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 0xa6f138e2dc9f4a5b50601ffddc50ecdcfa316fe416ff0a27517585befd0687a4. 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/f98817d8-66f8-4563-896f-ff92ab019ca0.json and https://artists.proofprofile.net/proofs/artist/f98817d8-66f8-4563-896f-ff92ab019ca0.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 0x2572a9925c6b1a57a6d752df57a6c22f3ec2d803b8be5e85a8b07babcae2f641. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BR9T62000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74af17ec84d5fa07c355a490823418bda98501c67bf16c88cad8d5983a0b1e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR9T62200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f08fd7eaa0e1c307bceed234c880f7509460cf72ae290c07a84e80e464d9305. 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/BR9T62100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa522417ba1cf9a06d4a668f9350008e839147dd9d801d808907463321680995. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T16:22:26Z), 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/BR9T62000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81589483043430447822a2875460402654c6fd7835f4727bbf5c2dc409a70df4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR9T62000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b74c6df79099bd9c13008875f25b667a7b74c69b4018fc8835bc2ef9cfcc2d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXNT61902973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777bf7854e7739525be812781802ed50b7fb53a3144e6d0f40e76768a51b01da. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR9T62100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4cf5b77d433e3a9ed1fedf4ca3191422e7dcd7f241b441febe9445572d34f3. 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/BR9T62200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea9e46401d59bf3ff9063a1eb7edb5d7e6c6dc2e414a38a3b3568686312b217. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRUM72300503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45f8aaa39fb44dc19741d3304dbc7f646e4cb56e215ac30395b63f66d115951. 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/BRVOR2300230.
Malandragem (feat. Clara x Sofia & Raphael Capelão)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b46896d069e54306a72e4e6ed87fded93c408e25373d5fc0f78037a267bf11e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXBB91800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4750ffb7cb90b4b0373598ebed38b9cd36e84132b4e6876c74a5a265383e539. 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/BR9762000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d3ea406797b34baaad6364655b9b8cc93425d7ef1415e478fee59cb5283760. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BKFGT2400289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9216dce1f26c35361ea70afc5a4a7278236a1262d71b175f52ef9bfe1a4d7b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXG9S2400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c020c79892eedabcf9cd2f91441f82b396ca8e8e17746e6ab5e537ca11db4de. 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/BRUM72301269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327c409cc3775556fe7a167123384dcefe780dac512ff4d535d822f6bf514069. 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/BCCNG2300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fe89d606f793c9cb8d9015bda738af112436921b5c6e1e6467c25818f7fc6f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAEI72300002.
Osama - Bruno Be, Ralk Rework Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef77e92adb9261e07f2b054fb0876e527ad11ed8b8b8edd819d43a1f359cc3a0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZAEI72300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08022163b9a4375991ff2b57ecb5be1f684c27be574551d136164c61aff36ec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BR9T62200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70117e07203ac8cb8a014c1f1dd3d5c123a4e5a62b0c6fbdcfd277ffb67c5cc1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR9T62200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f72a453c0508e9830560136533c0a9dba69d07f0c8cf19f635ca0bd793bf24. 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/BR9T62200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723f943a6eac0762621350a199d300493eb84a15d6fbd09040cfc6129e069fcd. 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/BR9T62200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a791714074855e5bbd3d0958b3ee862235b48d289a7e54cec968fbedd94713. 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/BR9T62000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4ee65474291c6704820ff9a02853a66e3b62b0bc507e15bacbf5fe35f4d1ee. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/BXHBP1900647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31c51d63e0c1aa5b72e0fc8e7acae2568ff243b231b3ded4ad916105593f23d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR9T61900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eafbb6aba609b0d4318920f183b2f07b693518273b3fa9d16bed983d873a177. 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/BR9T61900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4844026fa402ca28e5fa49d9889654fe12b0767e42bfa0386bf41ac034dd99ca. 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/BR9T61900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c5e05aa65c108601b8640a71da39cabaa147b1863d128f9da02f08b5e04da1. 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/BR9T61900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a0a5d07359f375df37592c054569fdf56107a0af3c11f411f81e33b33543e1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BR9T61800075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd1707416fc401cdd0cd9820d0c1058921b9ded7934ab506dde8e4719f7a331. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BR9T61800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1256703d2c5e925788dbf33bf083de3864dbfef10c72cfd8ea6fcba7c7d98534. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR9T61800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327c409cc3775556fe7a167123384dcefe780dac512ff4d535d822f6bf514069. 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/BCCNG2300065.
Quase Lá (Ralk Remix) (feat. Sorriso Maroto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4a1612c8c2125bb9f3bc989ee8dfdd78affb0528fbf206a502604bd0f13093. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BRRGE2011077.
O Sol - Diskover & Ralk Radio Edit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8127f66c5e6c42d371e7a8a07a0cfe053e2422d6a53fc3546dedcae868ab4c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR3751700160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9dc939fcb4e5f1f33cf9f5528c0971e4cc5f56bd0dcd23b086ec6ee472b4dd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR3751700161.