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 0x60a5e46357be9accabc7539bedf46cf806f816bb3dbe91492aa154900f4d7c90. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83ce4578-df10-4090-9bf6-66d61896528f.json and https://artists.proofprofile.net/proofs/artist/83ce4578-df10-4090-9bf6-66d61896528f.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 0x1ee7c46105a3ed35b60672b2738abda3262fca0f1f6b851fe2e18ca073ebfd23. 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/ZA56E1802141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3b4fb3b0fd954c52a2d4c6e54e8cfbe9c3b1dae58a759cd503418582b6c179. 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/ZA56E1801832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe876bf1b340ff80c3ec06d0e590b4e8947a61638491e20dcab3e9a7161a56903. 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/ZA56E1801831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5252d8e64adc1eac2c34b761bc8e0dd33c87f9259751826cf470574c64830f89. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ZA56E1802145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb50ed84f8f7019e51d54757554ebc28ae361e20f3a91d46ac22f5612bc29c05. 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/ZA56E1802147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b801542379474ac332d348f152d858b80131f0c388593380a459c7dd55841a. 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/ZA56E1802148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebf107c3b2343433325c3218d020ef737d6127b40ef4dc92cdb006c72d2f3e9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ZA56E1802146.
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
Exit Plan (feat. Maglera Doe Boy & 6th Ave)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4fb088e7e19bf2c182bbdbe6a2a0282b9050dabcc7dac20b90211c7879e842. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZA0I41900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40dfb37907da1084cbdfa8f85d12165e8f53efadb48c9a699054e8c9e0b335c. 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/ZA0I41900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccc0b309115ec420b9be57143936c2a90fecd2fcbfd09fdfc43464679823fde. 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/ZA0I41900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf788ed082bf29cecbfcdeeef02a98338a10553b18a2ca47f8aac8368c779707. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA0I41900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892d9b9e8301ebefb6159ffe626ab81447b67a6716c72eba6ae02ad14a46dc15. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZA0I41900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6452072948d92fc41a54484ba99060934a6930e2172029ac176fa72e3640073c. 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/ZA0I41900013.
Mind Body Soul (feat. ANATII & Sy Ari Da Kid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d31b473edd3a34d0f2576773077151a5d04daa8dbabbeb44fbd80f62444f21. 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/ZA0I41900004.
Luxury (feat. Una Rams, Big Star Johnson & Jay Claude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6443ac102a0a54f3f93ffcb0ad4deeb30af696365025c7105cfbd602c2953d85. 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/ZA0I41900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b921295955c9a91bb388d3ec93efec8688f2b2fe5a498a2969752dce616a87b. 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/ZA0I41900005.
Fresh Jig (feat. Champagne69, 25K & Maglera Doe Boy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3c5c3dcc31102653e221a09cda834e9598901b8f4ce743c4ad3724e178c946. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZA0I41900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0c2baf62624d3f485c03ec9a258841a512ee21d919bb3b61fdfdf08c503fea. 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/ZAYJ42200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800d7fd4e1756a371451352aab153ab0001382a361d2535c8cf01378dee5f67a. 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/ZAYJ42200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25edc476f74bdb802b62a56335714cf821c09844d2024fe19f65468022ede1a5. 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/ZAYJ42200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a377ba3ea6fc861cb402434c4762751a7bb212e8be9a43eff653d3d168d258. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ZAYJ42200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47509ed0018f71480d38016b49eec706401b94315d29c0c333e0e0fdd7e7d68b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAYJ41800005.