49e6d59. 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/GBBCK2402024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea02fedcbd6377e158f7a95281022b8894f2272d8c398960c569a118f3b1ae4. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMFME2364722.
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 0x711c9452a139a861153c88fcab854b031039d3a2f8d9d1cb54ff4a2ff9cb52b0. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QMFME2364723.