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 0x76dc26c3e7ce3dfec9db454977f29f482da4a5bfb855545eb6ab75630b11bf6e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fcbbeb6-ee22-49c4-afd8-1306b8649623.json and https://artists.proofprofile.net/proofs/artist/8fcbbeb6-ee22-49c4-afd8-1306b8649623.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 0xa5baf4715f4349c1ee21093069e2635dfa8952c9bbcf3dc73c6d642e3ed40604. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/UKGNH2000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f90ae940711ec892006860ad41b6eb420331bc581a52b3782859e788cc1a7e. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:55:40Z), 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/UKGNH2000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80000716eb742b6da07c65c42f81232fbc2297fff54af86fdc7dfe1885423f4f. 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/UKGNH2000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee15124cba48b201f4fd4c58a006a6f3b757f0c2d175baa6d255fa79fec4dbde. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/UKGNH2000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd04d71b7c397a50f3b316ea547584ce946d9f7f0013f8328cec4352875c605. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/UKGNH2000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5baf4715f4349c1ee21093069e2635dfa8952c9bbcf3dc73c6d642e3ed40604. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/UKGNH2000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ad429368259cb595a7154da32314d56a337c853d8a98aeb3a56dadc6da84bd. 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/UKGNH2000203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe114d57c0028386be3f73fdd70a9521a46292d77fe48a9ef1cbfea965e597b7b. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/UKGNH2000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80000716eb742b6da07c65c42f81232fbc2297fff54af86fdc7dfe1885423f4f. 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/UKGNH2000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee15124cba48b201f4fd4c58a006a6f3b757f0c2d175baa6d255fa79fec4dbde. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/UKGNH2000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd04d71b7c397a50f3b316ea547584ce946d9f7f0013f8328cec4352875c605. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UKGNH2000210.
Shines Like the Sun - Levitation Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb2e32e3bd782b69257fc7a6eea9ee7b2793ec2c3e9a8d8a46853e19c6c60ba. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USD8D2188001.
Leather in the Foreground - Levitation Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc143050828db03b72ec581e6a1472792e1dffddcc2b0bf005b94150deee8ed74. 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/USD8D2188005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb511e8359d7ebc246ad17594a8e250f38ce3d92a6cb7f760e07a7e6aed112c7d. 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/USD8D2188007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f3346d315473999c40b677e19e5804e009eea12f90cba310d5a36639981fe7. 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/USDEA1245221.