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 0x7a66df8cc610191bb620de2c840ed8f0ca4264b3dc8f8bbb390cdc0be8662769. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/363598fd-1960-4243-8272-bcc02b2aba6c.json and https://artists.proofprofile.net/proofs/artist/363598fd-1960-4243-8272-bcc02b2aba6c.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 0xe5635f469ad959f217a3eb2de30a5110dbdb03323b48b2882b2e92699366f3c5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USUYG1088591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a8f8585108493c96aa49c46bff0a2aeddf422b8c8b459400aa361fbd680e78. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USLD90814393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155ca93509c3bb3da7d52de98f94c5dd920268e0fa2df82920cff24e7131c321. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USLD90814727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7786e23c640b73057a55bcfc1401e2ac7adbac5c9acc4fb42f888ceb9c5a8718. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USLD90814728.
Thug City PipeMix (feat. K CAMP, Quavo, Nephew Texas Boy & Ethan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb0875900b3eff7df6485b56f46ad363f511eb700700ec056942770f105b83e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLD90814729.
Bape Overdose (feat. Landstrip Chip & Big Kuntry King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2e4fb9976416506482cd124668532c901eb4303061d6c3440b39d0206d9349. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USLD90814730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0ff8824c02b4ad9b266de837963f4c8d05790aef544949c2823b0241387475. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USLD90814732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7482d5769d1fa749d52ff87376a7419ee8eb86ffa700aeb2d91f63bbd2617b69. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:47Z), 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/USLD90814733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53814bd5eaa8f27f234637bd343f2f0392537225052dc7506666dd964e5043f2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USLD90814734.
Porch To Porsche (feat. Bandit Gang Marco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a386ed3116027995ce88d950244a8130b4909d3ee61731ba8f3a99fbb7890d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:23:04Z), 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/USLD90814735.
Limbo (feat. Rico Richie & Cool Amerika)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4033119a0a65135ddc934a8b16f47186060e544cb25dd9f479229fbe1bc964a3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLD90814736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc804feb9fbceecf2a786b4a7b6b25d9b2130799b72ba43f7c8b0b87c53795c22. 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/USLD90814737.
Curtis Snow (feat. Chaz Gotti, Scotty ATL, K Major & Kris J)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf0be6240d040794d45b4e7488665b03bab442984ba059e6610a8fcbd329ba4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLD90814739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2a1e5e7108aca53351d284114ad4a49de64b9c4a9453adf1137258738c7cb4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLD90815977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4eb02bad1566df4c7c89ed51eccef32d157dcbff639bbf09d145816003f616. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:46:27Z), 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/USLD90819006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959948b5d111cd1bdaee92d862c1efadde9ae5ce781dc35e66665f29518bc369. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USLD90819007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3b55a684e0462c71907d1b843edb251361a2b52478328c880380666d2b1a27. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:59Z), 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/USLD90819008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1282babc8b2ca63e477bdd71e9b8ca799fa8fe41d71fa10662ec3b6ea72062. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USLD90819009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dd902f94efb75a58b548b58fd7d98e9f3653666e05b2a0226a37ee37f6cdeb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:15:44Z), 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/USLD90819010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f4eaeeb0fed04ef44db6acc2e5f9815f55425875d7d8a4b005276f07ea9761. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USLD90819011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726b76da6ac29333a6410a5c05e44ea7fafcd21acc1dfe926f06b29324b0fde6. 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/USLD90819012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505bc58084d729f60e89c14651bade1950c7899a0979c7768a9f6d493b09fbea. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:26:49Z), 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/USUYG1189333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eec9f722986a2f8e1ccbe4f3ae19cbc3ba5d8949902fc766181b64d6e6eea16. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USUYG1189331.