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 0xd020c3c751b4fe08dd0afed10899b5c607c598b2863b950b99280f014fae9f4a. 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/f8c0d9cb-f2b6-496c-a007-29a5bb189ae5.json and https://artists.proofprofile.net/proofs/artist/f8c0d9cb-f2b6-496c-a007-29a5bb189ae5.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 0x9a41f539860b2bfdeded8c45b7a45e52b06b02e11b7b5603db609bf491ea2309. 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/FR96X2069320.
La Rebelión del Ser Humano (Bonus Track Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6b7244ff1dffaf61d653fc5b5b4ea50698e2e37b2a90c5e382e1dfa02ebd44. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/FR59R2074389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf73fb2f5d6e9b1bb216157930d51850776a2139ca1b1f91676f6cc8e4b99301. 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/DGA072142419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcd4fa39389b39db2b45577f930af7e081c77de9d8741d5dac7e1de897dbb89. 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/FR26V2092427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc600097334b723d70a781d24d889c33014090b8a887221061d2f68089c56f2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRS182071073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89648850051a7331d860aa69e7c2841892cd2b0750f3990c4ef48b89283ee6fa. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA072142420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2bf7c60f44e83523efc5a14e020c3e5f120d333fbbefeb98b6eaca67442174. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DGA072142421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274e1407ddfbb972d1b187740f3e19aa74bf1d4864ddb9fc54b6311150ba8edf. 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/DGA072142422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6b7244ff1dffaf61d653fc5b5b4ea50698e2e37b2a90c5e382e1dfa02ebd44. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR59R2074389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98789649e818362dae911ac8d0b4fadcf14d9d35d2bde9f7cb5ea58952ba2b4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX281917582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941717aeefa8ed95f60b6837804f07e0b746e8b0aad5ebb902fd19f029396541. 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/FRX282039264.
Corazón de piedra (En Vivo, En Soga Records)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901ee97f915c378f84de27b21d03d5e930955559b1859f2908447921f958a15c. 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/FRX452334510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5f52746d891d5772e1e9fc1bc63a02c58f1cf224c1a83e96caa24522e985e4. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DGA0M2362299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2ec3be31c8b59868f8613e82af7a244a70b6752ce9ef7ff4071570c898a19b. 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/FR10S2428882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ec429925aa862cbe01d61bbaf674739f8c3435a2e1cb994e3db73a101a06f0. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:24:07Z), 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/FRX202415691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1acdf44a9bab334e500996e1b15f386aaae357528eb5a0dd1df336618236e8. 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/FR59R2568994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30d74480096e1098d16d1794cc2dd0384a2338962c5b22e84ecf2ea42549f9d. 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/FR59R2568995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e35706d79c0e455df275624819597ea42071c4b4e57f814c575fad9f14422ee. 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/PYC842201133.