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 0xed24478de149754b2ed5f540df1acb12bc3f443293ad747bd49bccd63e852e32. 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/7aa569f6-0bb0-4b2a-9756-d1c158063c30.json and https://artists.proofprofile.net/proofs/artist/7aa569f6-0bb0-4b2a-9756-d1c158063c30.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 0xeb06fa14c8f68d08839713b893610d7f699109cc8ee419b1c6584255dba9e341. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:04:50Z), 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/USEK70805902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4c05af7bca782a4fb1c49e4de5a2cc099d1f5f001e48d13f3f734beb0beaac. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USEK70805903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f4ad23b66458b67d9b83b733a6ede62c77550f817871a5eae5cabac8ee14a2. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USEK70805904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdd48eddd8f8a5da87a9de610a5b632757551d5e8f2b5348365d1d72a165bd5. 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/USEK70805905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08729824b03783e77e86f9c3edeeaef8a5883a2da8c65aecec7d0dfcf270564b. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:18:22Z), 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/USEK70805907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217dbf2140b9b4eee7cc6aa9d9ff1d9d60b5ed6cc080d85a77fa98b96618788f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USEK70805908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dec6bb483049639fca5ce5e826cc4e45a029569a377cf2a0251fa5e050c016a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USEK70805912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1946e60c2b35973e39a317281f79d385fb8d60756b4df89e62f7b2f5786112d1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:48:57Z), 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/USEK70907901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd34be4bf9d28a22a63ce31a4ae8836cdf97beee4f00738a7ef659cfeb1751c. 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/USEK70907903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7035ae89d4cde0c3cd983edd4b0a9a7e5dbbb6b5fdc6ed38fbf50aac221f4d2d. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/USEK70907905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86751c55d42dc1a2bc4e7a1e2b3bbb193c88fbf66b8a41794b5c38e272691e27. 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/USEK70907906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8a58c9a18c599be82273778a8da75c0b8b50853025c26ea1e3fffd1aae5ea1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USEK70907907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101aa74fe91b87f2e978477345a4de7488683a79b9ae18e4b1055c6a42467461. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/USEK70907909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0c3a03d8b736ea701d5c6f875a50495c01b79eac0793d3abc3d675ac18a229. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USEK70907910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebf7d9698e07d27f4b39c7496fda08134049d484d57a183b0db5f601e72e137. 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/USEK70907911.
Devil Walk, God Walk (Heaven Walk, Hell Walk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be59c6c2224f9e45561aa0a7ac23b2417e44a54019edc604a0c05e0f9178d98. 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/USEK70907912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bb40974ffc2c99d203910fd1a4fbbfab75dda6219e76c1e59ecc152ea79fae. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USEK71009801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd6fda9af93c54c0b679649141ff4f9b94eb82d47fa6e11725cb25afe80e6c8. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USEK71009802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8288359b231fc7d5e0726d4c0994e907163d642c5d8d7a751ba90f20cd510a31. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USEK71009803.