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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd48c67c3d5c26d346ecacf3e7278349e7cde9de5c834ec369be1a33e7f9b46. 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/0aa51d16-80f3-4d05-aee0-f774e32d1eb6.json and https://artists.proofprofile.net/proofs/artist/0aa51d16-80f3-4d05-aee0-f774e32d1eb6.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a3e6b5e12a8d1abd7464de5e525b9c1ef453940ff8949f1df6df3eb3dc5123. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/QZNJW2461288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ac1e46aa1b1cedbceba2f4678fffc0612f0be5ff9af80ffbe063a9f6315466. 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/QZNJY2470646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17da0b5f731c85f361c2b18f80d22d22e678e535bd25f9969ecba78e42fcb99e. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/QZNJV2408881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492e1dc80270df241d3b7dcfdd2caa25e4d15673458e594bc65c66ed9b1c3889. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BCZ582400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f972f0a4310574b84d7da6a9e01ced5e0e77f48018e087860a7bc4f7dcf3c7. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/BCZ582400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ebd883ea681e880190812dab04c2f052056aac75570fdca5b78740577aa3b3. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BCZ582400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8644fa5edfdd59ecb694a528ef9f419fc29356b88d43654a7a298dd40a6b1ba6. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZGLM2408778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213fe80b818c1b42b8efbb615d22575e5d8259ade240fede22a6f8993152302b. 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/QZGLM2408835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec08f120b1f50aac922307329c50e8ed4ea4a28b20a20232c19d17fe9dc4f83. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZGLM2487646.
Mandelão dos Bigode, Você Ta Com os Cria do Cinga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3422c20ae1615c56e352c8a856f273aebd57a5d1233e7b5f7ce863bb13627ac. 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/QZ5AB2484424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4670073b464f437df332d107acc0611ea77ee5b368b9e132abe7ee02b2c10cf. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/US7VG2494340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05762de8e2a72d0ec53f4fa6123e94c70ca093e4c74498cc5adc494c251ba15a. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZ5AB2422726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848d4b7ffcaba027e87f15c14f40a99d921c39f7a1ec8f7f00cefbede187debc. 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/QZ5AB2450936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8537cb73844e07e7c368f8d20d016ffaa2b5565e27fb3b5cc8a535d0a6c3c3. 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/US7VG2495210.
Beat Aterrorizante do Helipa (Slowed & Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0c8cd03aadf9a6c9cf257b17d19738434071db1632448d6a3599924eaaa695. 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/US7VG2496843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b72697c07d6ed3a78a3a2d32b3ae251e7f5d0ad658b19b45edccb289859aa2. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZ5AB2401720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e730e328fc6dcca8aecbfc9af9d6febba3c4b25fdc425f10bd8e4ffdb0ff5c1. 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/QZW9L2346947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e1737e9b8b97c02551c423b3ffd61b93948e7ad4a909697942d2b812d256b8. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZTVM2363073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8727bf7e8cc1073436760d67007007ea8a26c7cfecfb59f41c1c5212df754384. 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/QZTPX2355118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af9b623db9c6855c707880ae3451c6d331293e5efe94b491de67bab26b15d66. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/BC3PG2305992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c341fa0d632cb6b54ab7d839bf99d2b6f538c79f6554ca05a55cf4ca65b5cb7. 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/QZNJX2315059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d25dc718b269a2a0fe85b79b043e2b234155ec504c101c5d0bb91e55aa3a677. 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/QZNJX2310439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d66ae8f558a2f736814a09d40797fd576d0b5834fc6d612c9977494f3bdb5f5. 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/QZNJX2310445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a8b6238f08f41a921f189f9a815010a9844ce1cc8b901c1f3b1865804fded7. 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/QZNJY2313178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a4bb805701714b59d79d2db44252c4509bb5e45d1246866bf72971231a045. 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/SGW502305911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81b76be0b56b77229d6258fd81806ccfff21c3c613da111a8b2b98411b71f4c. 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/QZTPX2497229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2272a1c1ae2aebbbd267787b2a5d5f8ce98e794e9b70e6b3d2f91e9550842f. 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/QZGLM2575005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58365d3c3b17569fb6384726969519dbe250359641f197e84e60e3dcaf53e8d7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLM2535281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20e105a3d199f7ac4eeb4c60de96bc052a1bc5fcd34c527bc44ad49479fa57e. 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/US7VG2549842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142c35af02a61974473701b3c1da3ea630d2d33e2a5aa8456feabe2b3796f4d0. 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/QZW9L2409789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f8a269fffd0b79a0ee8e7913fb879c14844e1907b20d868b5e30c3c937a2a1. 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/QZW9K2421405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0065cf97002110f13d507b4cec1e51721456c1a8b1798390b92fc9fc5ffafe. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZW9K2411141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285fc639f22e5cfdec833c11d258b190d76831e9661642f42802381ec7c1f26e. 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/QZTVM2439829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cb711cbc82f4a687477bc85f57343cb7dee5ebed5d22c79da23e6fe8b679d2. 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/QZMZ92315507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20412a9119e7644b500ee8c195926b9d9185c31107a7dce6126064786b4b1662. 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/QZ5AB2307506.