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 0x6cfc85fdebf26bbec2b4c3935f9a4097d426e8deca8600d490741ca10c672f0c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27ce5c49-8718-4bf8-903f-33b06563243e.json and https://artists.proofprofile.net/proofs/artist/27ce5c49-8718-4bf8-903f-33b06563243e.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 0x29d997dc4bea017538bf0f12ea65f5aa7a6681029ceb61e3b3e504de5838635b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USHM22316630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf2be47c2a432959e279bc6d2b22d6838a752e0b79c3cc73279d229a4b95fc3. 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/USHM22316631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a17ab5c2ec1ae93b318bd67f521e94f1f559996f85418cffed55b1d0e74ddf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:44:29Z), 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/USL4R2308213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286ea81e5eb8016641cb976d7f34db79091f700c78ba7ef7ea39933a9ce597dd. 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/USCGJ2473787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938e0d40c24148531e5c5930077374c17779e9631204e6715a5f7d1c43543a09. 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/USCGJ2473788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba92fcb6f17a46f9c5270a25ed602c9588e3f7725b01172bcd2aedb99bbcbff. 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/USCGJ2473789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9754b51d9a10672742f52fbb5730094fe7ab6e046a61b9fba438950b59a2105a. 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/USCGJ2473791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b68344083ee9d623fc6f54fa3053eff815246e507c9bcae38e490d864fed07. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:44:56Z), 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/USCGJ2473792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5010087f447ea7e79af10f8fd21cffb13d32a88fc39386bc4e411ca51c1aee. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCGJ2473793.
Popurri Ramon Ayala: Casas de madera / Bonita finca de adobe / Mujer paseada (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb371c7f83a916fda15e3bd64c05e4d63768ed01dddf39e9472e13f53dec24e91. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/USCGJ2473795.
Dios no lo quiera, Te quiero para mi (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21aa2996baf470e8f33a6e915bd9862f0b39864a7d9911d460a882750763e55. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:44:28Z), 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/USCGJ2473796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecd2878191455d06f6e5878d8d9626f3aae3dcb9a15b494a8484ca5d2e1dcd5. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:03:12Z), 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/USDY42497319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2e2090a8bd253ae3192f6f9817cdfe8d3fd024c654b1dfd9e61e4d77c5fdd5. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USHM82437611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c8a678c859e60ce364425a0b9871e5f1d54de8a5df54a168e9d03f300a7988. 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/USHM82437614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aabfce1628522e4052958bfccad370a0dbd80ac48427eb83b65da41bc45ca00. 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/USL4Q2455054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3fb4459ba39558d7b35393944ac194a66045f479c2c801527c619a6abdc3fb. 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/USL4Q2455058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43162e50f295051ea2c59980492ac67a41b4b63593485d5c3dd1e2c0570b156c. 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/USL4Q2455063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d551d4d96db089b6c4e5e6faaf8dcee1f23a5f9b33ab74c12f47d13576a4b06. 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/USDY42569271.