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 0xdebac4ce6ca8949a64a725189a2efaa35e56d51d0f376017f6157cc874b87eee. 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/e69e17d9-cbed-4940-8712-d13d3de85e1f.json and https://artists.proofprofile.net/proofs/artist/e69e17d9-cbed-4940-8712-d13d3de85e1f.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 0xda2614cc71de425641dd3d18b24167ad9eab7f245a25f41611ea3e33369e88a2. 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/DESW21400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddea7cf4c6799049242f17de8fc4773222cb18d55df261e35dae748ec508ea2. 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/DESW21400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c0f2dd081af59334bd37ce1a6cd9b18c18c110453ca6346cbd019b8e895737. 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/DESW21400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70709a66c71aa45c5678eb800cc5b5d8d2ba9c2146ba3f6642adc6c53b8d8d57. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DESW21400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e2f9391797d0c81f92a4faa8a814b5ddc1313fcf1dd96c23c6e5d6f395a43d. 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/DESW21400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4527ccae6a9606c73772ea521ac8e5fa1c76619701d0b40ad0848a061fac4aed. 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/DESW21400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47362933e201cda74cc22894a96a47583622df447c22fd06b95362508b2e2999. 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/DESW21400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19d307ce1c97fdeac82b1ae040521342838b2f52469ab2a966d7371eaf6fd05. 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/DESW21400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e98aa11c22fba9ae9544de39adda718253902de7a64ae57426a7d5083c723a. 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/DESW21400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d9ef9a9560e76f861fccd95bbcbf011a806a93e45aedc11630c20239122402. 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/DESW21400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc142aac4eb180c2db2450eb5365b0f2ba38b33f8a81b430173446862744ab714. 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/DESW21400012.
Alles gut, solang man tut (Premium Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2614cc71de425641dd3d18b24167ad9eab7f245a25f41611ea3e33369e88a2. 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/DESW21400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddea7cf4c6799049242f17de8fc4773222cb18d55df261e35dae748ec508ea2. 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/DESW21400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c0f2dd081af59334bd37ce1a6cd9b18c18c110453ca6346cbd019b8e895737. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DESW21400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70709a66c71aa45c5678eb800cc5b5d8d2ba9c2146ba3f6642adc6c53b8d8d57. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DESW21400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e2f9391797d0c81f92a4faa8a814b5ddc1313fcf1dd96c23c6e5d6f395a43d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DESW21400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47362933e201cda74cc22894a96a47583622df447c22fd06b95362508b2e2999. 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/DESW21400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19d307ce1c97fdeac82b1ae040521342838b2f52469ab2a966d7371eaf6fd05. 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/DESW21400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e98aa11c22fba9ae9544de39adda718253902de7a64ae57426a7d5083c723a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DESW21400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d9ef9a9560e76f861fccd95bbcbf011a806a93e45aedc11630c20239122402. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DESW21400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc142aac4eb180c2db2450eb5365b0f2ba38b33f8a81b430173446862744ab714. 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/DESW21400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cdf726d4e2f8a7b3dc2d7280f54675b64f84868033693084911d3b7f066c2c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DESW21400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a828ec8f6782f3db5ba254d1fd1c6de23c4f7bba1dfb2cdc954f6458fa98ea0. 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/DESW21400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ad0596bd88cb7532f1001f8fe05a3d64b8704728b4fa021d2931bcc211e1ce. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DESW21400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf030bf8c3d82c748732ae5b94cc8c300e0e9c549de6f75dade9d9d6d377c69b1. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DESW21400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ea3cf25628dd2c85db71af823029cd3dd4381bd523fff2bdff65bd51da7179. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:26:29Z), 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/DESW21400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7f4dbed197be17785a7f4466367a7c195539aa89098c114a5a634d940ac37a. 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/DESW21400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdeca19306fc0bf479142f349a0798def85d67245204f95a0b829655dce4499. 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/DESW21400037.