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 0x8f3f11ead7fc73c59e9bd475d3cd3d8d860d40dd042fbfb74ba34cca9ce69b70. 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/0533cc0c-86f2-4980-a9fd-65044125eefc.json and https://artists.proofprofile.net/proofs/artist/0533cc0c-86f2-4980-a9fd-65044125eefc.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 0x8753613c382d3df4176c00c53bb40600bac1353c1eae8bfcd8682e12e7dd60e1. 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/DE0081400344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f039e56d75d591710f5313108ff441b4023a097d09f18c2b41422c6c075e58. 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/DE0081400345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb21717c9068c0aa87b448d6da9455d690254cce1fc444b94ea3f272d3d3152. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US4E41742402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe496ec9c1fdee36d2ce44dcb9d3abb2c628752be8c7d65f9835488eba915021f. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US4E41742404.
Drowned By Humanity (Bonus Tracks Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650d97224f53e7ff45f6808780debd2d0aaaa7dbfa1149f949f602bc51dee879. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/GBDHC1907002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ba8c2f52b4c8bd0578e82b844c9b3947c7413ec61a32940b9aadc9b119b474. 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/GBDHC1907003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89a85b8ce23351571d5a3ce6344eead4b0ae6c2c34b1266df490f66ed565123. 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/GBDHC1907004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5e4cdcc1af0426c8e7c2f35c58294f139007b9833d796b72710c2c3a657bcd. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GBDHC1907005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8cd4ff3a881ab8d8242488c3b1f65cfb30c8c0830ba390240ab9c58f3a3c09. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/GBDHC1907007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2dd2aa4238f4eb98006b33622785ce438dda5e115a7a2c841ddb3249e36f60. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBDHC2225501.
Artifacts of the Black Rain (Cover Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1dcdf7f8de1b6c119dd647124b952d2e7f4f996f532237ace630fea341b16c8. 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/GBDHC2225504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bef714ecbe26e57fac0376161d213b69db3939196a23f50a2cdc270c990ddf6. 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/GBDHC2225509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe720b47e747092ec7dfd3264911d1fdee3eac2a81eda820c1b592fbd09129701. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBDHC2225505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6cd3401d041645475badc623522f0beadf014125c54a3a3b54255b88e1564d. Chain 2 (Bitcoin): anchored in block 957714 (2026-07-12T14:35:57Z), 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/GBDHC2225506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9328f8d7120aba7556d58ee60b3c8cbe990140b7121303102c8afb75e285ee90. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBDHC2225507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bef714ecbe26e57fac0376161d213b69db3939196a23f50a2cdc270c990ddf6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:51:42Z), 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/GBDHC2225509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f0a69d2296df72f65d2bf1174d3f7a671749ed29c405eeffe3681716d102fe. 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/GBDHC2225510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eea2e15643b1b93c7b7f30bac8fe8fffa1284293f71603d81c81284ec960d3. 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/GBDHC2225511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb61260c45965d96a03e3ef074d4dd38dc6fa786a262ff563af0674d9ec00eb. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DES562512088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3265e0c8016a73a1dd7b1723280c77d7eaea6d3cb2b99d28a5b018a7c2b559. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DES562512089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb61260c45965d96a03e3ef074d4dd38dc6fa786a262ff563af0674d9ec00eb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DES562512088.