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 0x5a2d3031835b42268ad23712460c67be0369a5cf79917fdb4bef0b85ced65b13. 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/1b32c6c7-9a5e-4331-8369-755d53069b9c.json and https://artists.proofprofile.net/proofs/artist/1b32c6c7-9a5e-4331-8369-755d53069b9c.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 0xa4353e9862ef814289f590d323558262bb708440ad8b34db52fa0baf8ec5003d. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USHM91362115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ebb666f492e737b79622906a50b0dfddf4844819f821134155fbdfffcf226e. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USHM91362121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe061b94f64f77b978e8bcb008df0f412142b8b4736179608da8afe88a50f4f02. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USHM91362124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb043316d928953c5f114a961351245b835d468e68a89aec3224da452e6c6cf69. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USX9P1418875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96665c7a690d4dadc1a3b965e7a466547f15e9f1fccbbee079ab023328e0bbaf. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USX9P1418885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6185846d88d2e89e8d616cb3f0d013f1b30bf70dde7eefac1e6575c96d63a75e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USHM21681865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18fb3873b19176d4204c8262b2e5e141e55ca44916ed922b394b55c6895d9fa. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:46:53Z), 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/USHM21681868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdc5fec18a75fe519e900a2a212b4c0f69788cd2f9de2588f7be6ae474bca46. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/USHM21681871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0884b7a416576dccf0413f8b1527824c3e51d70dcea3414cb36057cb6840f7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:11:39Z), 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/USHM21681873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8368ce799e2a642815ba4d6f6d22a188f1045c8e16fa3854c26813f04f33bcf0. 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/USCGJ1724674.
Canciones Nuevas y Exitos de Ayer, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce73fb6404b8c5f818241bb68e088504eed6d894e30a845dfb3303a558224fb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USDY41802793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc022a4d6b9db345472558bbdd59bc421aebe4ad9b880cb3d77ee9f3a800607ca. 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/USDY41802794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528c001d93098d0a162d25095d6579939aa380ba9493ccdb8e7c45dbf39f8368. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/USDY41802799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa364a0835cccf01eef494809ab24ea229bb5694dd6afd301bd87e480305b67. 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/USCGH2187749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7d8e23bde976e26c3052505e85317c7f376602e300fca61c95c0e1aa5f6bba. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGH2187750.
Popurri de Cumbias Me Puso el Dedo / La Magia del Amor / Poquito a Poco / Chiquilla Cariñosa - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9709fe357de4d564012c9a4f4bff94c08a1a5f9b892bf262feafb4f401595ad6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USL4Q2100554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781ad6c8dbf781c876a4887efad1b1711ccc17793ea4becc89a286eb2f992fff. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USHM82163295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8022999f868cd1c620c0e631c03748a954e0febc5e2367cf19a0c6223476e07. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:00:34Z), 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/USL4R2542994.