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 0x2aad68ec780d2c8199b76390d5c97a0c6b78bd32ed4aeece7b4bd975cbe8a6c2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5458b7df-4e66-4a58-8251-6239ec1bbb13.json and https://artists.proofprofile.net/proofs/artist/5458b7df-4e66-4a58-8251-6239ec1bbb13.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 0x9813c05cc06f121cee55c327a78bfd63658f43afedbcdfc0f1d777989bce713f. 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/QZNJW2055388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c406d3cb2c7d39873e0fc1843293360a430a853088ecde3c1cef6ab3cdcaa57. 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/QZES52376037.
Estou Com Medo de Perder o Controle (Intro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aea73938cc70356640b6dcddc6e53ae7c890390960c913b3d6e63f3a76c3307. 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/QZTVM2442049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9da616b7572d2dc2c198775952e3b4c4c6ea31de678167f51e7e274741599dc. 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/BKCOW2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c839221157f8421d3c1068222acf14116e163d1ea6589f5ee041e0b60b7f14. 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/BKCOW2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd845b5686cca17156a3e3d13ea06ba7efaa21eb691029fd76b23301024c2aa. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BKCOW2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ae53665de07a693de06da50c0cce7f86632688ee3ef74df68bdb172f4d001d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BKCOW2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53983b30b2e64c423fb69092b949ef7d27cb6840544aad0c4b94967d95196bfe. 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/BKCOW2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4462bd200bdea0a574ca2bc4a66eaed385257c81764210e2e3b4aa117862ad7e. 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/BKCOW2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ce4fced3156444eb536613d2bb2166e20395b71578592032fa4f3d00d83aa8. 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/BKCOW2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627547856fe9eaf516d2ef6cda5ecc185fd6feb88b09158a2a7c50faf52d9b6b. 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/BCNCN2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd912e92d55b99f10c3fe95903d228e0b1a7c4563a4d53191066de787aba4cedd. 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/BCNCN2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb996ac69b3581d6fd0b2219fac81868e18e4845481b408b26dffb4185c261adc. 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/BCNCN2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67be23afb0d7b49049cbd95d93ff9ceec5696da099d57287b74c36b1ec0ed2ca. 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/BCNCN2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fee50b3ac6ace35cb3ef0dcb8eeb29467072b11ac63d917d872a7e67ec1a42. 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/BCE0U2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bfdeabce53975b21b4be826a97fe1907e8044f933051af42b49cc6f5183f51. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCE0U2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5676a54a3d0868a3d6c6fbc441c48226b084e4f837659c72f6690e1674165f73. 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/BCE0U2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1579095bf48367039ccb610b8d22fa405c99cb034bc4fd0f35fb11a1688e8010. 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/BCE0U2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2736b0c8746cfa2ecbd5dddfb4187bad67ffd36c1238f3a5dc4b19e2bfc25fb2. 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/BCE0U2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c46cd4e1be38de4de728e7126d89e84a289f4e493453b795497d5b5f0b3bcd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCE0U2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403f0964f2eaed004194ad821d6a460efef21062a1e00efd30a42b75d64b6a96. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCE0U2300009.