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 0x586e0c104d0c8b0f49ceadfd69fd3c3a659d7ce76f950bf0a0545924045497c4. 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/b7748f5a-5e59-483d-8eb4-0029e215e4f0.json and https://artists.proofprofile.net/proofs/artist/b7748f5a-5e59-483d-8eb4-0029e215e4f0.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 0x79890de25388a7a0a0f68867a3ddab085083e1bd64d9031a2ea6025f88e12d1d. 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/ES71G1948387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef915eaa1715be9523c9724b608a7b3c07d0bf3d36828ebeb9d09400f30bff8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES71G1948390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9f73ea18e400c168a9ac56f940fd0b1dd7e3d6a3d475ac91baad1dae1ca0b7. 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/ES71G1948393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cbf2dacf0d260d5e0421561613338ddd1e29e521caa475640406882c7324c0. 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/ES71G1948394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646e91f35d3ed2166c864724a4eb15b5b039a70d220cc425b5e5cd24ed6491db. 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/ES71G1948422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5a7ab63f5b7c47e4695d802e5a0ea4bc2b251e54c107690b4861d90e1bd421. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:38:44Z), 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/ES71G1948426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f83c854ef13b42689687f0c7601e5d27e8e9683ad16e9b1005f8fe6780d462. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:52:08Z), 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/ES71G1948430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba26cc08f7a8641993d69198feff3218682ac4d4cf808f3620689e17323100f8. 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/CLPP20800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c8a94f6d345b3f8c52950e8f28fe987c0c856901812ac046eb3b5d5f7130a3. 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/CLPP20800159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ef378353ebfa6dca591f0947764c24216beb670ef40e640415d9eff8b71b20. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CLA220300246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c870dfd2a9600afab61f6cc7cba72101d5a039249d41144b614b9c5f02256f3. 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/CLA220300249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7114158cf9aa45ae152c765f13d8433fb0f439f40f6951b14bb892dd36775c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CLA220100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb843681d083f4b77daf80715f480c2df2f7f6f323cc7049f0266b9da551138c8. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/CLA220100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae72ee7c7f7802b347944b53487b0777b68e6c34b7b24dfc5c9eaa3e64a8267c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CLAB20801837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab992bb55926b6eeef4e8944ccad9981367943d00cc42fcb2fb08d0f75d75a0. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:24:48Z), 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/CLAB20801840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d91cb2fc5f2dac8cef28be90b10e18c5688223a9653e7562916cd264590b594. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CLKT21801038.
Te Veré Volver - Tributo Chileno a Cerati (Disco 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04f803888571a687496a249eb4e369249399ccf1d24b9537385e829b807f0d2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ART0G1201657.