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 0xf387e3e34d23263aa891fa61cf96c4965e16a4bd84564f885ba36ba3ad31e750. 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/6a4ac175-55b9-4726-8b62-ce69e7b226b0.json and https://artists.proofprofile.net/proofs/artist/6a4ac175-55b9-4726-8b62-ce69e7b226b0.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 0x6d6e2c3d1aa1779d7807af5dc29f59ad84a199cfae037fd2bc2eb4396b317da7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ARF060601300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b59a5c9e19b1d7f018eb4a4e61453aeccded8bc8e1d290e8413d3031ab73a70. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/ARF060601288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa846e658abb553beb74b522799468b701ab56000606ad1cbbfdc9ce106a909. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/ARF060601293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cf8cc73d5ba939767352eaad2c83bca623cc7a9bed7450ef4ed6d9249286d8. 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/ARF060601320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8594489502bf8263356ffcd2d5083d7c17a7a28d031a4e6070c7ec25ad45fb21. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ARF060601321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594a77dfc4b4903816da5146c6322a6290d74c7c5db5d0e1221a27f0f1d1f546. 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/ARG991021702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bec5bd56960428197c71f2c2fb4ea0b64399b7b5607a2c3e05fcef953638c98. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991021704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8594489502bf8263356ffcd2d5083d7c17a7a28d031a4e6070c7ec25ad45fb21. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ARF060601321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a17678ac71c21c47be937663178d4034e973f14908271c7e4bb113c0f5b09b. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ARF060600534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa846e658abb553beb74b522799468b701ab56000606ad1cbbfdc9ce106a909. 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/ARF060601293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736d2b576eeee83a1c77ee9c4b74b8f8bb3bde3db6c5321d088206869fba9b0a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:06:14Z), 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/ARF060600532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6e2c3d1aa1779d7807af5dc29f59ad84a199cfae037fd2bc2eb4396b317da7. 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/ARF060601300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b59a5c9e19b1d7f018eb4a4e61453aeccded8bc8e1d290e8413d3031ab73a70. 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/ARF060601288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ecdf0edeefd9da656bce8057c51f1c0f8407178822267513bfac8243743383. 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/ARF060601314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8094721de9abd2ab3e49cbcea4add2a151588d576caa3e0e75565816431232. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:36:07Z), 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/ARF060701192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daabed7dfe672f8025fffdce49055a0b558fafb989e75c5e1f9c3486ca463c1. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/ARF060601289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfced6d9277465fb92528c30b5f463821c88fd28294be9ad6ac9f6d00c9b462. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:47:22Z), 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/ARF060601313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd688954e50ed17bec860092330b110bb24b2aad70081fcd822900e83fcbb2ec7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ARF060601309.
Interpreta a Sandro: Cumbia Santafesina Con Guitarra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e408bc7ce45c62f2519fc958d6fd6798db05d37f9504e8758318279145f099. 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/QM6MZ1476470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e408bc7ce45c62f2519fc958d6fd6798db05d37f9504e8758318279145f099. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM6MZ1476470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5016f219e816e194ec086a930f47f449094755e3d3685c77daa2ae76ecfbcdb5. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ARG991026061.
Superbailables de Siempre (Mixed by DJ Red)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d7fdf4749d472a30706e1ecd1b6e260d0d0bde5d91af3bdfe235613c0e2d6b. 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/ARF060902027.