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 0x7aa472e2d9f2cca2dc16450ee057e355a053548eb859234590f56f76e3549eae. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/69f2f185-44bc-4925-8ae4-f905dc139907.json and https://artists.proofprofile.net/proofs/artist/69f2f185-44bc-4925-8ae4-f905dc139907.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amdavad Rap Life: 2 Heavy On 'Em, Vol. 2
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 0xda637eb6072c78d9e93615d896d807272d5195395d3a23f8be37a958cc081c10. 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/QM6MZ2412951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f400bcaad8738995c02f11a30724ddb4f57803b6109a24dfb41d28bb6f7563. 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/QM6MZ2412953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb294cd13e659d6b8b6bfb590c80b7612e9c3d48c5a5c32280215acfecbf70aa4. 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/QM6MZ2412952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc0099c9771721ad9838b2519ef12df4cea22b5999eb4e977c6a9dbeb407459. 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/QM6MZ2412955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9813164e73c071f8627afe8fa752ab75fdf69a09b8cd969443998edb5da2e1fc. 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/QM6MZ2412957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6a1926b5e1953961db868e28aa3b75245c7270dbb8d9859791c39a87689d54. 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/QM6MZ2412960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2020d26f8bf4d55d155c507b91492d720a114e4f525f22269840e99627ec7e87. 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/QM6MZ2412961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4615b274fdbffbc502a9b11b35d21927b96704f4919ee5a026a00c23504200a9. 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/QM6MZ2412962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43913831349d2f6d2ed00b914faa24513aa188ce2b12574167a0a46a56cf6b62. 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/QM6MZ2412963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872a9a31053d8a5caf3ee1adfcc58fe8a742079f2213f9996f6773d6566f059b. 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/QM6MZ2412965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1440fa764bb021d8a84eb05c66399feeee6eb55cb2539c40cf74fe70ae652ccd. 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/QM6MZ2412967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d83f4ddd5e052577dc1946b8658ed8c3e19af6b98cdec5bfd9792128d8e7c4. 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/QM6MZ2413896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccc9a21087ca4434061db78d5b25269bd5177474d92593316c04d604a444efc. 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/QM6MZ2412968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696c8512afa75bc445cc76d37a5b9b7cf29bdc2cd216e1ed0332be86f42b4359. 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/FR96X2246565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d2dfcf33f69e8d3431dadfe0c556bd548da5a36b324ab9292a932e14906653. 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/INUM72000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacad4ce03f2424509b6ee5b912f15c284b1056e211f8bcd2c019b6fc58eb1758. 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/INUM72200173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52904f585b40a13203d88c304bdf9c17a35a8f136742789ed503a3714f31687d. 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/QZDA52006736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5396f960a4610c46242fb277c21ba5c3ce5862c45778c2fba681a39155c148. 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/QZDA52006737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ded50804e6e8e15622bc2ce7dedffa1d5794aded44125c996e91fe1306c31e. 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/QZHN51951259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d369cdf4af423438ff04ea09617473081a9a368224d5b87eecd2a840118796. 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/QZDA52006738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7eb8b1110a9019215476eb0a7afb0f8531cc5acd664e4d9a6fe0e75a567fa1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZDA52006739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cf89df93cedb37be62b6fd5c7b04c426afc1fe997169552944907ce6822646. 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/INUM72300434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c84b0eaae11dfb5b335519d7a16343a07c2a5a07169fb2109053682c3000755. 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/INUM72200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c84b0eaae11dfb5b335519d7a16343a07c2a5a07169fb2109053682c3000755. 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/INUM72200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d062ef825eed9490ea0550e2c0a2dab1d71eb9abef144662378e5f61ce392c. 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/INO132101948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e538a4a458fc2e87d00e334dd6cd591b00527522f2c8dd45df563850e23c37. 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/QZFZ72008369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bef1684665b81b34ed4c82c3bbea854836906fbefde1f650f222f670f59c28. 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/QM24S1920815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4128221d6917fd3c92b1b140125a634e669a481970bed3a2a52443834b2e6375. 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/FRX282019574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed757961440ad6a7dc058e147fe741a687237d80e2a9bebe3ad00d03e4513bad. 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/AUBEC2025145.