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 0x14041cdac3ae08cb4b4591bb22763070354aabf37fc2afeb88f7de47d8544c9f. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f853d344-f415-4ad5-9296-863d05383a76.json and https://artists.proofprofile.net/proofs/artist/f853d344-f415-4ad5-9296-863d05383a76.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 0xa279632267ec0788ff522742a31a41ecb8254552b5cebddeef5446f87f4dff83. 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/BC6NJ2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2cecf96da84792f44ff900c768ba9c3ab3fca7d900caa461c65390cb72acb9. 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/BRUM72400623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd240e959be71dedb2a0fbcdcef433940652f4f10a2cd44a735df98d26bb7048d. 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/BRUM72302089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f31e0bce6af7c49a04de45d2f6b105b435679aabc3f651954ebe5e9776b53d. 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/BR9Z22300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677f7bead06fd9ebfdaf63d2f0778a63ab2a20d083e7796527152878856f419f. 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/BR9Z22300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde3f6b3477373967d1d5e8a6805aac36ab5e997a9830e3f3c2bcf605567733c. 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/QZNJX2169564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fc7ccae893de21168f3bc04a2030fc8868825c42e44298a2236c4a4d997ae8. 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/QZNJX2169567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd240e959be71dedb2a0fbcdcef433940652f4f10a2cd44a735df98d26bb7048d. 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/BRUM72302089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2331b779fb66694b1aa2c8c6c16cfe17d8f7f5ce3631219f7064c542020a7bb3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRUM72400825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359a1a081da2bfd90781fa63e34e4acd9879bed623bacb0a453e9e90ea1f111d. 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/BRUM72401928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2cecf96da84792f44ff900c768ba9c3ab3fca7d900caa461c65390cb72acb9. 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/BRUM72400623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65fd168119ff1bd75fafe30548c11c7455dba3a60fbc60ffe7e3a6b7605711c. 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/BRUM72401934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8cffab1f83b10b462c3732f53d618f04a627104bf55b581f8ee0d7a5f8480d. 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/BRUM72401935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2331b779fb66694b1aa2c8c6c16cfe17d8f7f5ce3631219f7064c542020a7bb3. 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/BRUM72400825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3973dc726cfbd51894fa31de5ec9e408cf20c2bdcf0f9804033df1c7a8bb72. 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/UKXN22200218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7d7aba9f4fb6a13abe526d1fbcc51b7eab8d96fd479765d682081a74e2d83d. 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/BXCKG2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfdb48694ee816f302e934e0e41a4dbdb5f770f80adcfe7d6d3dd572c0950cd. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:15:01Z), 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/BXCKG2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b39f9b690c7743d9041e77d60e90462a7ba396aea1fc1b501b7110d057e42ca. 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/BRUM72400938.
Acústico Altamira #25 - Esse Tal do Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd972542ed5858280329406b7d16435e860d0393a1e97252b04d0e177b1bce6. 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/BR9Z22300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9657c8e4c63b30cfabec3c0a78c4371d2828556b5e1a3d111bf5a0374d8e416a. 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/BXCKG2400015.
Cypher Sp X Rj - Olha o Tamanho do Problema
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51ef77aff42ec2fe72a3f136486eb60558a7593c63a37f5862e09c0a365a3d4. 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/BRUM72500299.