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 0x8bc43a79109904741f2e685048c59787834af2596e4f4312fefc024a75524acb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce58aeae-c20c-47cb-b680-3b342ea5e549.json and https://artists.proofprofile.net/proofs/artist/ce58aeae-c20c-47cb-b680-3b342ea5e549.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 0x7fa63f14b3264a0bd8aec28b6cf04a5180f774a5dec0b8e7fecc1d5fe3681a89. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/FR9W11932241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c258b029126576502d2ab898f90ac0ef4cc86bb71176207fe4eccd84283bb9. 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/FR9W11932244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd16d986c6508e3b497b52d64d1d06d16df8d3dead62eb5931592444bed5c644. 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/FR9W11932245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657b32946db68df8df8be55f8b770bb086968d95b626d63b09a55c1fe0ab7606. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:10:24Z), 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/FXQ732000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d751332dc0efd558250ae0e9000ad6c909c4480082d8036fe40b38b13c03997. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:46:21Z), 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/FXQ732000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d36ccc42d616c7869787f44fd36b60bb515aa5f51f5d1eb0ee62c3588f0ab1a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FXQ732000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e2320045658cb6f141d4dd996b3349462a578de0b9d36f067988f4a674d0ac. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FXQ732100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe5cdcde0312f6734f39b06d8935bde16b8aacf6299a1c786a56611c39afd3c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FXQ732100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c81e8d60eb529521a63f6013211eee246d12b1d04b0a46c715860a45028f8d0. 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/FXQ732100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd430fb553c4e22de60879d05ec808248702465cccd3c8db7352be945f9274f. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:29:42Z), 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/FXQ732100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e199c82b82e56dc28761add1c1447b7c3da9c0f19e04126351707fdbe28983. 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/FXQ732200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6716eb49476e72ed1777283661ea9232b61544fe608ce900b98a116c625cc7f3. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:51:18Z), 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/FXQ732200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ed9f538f8eb50a55baeec79cc19539fd452959f705921bd7cd0c330b3ee29a. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/FXQ732200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547901d3cbc156b35a66443029135b9ba25196436b4cbedc09b7f2c9a8d88f62. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-17T03:32:44Z), 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/FXQ732200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7724169de241b175ae9182e39bb99c3434d9bfed66063c289ce65af38b163c. 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/FXQ732200024.
Edo et Edam - Ich bringe hervor um aufzufressen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959c8abb878bb1b8b68b9dcf140f3d6e5322ea141b2ee4e6d49fe8eea8374eea. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:05:42Z), 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/FXQ732200025.