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 0xfc29481ad9cad089994e6f7c7d059c106fae5580df1638ea98935e4ea8176980. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5cb0f5fd-d518-44fa-8a34-1c31f6d37069.json and https://artists.proofprofile.net/proofs/artist/5cb0f5fd-d518-44fa-8a34-1c31f6d37069.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 0x13dcec230573521cc785f8344c4d877a6c8c099a85cd0f5146964db1955898ff. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:48:00Z), 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/TCABY1453448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54734e6d8ec969eec5b04b7f6f970451b515eb90ee4e2acab998b75c6e8e7fb8. 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/TCABY1453460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e57c2cc650521df6ce6bbcb18c01e45f18d2ee1558d68c28d053657967c6667. 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/ARD661700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977d32119faa87539b1eee2dd5b5bdf230cc11cb4dccb51826181c0b62d8b61f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ARD661700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded5ca815044c11257556301fd6575ef71e8ebee333a731546968ad948a3859d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ARD661700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f32bac0b6d65c3e9a9e60bd675ac5ca013071b290356f0b15d0ad09d66d9290. 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/ARD661700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d6b46bf205acddc9a5ff14f7e07da2a9481f8ba4b61f655969a977f4d01427. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ARD661700007.
No Soy Esclavo Del Temor (feat. Lid Galmes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12d5235792981a1d5fb4d0cc68327a8d932003f17b864e174c362d154e3d2c2. 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/ARD661700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b47e99b87ba00a1127d464a7edc13693e5b5ece7d0521c10b33d39ab3bca4d1. 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/ARD661700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c9d488be12c0953dc51f450ab2ba7044cf08e74810a766100ac65e40a99521. 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/ARD661700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5be5396a526b4e81deb6d2d6993955c00c836b58a4428bcface284b9046c959. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ARD661700001.
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 0xfb68a808957874f23e0fc025aa626ec3846e7775d5a2f024b9181dbbeb942003. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/ARD661700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96d5fc750dc703e7c946fd2725fb6177ad43175c7a527c1ff72013f18758a44. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAGT2308552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbb2327ee35ff7a9d5fc2727f59334036c8869bf2700d7b5add9df6a1c25b16. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TCAGT2308547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed85ee93d0901c6dc363e417d57f6dc09e4b4fe920b904dd553b34534533cd11. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:01:42Z), 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/TCAGT2308544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b1317084da532597cda9676a11f1994361956307fae7c434daa724727b018d. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TCAGT2308565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac8ed716908cadd726d3b799657ce023f7e420eda30877765df9f9ed84b8e6f. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCAET2003037.