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 0xc3efa822d97b66d643efcd4efe827dad40edc28fb3caceba79a87c78c21cec19. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55d307a3-7862-4e37-aeca-f3cdd8a90187.json and https://artists.proofprofile.net/proofs/artist/55d307a3-7862-4e37-aeca-f3cdd8a90187.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 0xdc0d86e5224f7ea2cd276893e5e3253c59c9e66274bcb26a95b31de813206003. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:38:05Z), 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/USJE62506083.
La Gran Colección del 60 Aniversario CBS - Los Dinners
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552808213abd65a5ef25176904aa886e7309ce16d51644856b19129e324261ef. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/MXF147100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1a6299300479b4339779be1763b5000139714a716349ab03df3643c1ab4050. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:14:09Z), 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/MXF147800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e226de91d3de2486d9852513633bcf0146b14763f68f355b27a8fb45f37f6e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:13:04Z), 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/MXF147700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1d2526988d503dbdeba1806bdd81f035287119e6e87f23f39ebd663767f906. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/MXF147400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d3c0f3ca17eaeabc8ca7566e67c984194a2edcc1dd7dcab50062faf5737428. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MXF147700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dfcba202037300eef30e189f811824f08b879f27cc5ad92e090e3f2ee4613e. 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/MXF147700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3eab4d5f33c73ee78a339b95afd8bebb6f8e0aafa2c38f8c08bbe17235e582. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/MXF147700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc93c52bea7768dd65e6dbb08b54fcb3837373cb18d2722665005749a79d1c4. 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/MXF147700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dfcba202037300eef30e189f811824f08b879f27cc5ad92e090e3f2ee4613e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MXF147700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226bccf4cc7a0b5dc18f199154a3e118ec8bf0ec1149f7c6648fb03ffe1ca21c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MXF147800182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5362b44dc1922bfbf57d8e951c354dbe168464350ee26b170b6f8226b6c18171. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/MXF017800576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355cbe85ce68ccb5673ca39b9a418e5c82e15aab8b953b5bec53044fae19a2d5. 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/MXF017800572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b7e3836dfd44dca1a6772d4071c4438f7e82bf290d85629a16e150b7736ab4. 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/MXF017800575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d02da23031cc6c28b196266ab087e340a3ebef9fddb407f945f233364680e8c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MXF017800574.
Los Dinners - Entrega Romántica, Entrega Total
La Cocodrilo - Dos Amores - El Zancudo Loco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93e6d19b4482ed2d029ca0f3afba24f4f5e867e5dda694179883b9e1478779a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/MXF148700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9943206b1627b6885e80aad1d763655bf6569d8df0a85d1e3b96149b56e26b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/MXF550906567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb4564bf40f85d742b8d3b6b7f21ca83460cd5fdc8d35d9af9b3183e1c953af. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/MXF550906572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc287fa31749413484323d075ea65e208a3ee5fae302d70103ff4d4ea05291661. 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/MXF550906574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8ccce6d77ad0521b1935e9a46c91edc828281ad2ddf1fea53bda95127c19b9. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/MXF017900729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df9ae98e6659ec13f73eefe121efbd436566760806c7c8fad5f2833044cca37. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/MXF017900733.
Algo Más Que un Recuerdo - Tesoros de Colección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e7fe9d0dc90fbcb76e8a8b9935f33d5ac282928073fd6de41b1a108da77557. 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/MXF147600014.