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 0x55258299056ed06ec57d69cffc6c7da2c291a4f1bc575e17e64e02f642ec172e. 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/aade0743-c070-4153-baa7-12212981875d.json and https://artists.proofprofile.net/proofs/artist/aade0743-c070-4153-baa7-12212981875d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mtg - Lepo Lepo (DJ ARTHUR GUILHERME & DJ ANDRE MARQUES Remix VERSÃO BH)
Mtg - Lepo Lepo - DJ ARTHUR GUILHERME & DJ ANDRE MARQUES Remix VERSÃO BH
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 0xff641bdfb8ba25b20ef1263677c5cbfa7ac6d9a99eaf0f303ce9aaf5b8e4f623. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTAZ2314665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57da7e23d6e069da2ea348ab3bb814ec10c7dbf497f4e4df9caa188b789c5034. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/BX4IU2309802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbad6f4543d6b38926d7a9973339b7ab12f7c3e5e42480fbb36b519738d676de. 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/QZZEB2417508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21956e7cd5a1183b6bcca6ac571bcb3fc05d7c4b32dc0d784d9a9dff47c6415b. 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/QZNWY2525246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe249e96322f24530cd9ef89adab1b615171ecd0176cd97891087f3135504a1c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZES82540399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535bc9a726b447db2b4fef8521600691bfbdc06e79eba88155902590f07c1af0. 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/GX53U2460475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871b24a97a7715321f67b9250361b0684e60bff3b46bdb649c280795d81ad31e. 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/GX53U2473400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bf9d2e2633c17bd8ea9d28b2c393993e18e33c8f8d88dba5b74103a6e5a3fc. 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/GBMA22373701.
MTG - EU SÓ QUERO AS QUE EU NÃO COMI 002.wav
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0503778c64f496dd5bb45c8076e75d27a07b49d86edf9d32c3f0d01545eb4893. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZGLM2478562.
Mtg - Tudo é Festa (dj menor do m.u Remix)
Mtg - Tudo é Festa - dj menor do m.u Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490082c54cc2372130ac3009297c499ba5bc48ff241c920e4476cd1eee69fb98. 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/QZTB52366793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23a4e26ff2ef8c65c6885d39dc7842f681ee0e0f01d251f90d9ff1ce5d1d708. 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/BX4IU2341845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a1b56e4dbc5c6065aec1346026f45e851930e320eb233a784ecbc0a5fc9f59. 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/BX4IU2325914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ea3ae010a7b7a9164ebd734cdda75ac9d7bd2bdc32d4568d85add6b0c9702a. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/BX4IU2312729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ae78e957cf08981b37dfa4ec8bc0852045665fb9b3cde4e1309d6b7017ac0b. 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/BX4IU2303891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b5faf5589c4f65ee0c17863f8832c6ceab95a1e06793592ee41ccca26c0340. 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/GXF9Q2545361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa29f7e4a4d428d73d962f86db6101236cde5c517d749bb6190fc008193b2c3. 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/BRSVB2511510.