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 0x2e1cf8370797b37bc2c53c3d77e28b97c39cec30cf62a365483753992bf9009e. 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/545fc34b-8f36-4cd3-acb5-11c77baa6224.json and https://artists.proofprofile.net/proofs/artist/545fc34b-8f36-4cd3-acb5-11c77baa6224.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 0xfa7472fa415ea9596cb1621b973091b7341ebbe51efb2bcc72736e444c478d40. 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/USPWN0911337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ba5a29f02453b529a3c530b73e8ec936e12e381ac23b5f8d02279d3b48b13c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USPWN0911342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80124dfc84e3c46d1d13ac6176fad73836125a6f805dedbe587c38d032b4e736. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USPWN0911183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf153368d2bf6130207d3afb71aecd188f7ef9610f48b1d202ed592e5a09bf87b. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:22:13Z), 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/USPWN0911185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95f4018f6e29d8ec6fbabe9d10d396efc4e46efa49583e077e36f10a068d7af. 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/USASN0701870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdc599ea12f61f83ba95b4ad6bda7887e9782c02e5ffae4488c21284f15b8c3. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USPWN0910636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487081691b3216782ffd3f573beb80d74590d71ebc169b08693b1950781daa8c. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:00:34Z), 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/USPWN0910640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0833978cfc61770bdf954c209cda0b2726c55f89e7fe9b5d1fc02456336449fc. 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/USPWN0910488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82de7f13004d9f4c4f507d1ad8e8ba6240b93ee77aa2de94d7b4a0e853a74d5f. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USPWN0910493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e995656852f61ebabcd9b076a64af89cd9b613f01b3f8f96d6027b418a6114. 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/USPWN1010166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1df289cb47234a47b757c35a6c6e1f82cdbbad04162708840372ecfdf2a8f. 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/US4R31137327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b6253ead11e9a0a7085f255574222372aeb8cd90f6e9d3cee3525380f344dc. 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/US4R31225454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda49f05871c87887ef4ab7ba836d0b66d8adc972b6510286af651fd3eaf33f4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:04:28Z), 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/QMDA71421460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf3b6d82046f095df3ae77a9b13f258074ebef3deb7aebde8fcccac41c6bbba. 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/QMDA71424622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff558e3cf0798c392070836f6824ca319bf76ce32bb0c2c2f3130f6ad50d266. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QMDA71424623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36669c8b3c3f1039a244ed76830d234ffa4457c3ed3454aada250378a86ca3c7. 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/QMFMG1445981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b5314565541c84a3b08adba948f26f1263fb0dfc753f74ae4f6fd2ecb0489e. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USPWN1010177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463fe83e61b549625560cb3387d305978e4377c3aa454c79bac9764af0d61603. 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/QMFMG1455030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa90a1e94992b78041b7c51b62cc7ac23fe7c1fd56c248c3e70acb3a5efaab7. 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/QMFMG1455041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4b61e992b998beec8d970df12365634905e29c09bd50c18d566d3c195d699f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:19:05Z), 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/QMFMG1455081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22466ceeebb9e6a1213fffef8214a6777d1b0603e6b124c667a1e84092e9e3ea. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMFMG1455082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bcc66f82ec71617b8186b861a24639668ebccf873bd34fad324c5d78f5adae. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:24:24Z), 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/QMFMG1467014.
Popurri: 5 de Te / Segunda Dete / Ultima de Te / Palllos Chinos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a78263bafd0c3e1ff82a3d3c78a4c0cca876534f66893511cdea6a6b441c90. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QM7282586249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a9cd90bafd68d52c38fa9ac9d1bb5813b1f7487d48c0c8641d078cd7074758. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QM7282585431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcebb183d5552000177c30a2c39324fa66749d8918143e33dbabb2a966397bf4. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QM7282586247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36268d4f63d79540726a860bfca82fd268c98c08576a4f5ea20472e4e8101efe. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM7282585482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dba4d1b3a03b57c8a3065497e5fa8da274f7d3d86373f9d4e55a10a0c2c901. 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/QM7282586246.