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 0xced68704ff04c1a250aa0085f413526c5e93bf6206cfbd0da0756f2b0e8b6c59. 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/7272c9df-32bf-4733-9dab-42a74e0c9e47.json and https://artists.proofprofile.net/proofs/artist/7272c9df-32bf-4733-9dab-42a74e0c9e47.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 0xe352b959d6b768e9ad79afdd289c7b46744f0cce49ae8ffd90f45c7276aa5c7c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN42019873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde123c88d5686a5527edcdb3249e7a994505e5620597e4f0d5e10d62b06e5f7a. 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/QZHN32131232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205a8b3b7b68994c03f88ca8315e986f8d1d4c8a0b09016c08eed190b6c6841e. 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/QZHN32131236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6ccd3eace29fe56efa2c38c6b37d233614a7dc138536cba32036ee4d0ce4fa. 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/QZHN32131239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab16ef0a0401cc418cfb30cd04d6d1da4080c47713704573bc7432040f983be. 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/QZHN32131241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb5b2581769decbf987f1cb1743f5efe09bbee10a7592173c72147e84496352. 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/QZHN32131242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a284de3b891d92b44c15ecd1b6a4a88f6e860123f5859bffc2c3cad501eba6. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZHN32131233.
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 0x3492f1152865164152463f2cdcd39289c86de9ef21271a7b47264d9b3c5f0c94. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZHN32131238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4190fd190d4b42c26f1bc218b6c92b27b99b04b1f4021a05e76997a5e4fff657. 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/QZRP52135328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c32613e2c7f73e93dce42df69f7daec68f9c9e7fefb2c12dd54a6463926a5c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZRP52135329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7a9017fdc3d3eb1fdd7edafc369f9ebc26b4390f7148b5b6f2f1521523bc7c. 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/GBNEQ2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20749ba493052f5615cfb31a86d7db0b593f091ba3db234cb7a973400892478b. 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/GBNEQ2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3feed45e27f96e612d6cddf1b750e04bc540682b77941bc86f5233c99c0127a4. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBNEQ2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90f34ba9be034f24da9e52ef8f444c590da1a42dd0ef7db05ff51faadabf2bc. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBNEQ2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb62b06fcd949f9de6559c8dfcb941f56d05cfccd5d96a50992edb39334e4593. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBNEQ2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0c03633ab6d3aef8763623b902839f179f526ecb171f1eceed0122ee178645. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBNEQ2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94e71ac604a7482c3396864c5c46dfdfef30888b85adf4cdd70e74701c12125. 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/QZNWZ2300984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7deac1f491cee31a241e0e072b86b8e06d687a949ee2fd566c1b90a3379b686. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZNWZ2300985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433fd9ec5a151d8e27b7a319fb979e99ff2ecfee9ce6e9ae1102d05fe0b7e6c1. 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/QZNWZ2300986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88778e126ef3cb1c6cd3b8a0a32fe50b225b83ef5ce225e6a58ed00cdd875ed8. 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/QZNWZ2300989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0790b49ab66c7e3881f822d012d285ff4600d7c40aff6bd90983debb9cf0c2ad. 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/QZNWZ2300993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac302b44aced4f0c82b39466d51e6addf16c7965b6f0d75ab67e19269c83556. 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/QZNWZ2300994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9716992d62ee18a5358bc112c9c83c74e127a3cd6ebae7036b05cd76dae674e0. 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/QZNWZ2300997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e99e2b41bf5b54f7ad0a87373bb751c85fc27a730ec821cfb661e4b98e5af3e. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZNWZ2300983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f94d7805a3294bcb2b5c9820802161201689de8252343127f04535900ffd08. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZNWZ2300987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c5ca86ae551676086ea58bb1ac40722e427e59ea33fbad64cf3ced84b5ca1f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZNWZ2300988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc54b8a26e76884dc65baa01967ecf517d365c31d7195b6134ccc28811d7bae. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZNWZ2300990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89113f3dab804efc613259d72866742538e8a3c9ab92bd8782392c8a26745e9. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZNWZ2300992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4ebf5735ff8d92201e35fd21d74900e87e36ff637893f207d847c04ba77e2d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZNWZ2300995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfe45143dc9482f918314cd84be64de657493695c0a83ed563997ee7e6712cf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZQAY2511860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034b36018403bb1707751678b2a6775365129a627a5c3f60219553f6bd32a90f. 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/QZQAY2576041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5259e64768e38008d4bf30078da779ee740c7438b9b7e75bc1a8bc9f70692cd1. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:41:56Z), 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/QZTLA2515372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09b72013e96d144b17ffe7492b185b22e943e1c6fa95765bbe54a7264d15b83. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZQAY2545225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe699c01a04f19bf94cf1df4c077c6f243a14238ce6c6b8504b8b2af3da8d7c14. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZQAY2533871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564e2a0819e310868274623a3f74f9e6d45798de9eb4e56c914b187e7f1ad133. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZQAY2586611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c669e2d48a6d2b89967bd8d7c9952d53ed4a9119abee360b7ce60b033003d34. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZQAY2506957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3523614151fd508e8515496d903a021792d7fa04cfd4b16e0d22c2ba88b3f1f8. 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/QZQAY2577186.
Wild Cowboys Revenge (feat. Rahiem Supreme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc150bfcd66f889d01184e324f157244b90a5c6e4af2b2142b3de8d95f0e5b8eb. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QM6P42495224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e705a0eb764b6b23574feb5a2b06e528f5adf0dea7b56370437e92b59a5547. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZK6F2420570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e75c471ad6a2116b2cc121c66517188b3c8f6b9675a4d5f74b2c91c53d07fe. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZK6F2420569.