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 0x26f931e9d3399ace7587ca240056a6b6b0e017aa8673b54a66da24b105b75b60. 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/8efdd871-3cdb-4956-9c8a-fc170b46dbe8.json and https://artists.proofprofile.net/proofs/artist/8efdd871-3cdb-4956-9c8a-fc170b46dbe8.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 0xbf7c1dcaccd30a5842159cdb3630fd6f8f334178d74f65cd6629ad5fab11ae8e. 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/NLR9F1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3b92f9f4292b416a9d5eb1a7f74469221bfea8437c8524e5bce035dc4bd40d. 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/NLR9F1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20073da9eb24ef377a5a59a44cc3c69fd9415cf46aed8dce2ead09fb2d3b14e1. 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/NLR9F1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7c1dcaccd30a5842159cdb3630fd6f8f334178d74f65cd6629ad5fab11ae8e. 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/NLR9F1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb704df776095a997113cec46aaa023ff6ce60e833d3c45ca3c4c195a44981011. 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/NLR9F1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02fc84acd62609dfd49b416df4e325b190b1512d330086372fe9e87d3586b76. 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/NLR9F1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3679ac51a65aad144453256c384999999c241e1a58674915d640499eef4b079f. 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/NLR9F1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dd2f9e519dff7cbb844516371ed72301685f046e6f359c805baa363483c397. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/NLR9F1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731f227927b0b5962139beb67ab697f2ee10cddb1b47fe9a29be9a156cc48239. 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/NLR9F1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b3214bb2056f9f49896359d3505ebe9f0c5d9b5083df8f2606de6ea7fa04a1. 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/NLR9F1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe728e18d4c4b6a9956e7f2ea616c4690e8fd25e6564688ba1f52c580203551d3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLR9F1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4a62e281869639c4f2e9fc920698f81608edfddaca02143000ee02c4b38419. 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/NLR9F1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5031a26a1f9b042acc7af638e2151f82b153b1fcb6d0096cebc3e9375573c1e. 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/NLR9F1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fd4edb6a20e25a3f0b259fd162c9bc29bf7de04f148fa6c74bea3ab599f30a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLR9F1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b0ae26e803f8950746ac458bd669f02072f4e33343879fea5512793ff2a56a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/NLR9F1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2d4c50e5b79cce3b55ec666bb130c0e9a03ce60882ee530eac3a22c27380cd. 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/NL71J1800010.
LEMONADE (feat. Chip Charlez, Sarita Lorena & Revie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef9616dccc83172956a6d57e3ba906b9da8c9c301613b59a5aa989da4c72d1d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/NL71J1800011.
LIEFDE DOET PIJN (feat. Sevirio, Rich Kalashh & Elijaz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae137ad7a0044c2563e97e39944060446af0098bb374fcda605a771879958634. 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/NLR9F1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e45a614ffaef7009e93c7f7e15957726869abf005e9f96a5841de5becfc431. 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/NLR9F1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2d4c50e5b79cce3b55ec666bb130c0e9a03ce60882ee530eac3a22c27380cd. 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/NL71J1800010.
SEXY WAKKA (feat. Jhorrmountain, Jozo & Hardy DS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c055c8d5234cda72eff0f9d5301cb6ebe4e757c4f4e44ad4b3ff04ee58a399. 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/NLR9F1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4556dedb5d4e70d7567b1be3b0cc436a7d3bdb0faabb0030bc667634d63f45c9. 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/NLR9F1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1f345dc5341c0d6f8e692e07eea740d3362924d3c6936408a1fc52c9861cfa. 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/NLR9F1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d5035134e4547d6606eb77bf95b51de5d1de764c2c79fca0d30728e3dee743. 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/NLR9F1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fd4edb6a20e25a3f0b259fd162c9bc29bf7de04f148fa6c74bea3ab599f30a. 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/NLR9F1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0491956de9e3a89ddfa4bd482aff8cd91a00306944c87591a645aae33a4b92ca. 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/NLR9F1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef9616dccc83172956a6d57e3ba906b9da8c9c301613b59a5aa989da4c72d1d. 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/NL71J1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73982539f3a629b4f379d5cf54a9d6694b702efc7d5fa3c812b8a817bbce12cc. 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/NLR9F1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf685ae0410bc6138dd2c1858c8973ec74090cc2eb574b36d6ebe6ef92422f603. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/NLR9F1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869da6068654b90ac1ff1eb51b7e851e1ca0324c709fcaa4ddc7b9feb6c716b5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:19:15Z), 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/NLR9F1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7865a8fd03d565a521637d4b0b9c7ea12e7213e08c41d9c13fc032dcf8a83a3c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NLR9F1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfafd7f09a1ff1cd9b966651e329306209b46e3ef64fc456fbc145244b70574. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/NLR9F1800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6811a86a7889d737c054c42baae23af05a93340a7809d89b2be11c8ecb336e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLR9F1800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042a46dfeb51747b5db0f57f01dc3bd9d5a3286722afeea28676478402360732. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/NLR9F1800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d46efd287f2edaccabe54362eca0b4815abfe16105d83dc1f705d966fabbab. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/NL5HJ2500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3412aa6e70bde7521b116d48c029d7ca9dd708904127312168dd58b1710eed56. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NL5HJ2500091.