1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb98fe3349975a49d371a9602104eff16a4e9cee77fdcec614f080120fed61983. 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/e23c5c53-7b3f-4f5e-a3a9-755091dd3452.json and https://artists.proofprofile.net/proofs/artist/e23c5c53-7b3f-4f5e-a3a9-755091dd3452.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 → block OTSBitcoinBlock must exist at that height 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 0x6ad24a5fe0c475a03c9ba278016687a69a1f3d216b563fbca9e17d5281f320fa. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ5AB2086694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ef24acd3ba5c73e6acaecaf8fa2af044243805ee4c0ba463b54c2d2cb1e12f. 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/BKDSP2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095dbd16c465b07166920742af8da22ac483ab6b836bd3fd9799732ec3bda762. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BKDSP2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcba5cda3a127aac0fc7af77de37ab815caffc8c636d876dc4ef2d7edcfa4fde. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BKDSP2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c329d61ce34fb4da98d507a102aa72550d30572317d79b81f81a18df4425516. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/BKDSP2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f5c12b8f6c0e1e2c144baf7590ad1fd086ab56fcd333c2cc2ffcec0573396f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/BKDSP2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297335d4bc5ada89eab7e890f11edd5843933f47c7ce4dada3c055de5902f96b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BKDSP2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a6997d2660fdbb0240dd7d7fd9ef1b68b0a2340f155a12c274f0c10210da6e. 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/BKDSP2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613f8007c5460dc567cd00e8dd7cf08e832bebd07f70d936b11618881ddaaf63. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:00:23Z), 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/BKDSP2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d92e1ed96b316385b7f5995c556d95c678dccc9646a9231261419f4f34e53f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZ5AB2493673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd216a2dd14a73207af219a22a5ed2f38edaf0382b1bd1b4258e9a8e579f1890. 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/QZ5AB2493675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ef24acd3ba5c73e6acaecaf8fa2af044243805ee4c0ba463b54c2d2cb1e12f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BKDSP2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f28411c882cba1ce7c7c528cb3bdbd1474234297293c64ee64e09330ee61e40. 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/BKDSP2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9656ec469ad41d466067eca88f60203d2d8c1bf901d5dae2e2e962da3b5826f0. 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/BKDSP2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297335d4bc5ada89eab7e890f11edd5843933f47c7ce4dada3c055de5902f96b. 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/BKDSP2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095dbd16c465b07166920742af8da22ac483ab6b836bd3fd9799732ec3bda762. 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/BKDSP2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428b839097ae32eb2f71a2dd953cc12dd75b1a6e3ef79da69bc53d0e4de9bfc1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZ5AB2493674.
Camará / Tape Deck / Água da Chuva no Mar / Mitos Cariocas - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e7b373f192b0a78412c588700de45d7d9c4ff0c8956e79cc607f6cd4b67082. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZW9L2485674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233a587a9fcb86b050081f768a23ed5d5fc11a901f760b17acc1d40d67312a02. 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/QZW9L2485678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39415576287e9b4e516919fb221f3784715cfb766d915248580b4d8f4265c34. 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/QZW9L2485679.
Deixa em Off / Tchau e Benção / Pro Meu Mundo Girar / Muita Calma Nessa Hora - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc51c62ac6ea2fd8e4b6862cf1a92274afcd96f50da77af56937ea5e7693edc0. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:55:56Z), 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/QZW9L2485677.