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 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 0xbc9031d2206154b54712f9c98d149eeaabf64fdf7108404224b3312c46afdf74. 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/9da0b5fe-9aa6-446e-98fc-3ae789fc0981.json and https://artists.proofprofile.net/proofs/artist/9da0b5fe-9aa6-446e-98fc-3ae789fc0981.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 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 0x1d95402b06099ab3608879b82d55429ad0de0692e11646de0a7619fbafb63145. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZSYP2127846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f77087de9c699df5f47f72d72b08ce25824d64489895f66f263bd8fc236966d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZGLM2204296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf860fa1b5c65e3916c1b27f49aaf9861142b22d5fda4c77f3f46c06755766efd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZHZ52294480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65925dcd7d61df6786f3ac24f26dd73166c5b1650f56732131e2d6f5ea1fbb0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZ5FN2380683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4dfa5d8dd7c05cd330c937dcc2bcca365c86c6de872767d249706a449b89e9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWDD2342150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb700ce80c19c2e13a6ab99b89877d8ac817de852e63bfbd787ff73fd3e1ce01d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWDD2374230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf24da20f8c473f4faef69165e5e622b1e54fb26e0953a83d463b8acf5538af0. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/GBRKQ2414056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8298646e3fabfb8a2dddfa9b009412582557f8a58ce57c292e7a074d43e3fb. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZWDD2456921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bea0057427160e83f0b7d6210db49bc74d197b01a07b7024e2ccdb2a6ea11d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZWDE2400641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc2e98d9955f397f81b844befb91b40b3d2c496cf285f4d29314321cc9b2784. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZWV32452313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae08d8f75f461c8b513e734aac2d04e96cfe89638dee4e350f1603cb3455e1c. 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/QZWV32452220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae08d8f75f461c8b513e734aac2d04e96cfe89638dee4e350f1603cb3455e1c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWV32452220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ba323dd92700c253f77faa848ddd72828d900134a317da6c556a8f9cd3857e. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZZ8B2467391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6352e397e65b49f7c66ca8bd3aaed7171e02ed2ec5a9d6ad9861f1713691035. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZZ8B2467376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1467cc6b9bdfa1affee68f363ed25d314ff25cb33602a616dbee826564e1c182. 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/QZN882569428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051f6209fee1da4b58789a78816689d04b062f90130133723ff23f62418da308. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QZGLS2568782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda527b32854859a57d9f9049b5044c076aaad5276e24bbe48e404e8775a24de4. 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/QZWDW2517921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d48fc46f5c665f6f92d189e9f57831874dd2e27fa79471af554f505029e21c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWDW2545965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902714fdd1820ff8b8765daa072e518bd94e8ea72086141b4263061f40c014c3. 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/QZWDW2576554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe497e268ea50b1d487f2ab00a3b09e496f55764abdb3c677ef453aa0671a7146. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USA2P2544635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a87c63841d0c4ba10568bd337a9bfc53911651eae8a47b4590070efed0333a1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USA2P2544637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9db99b3cff65529789a3c7e203e438c1a70002d724e1cd8c3d5fa8cccc1fff. 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/USA2P2544638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea835b11ffa71e83bb96dedf2d8db8bdbf3fde51ff89a936bafbe2659fbebd5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA2P2544639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5b99753d767882fa8b8ed5f2819649a44b25af2a51c09533dedd6aa304d8c5. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/USA2P2544640.
Pretty Little Baby + Quieren C Como Yo (En Vivo)
Pretty Little Baby + Quieren C Como Yo - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd4cac99b6d6f4cdb4b511d1ed904f681dceaf93c6a174c0e03916946d6f0f8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZYFZ2515358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e6b934ae4d55e1d03839756791e04021df22f464e65b155fdf1842c7fd6be6. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZNJX2420313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4735d0ff5a7947e66620082f460d8548ac53606c95c4b53a4ed9fc2e9dc6a4d7. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZWDE2436533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86767e04e3e6bfd49fcb2b6fa34612803c6f3d2c81c4f4f3cccf0c7023605b9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWDD2484815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4636dfe3d0d631f50892d4f9a64f47ca74f72132b2dea1cc1a78518935ab975b. 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/CH6542161902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc84dafe2e567547802d36f45e108c39238e848c7bbea0b9660737c6b3a5e506. 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/SE6I32308438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76c70201521fc73f2c43b5449258b2a8e6527235ede458fefc8bd9b7cf6ef6d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZHNC2306600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b63d855927a1634cff7dec75a8856d9d3e1b4b21b89d50d14bdcce75e679886. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZK6M2119972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dda1c51fde8af7afda14abc680623e3c00405844712befe014cdabb31357a6. 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/QZS7J2420937.