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 0x4fc9edacc0011d329a467f1deb67ce9bc6a19f0893412e399271b4af23c1b525. 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/6d081468-bb47-4eeb-b302-eaa248b6fc9f.json and https://artists.proofprofile.net/proofs/artist/6d081468-bb47-4eeb-b302-eaa248b6fc9f.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 0x0d30f477df6251807bc3c2de8d8e96e92e94ab500c246185d29df266605f4a53. 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/ES5701700933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18618dcb80d875dcecdff4f42739de2411aecd4bc52e62581bfdd536b0d4b15. 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/ES71G2305456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc4720c71e12e94bc0ab7281260a885acdfb534e4d3ec4012530eef529e6128. 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/ES71G2318649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d95214e41b1db36bb9c1c83d868c839fa56458165ab7176b0c6b820bcedcfa. 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/ES71G2318650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a53948be19b644c53bec4715539745621b78d372eba79f7277a06490b8e3c6. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:44:40Z), 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/ES71G2318653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612cb55a520e2c274c6a438b2a897265b8d8cf6352cb03955040a41e69d37389. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:08:06Z), 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/ES71G2318654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fe04c02000787849b445ce2c340aeee3b6e8341e520301bf035a70033559fd. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:34:11Z), 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/ES71G2249034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaee254252e8f63012a56b07e120cbffbadec970fe7a62990f23a9cc44262719. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES22G2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7364a6c95d5cf9b9f95da5b57a806b2b02411d85d01883d52fa0e7cf20a200e. 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/ES71G2316702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6700e2c0d67126ea22ed5d320e21399145fde813a45efab8d9b4e802317013. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES71G2416552.
Mufasa: El Rey León (Banda Sonora Original en Castellano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9594e40274cdd09b68c4a640be0a1480629affbc1d9e1aef9e0b62852373eb3c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD12435080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4889cf6a53ab99c6cb3d6f5e73f566c2f40c783fe47130055f6b5ccf30d2c9d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES6010600620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98729d7b435b2df777a43f8f4b1d6445b51a8abccdfaf1d96bb2237f5e81af87. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES6010600547.
Wish: El Poder de los Deseos (Banda Sonora Original en Castellano/Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653b6cf25ac4c4df4bd730fa9c6ec6686657dc780c98183d96cda301393fd60f. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USWD12329415.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a38c3a7f5a03c61c142ed8901cd0e0d1db56985f296f4da378ce7d902329c5. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ES6010600632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c7caae4034b3983e91d5cb99e48d6632ef6fa7b03c9f5222a72ddebcfb3e94. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ES5702000700.