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 0x488a3230055e8c48addf8cd4270b90fb6af9a91411858bc65872ca73c65234d9. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a488f7c-af71-485b-94fe-0fae2f5866ff.json and https://artists.proofprofile.net/proofs/artist/1a488f7c-af71-485b-94fe-0fae2f5866ff.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 0xcdb489a5c5e001f999c1b41de6f75fcb871e4f6ae14f6f13552f8d18cd70b7cb. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GX8KD2493077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397362a91eda950e4f68453483a80aa9ecefec26f0638aa533516125ef1a8f8c. 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/GB8KE2328106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0aeed406cc48fc14e05295417339fff3319fe3f1f65d21d13163ffddc3b71c. 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/GX89G2476154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe431d33f5724da0ab717eb87f59a98bf185d47ab15d08fdeee2c6acc7daf2b. 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/GBZ4D2300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dba9f7d69cbd3f76b5a7d4c809b878c7285d43b0887f10b1c0879bf17d98d98. 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/GX38U2392879.
Na Stage (feat. Magenta & Brejchus Pavián) [Vocal Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c443455d1e082e914376d481c388caf1c99c7d7725b1cdf7760041dd41c14e. 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/GBSMU6023479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70e179a36ed730d2e34580754f2eb59bf3de7eaed3fd851389811eaea38fa33. 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/GB8KE2205193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa387f78907f05ad4f1cd34c1570524aa9770ddfed025f9cc76f0616467f9bc95. 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/GB8KE2205194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0407493129b0b54bb6ec8bef7965183f0043dcec59e9e0dbd98b7c113fa3b1. 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/GB8KE2205197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ded10afaa054749cceb9eb413f179d53262770fa8419eddc245f4d13719ae1b. 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/GB8KE2155143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf9fe3c6ff733363358bd6c93dd930fa3c207cc5497a3b4fc31c71e82232a69. 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/GB8KE2155151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3507bdd033fbbc10aac10fe7061a30a25c03fa9485cfafc0778cef56424901. 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/GB8KE2501927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ddd7f3c24cb9f7434bb6f6f0f255c13d52a9adc3ce817a2b1e195a81c385a7. 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/GB8KE2501912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76ec91f4b5aeeb7b7f65262d79d3ff80938d33dd60854d6a68e9240485e747b. 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/GB8KE2501916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c2ed3db141f6c44a4eb3241c7b6ae361b7838956313e5322928eaf39c520b0. 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/GB8KE2501924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe651cc969c0d8bf674ceaa22c173688b12ed8964128b0a199705b1888b819113. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GB8KE2501914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf608c1bf50b29c981adca5de99e55d54b302e6d3d753ce82b63e450dbf05a51f. 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/GB8KE2501925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67abcef02d621be5f1c2eacca4e2fa39065094ac4ab039034f100d3527f03e55. 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/QZWFU2456072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c795fe8c11600048ecc51a2195e26d28ddc9bcd057f8756eb2135f0cc3d7a97. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZWFU2456073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0217bf5168bf906307dd8f6ee3ed9b92c1774b33aaf4fe451cc0acee7dea8892. 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/QZWFU2456074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc37a8bbb285974f71c7c0ee9e8bdf05dd0135796fdbdd3057dbbc5c71ebdb5a. 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/QZWFU2456075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5eb8f117ec668b5fafafb85ece4185891fda9523fa6a97886206deeb912016. 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/QZWFU2456076.