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 0xabb1144606c06720f3e0b043c7732b0ba256669c800d65259592663165c04540. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9a6942d-7261-44e1-b2c4-be8e54030adc.json and https://artists.proofprofile.net/proofs/artist/c9a6942d-7261-44e1-b2c4-be8e54030adc.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 0x189377ecda4b743805e022638bd32646eb6a1037f70ee9f2aca8c14c2225ef6b. 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/USYBL2001378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88cbb1670b0746ea906f5efc011818a262ece5ed948edfe57e9cd8af0b37ed4. 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/DEG932302181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e09621150fc8beaf9f0cf9cd97ef58841d23e4024065c3f7c95ecdad937f7c. 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/DEG932302184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847bad02e12ddbde6b65b1b2acac2141a34b7de5c92672e36c12735563c061e3. 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/DEG932302187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4038836a542991518c86f12cb3bccd9bc8216b6221f6fbe25373c0f87c183691. 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/DEG932302188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc489ad068e5d826c6aa02d0f4df0920612b4b140f5b0a0450cb52ebaa2d0522f. 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/DEG932302190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39da3eefe1e4a78d8b90b068ff2b44559dc71210995b62bf0c34dfa40556b2b. 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/USYBL2000766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c8f8fde52d81f8c8b2c9218437f210d10677923028be8330018ed322a40f33. 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/USYBL2001017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd4589bc632889913270e949b1f6a81c4366f73c627e00595bff3f1382e0719. 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/USYBL2001019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d60b1250b8a059c9d8a6a56a215f6f44df81fc59e348d6df69bfc1495da96f5. 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/USYBL2001024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f33a7eda765b698f695794ed4df97c025686b893802c6e2f93e8d2ba5e5c255. 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/USYBL2001592.
Attraction in Doubt - Gabber Eleganza Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957feca5f68554e108a7bc7402d188c811684cc263c54c789ced642edbccd304. 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/USYBL2001593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189377ecda4b743805e022638bd32646eb6a1037f70ee9f2aca8c14c2225ef6b. 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/USYBL2001378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98940cc8999c13167ee6a0e6a50ea1da70fb7dede8a1e1c9f6105fe9a76fe0a2. 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/USA2Z1611589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a01caab614c19a27d1b79392d853a3228fb62f19dc25446813fd34cd9ec447. 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/DEG932200543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fdabf404ebf8f7baad25f6dc3c481cf840d3eea9e8e3d88839a62ca820678f. 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/DEG932200548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bb8d07f942fd4c1be0f544b215401e6a191403f90de432d33d477a359c7395. 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/DEG932200545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba984e44c3608cef0eb00e4df0662e9962ed3f7119eaf099d8969860d959213. 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/DEG932200552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3ae6ac0246c763efb44bee7c6e8be153aedbda1c58febc7df26e5337ec98f5. 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/DEG932200547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff75fecd7eab0abca9998626be4af0c1eafb737f4f6e2bec8b239eefdacfcdd0. 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/DEG932200546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3f1a4ad527550460cffb69acadd5117ef0bac708d674af64ab52a7e7038f90. 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/FRS182044439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0a57f97e271a339460c59e78fbbaa78c4922a3ae4b48598cbdbe8c3644b1b3. 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/FRS182044446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a19e0367046755dc896b12ab4db887d3e07f815fa638a3e555b758e27e03a43. 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/FRS182044448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eef40ee37db610e9607b53a25ff21020dceec3aea2ece702ebb0cc9beacab02. 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/GBKQU1558826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11987326cb7445ec3cf48e65960ae360cf86ac8c51453369ea32f5fad1a93421. 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/GBKQU1558830.