Z-Ro, Trae Tha Truth, Michael “5000” Watts
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 0x4c92b0678457ec9d135eba410b12905bbd204a72f54860e2380fe38de5bb9539. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb6e2e2c-9586-4b32-996e-8d84504d4c36.json and https://artists.proofprofile.net/proofs/artist/eb6e2e2c-9586-4b32-996e-8d84504d4c36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A.B.N. It Is What It Is (Chopped & Screwed)
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 0x4c1540269680c9dacbbdb67622106baf54a31ac74c66c8d2fa1ae3b7d1430088. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USXQS1617785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff527a61d417da8e9e5d0b0240628526e7c32071ddeda41c64cef34c46bd2bc9. 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/USXQS1617787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd359beb5ca912696df615968773f49e3af05208b34747f3591d0c19f9d584d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USXQS1617789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b339bda98125bc648bf4437dfa9d90b6a11e9b4b82f92687526a56d84c4ebc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USXQS1617791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60293e14ffadd5e23a14db519e8d9b76238d197ec2643bf8ed281ccae1bf71e6. 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/USXQS1617792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4dd9259fe951484fab43dc24fdd6baadf656863176a1a3148ca4de671a1dab. 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/USXQS1617794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9acceb5a9e2d12333a3038da20844b570e979553720f0adfce0becabec47b0. 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/USXQS1617799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0cfe6419c927ff3ec1a9d233a9008bb09b755b1ce3414a67843791a18fadbc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USXQS1617800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5d2816ceb9ef36dab1ee3b8549d50f1d0510bb76171e304e40a518114bf18a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USXQS1617801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa465b59757eed0a87e2bc52a64e89f7ed2f7e84263572559a33e0cf0e3ec0119. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USXQS1617790.
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 0x72cafd1f76e952dff015e9efe06df59965ee263fc4bbb4bf88dad801452a5ed7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USXQS1617796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a8e317ec23487e21d6b1760198609d35c2543e70e2e6a5b26f39bc271488ff. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USXQS1617786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2950dfed8c52f29998a824fb66a08e57f13f36af11d56d55a57e3747ac4524. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USXQS1617788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5fc9d80be294ac92eb8c771f1a4310f2896755a1b065a76e1e1e4c2ab4ca18. 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/USXQS1617793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0c7d764a665ad2e3478914bc038f67d28ac62d6d9c09ab226918e157eb422f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USXQS1617795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b1ec553c723bca96070e86a59b41428f9da2c568db371c19a7a6810e33c3aa. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USXQS1617797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8c7e91aa1f265dda9c8ca99a57fafecba2d57da7526aa57fdeef98ebf1068a. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USXQS1617798.