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 0x4a45234eab72ee19e305b343016c612d88272f0b0ecc33e0c9cf54718fe0019f. 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/e7faa685-9798-4531-a77e-49cb16e2482b.json and https://artists.proofprofile.net/proofs/artist/e7faa685-9798-4531-a77e-49cb16e2482b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Burning My Bridges - CLMD & Marcus Santoro Remix
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 0x3e69039c584b90d1edf37ecc807fd63cdf3e30b270bf6f50704737ebe469204a. 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/GBKCF2201106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21534818111783276599deaba1854a96d34279eff09ac8592e0da6b626bd949f. 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/GBKCF2100993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeea70c522fde8b6a3a232e246415fd34b63d904725f0c41580cd4bb3d7695a1. 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/GBKCF2100995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe739abbd7a18301472416f86a261cf7788971cc1320b229b1fada03c54ae440c. 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/GBKCF2100994.
Losing Focus - Marcus Santoro & David Pietras Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1288e5e15bbcd041f12d4b6cd82d608092a68262d21e76b56951a064ea5d3bda. 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/GBKCF2000946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3980168a487c4496cf8ace1295619d5b3d3b71338294ac61f4e0504d81f09410. 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/GBKCF2000944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607a5155914610d0e16d2dda2ca3e9d113c34eaa979f240b0477479e6c098c4a. 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/AUNE32200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cdf56d07c1389dad310db2910e7f01bacd93c14ae299de2615b2e72686ccc9. 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/NLUW22201865.
Enhanced Ibiza 2019, Mixed by Marcus Santoro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f817dc493c84e768b7afeb77d30c29066b792a1fa4faa8281c1a4e639a58eb8. 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/GBKQU1905317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75f3edea82d413f1bbab3e4fafe56e2bf959ebe78dbe63cd02287c94444119b. 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/GBKQU1941071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2042b5253072f7bd15eac73020782ddb4b8428e6773d388490099e7c1004055c. 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/QM7282435668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe81845b3dca76ae564f462e4dc605534e8e12a509ab8534ab9cfc7e7b64dc9. 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/NLUW22402428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ab27238156f47599d1afc52cd1e9cd8a396f8a99307129a9bfda14bf24d3df. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:47:13Z), 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/NLUW22402429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508f33707945ac5ffa58c01e25546c5fb38fb765f8cbb974abe51ef4bcc246ea. 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/BEIW12300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9296838e22f885e5b7a65acff6a817ea64e4907331cf58727d002b125f9d33ad. 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/GBKQU2341177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2ac6a41c2541581b2387ed765b885253d919234684da7996bac6848adfa280. 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/NLUW22101382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b09158b1e8458a317eac926ec4d3d4c63664f66fdb9841079a8bf6fc241447. 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/GBKQU2121254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2f4fba780a034b56e8e892d201ab5869fe8247d95e1ae30d6437600d3b99fd. 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/GBLV62030284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe054a10b13eefe82e2f0ae75cea0a159973b5fe2484b0668655b808cea254397. 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/NLUW22001119.
200 Years (feat. NEIMY & Ivan Gough) [Ivan Gough & Marcus Santoro Remix]
De todo y de nada (Marcus Santoro Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa118551eb16950966e7ce69617da290022022f03bbbdd90efdc80a3a1fc24db8. 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/GBKCF2000890.
Piece Of Your Heart - Marcus Santoro Remix
Piece Of Your Heart (The Remixes, Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13e4bf3497cd2724e516b65f98239e2970b9bd30cddb4e60b405fc39896e99f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEUM71904852.