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 0x0c247e6f4adcd72fb9f758e31529ca35e8683b28c87e69cb4ea3e94da795039c. 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/64ea7eb3-55e5-4cb4-b481-947e37ad2786.json and https://artists.proofprofile.net/proofs/artist/64ea7eb3-55e5-4cb4-b481-947e37ad2786.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 0x1d28ad05e6d08e9df40c10f70016660bb94d2329c4ee87f8a051f997eb586b19. 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/FISMC7700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace9c6883ce2e2dfbe7a38a86f64ad711bfbcaaddf28a5d38f03cfc9220a4c89. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:45:06Z), 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/FISMC7800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2260b0f27e6997f90751fc058d24c5811f28da0eaf1ca16406bc9875fc2ed5e8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FISMC7900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f752f3c543a57c686bbaf27ea6f87e41a61ea12b727f4f713397dd1adea78cf. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:28:59Z), 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/FIBMB8200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2384e293b45e2a6417f2bef086f81cd0422204b0fca1eaf02973414f848a3e56. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FIBAR8200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455fd1ab8bfcb843ce0bb9bd108c6a61d96348f39c12a3d8342deeb01b2143f7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FIBMB8300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c15e06f57ea3a2a8210bb16f861797b5975bbfc8ab6bdf0eaaee2ee6d41b32. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FIBAR8300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4044a65bb845dbd9ce988ed56e9a70da9fd0cae0311b61be936db9aec2549e96. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:49:21Z), 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/FIBMB8400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2beb8b4baf77810849f86b7624278558e198869dbadc3c73fea0e5202ada29db. 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/FIBAR8400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb1db47ed3396cc28ff1cdbaa9c800c0bd230343607edc4f413d4230b0e55f8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FIBAR8400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7904982ffc5e083ae9b04759958f2772b68ee2f426283479d261a0286cc042ae. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FIBMB8500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b4403b47c8e1bfe5d52281d1d90ed7ff1720410f876338dc1fbcdfc2d72921. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FIBMB8900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1450e5bfc5f394053f4fa2c68446387b0fd356931b0cf9d6975beccc3b97e256. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FIBMB8500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2699602c1febae39621ad36440456490f9cdce83dea9163555f8ef56c18a795. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FIBMB9300404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd75af45354a13d14bbf35713fce4f4b7b4bf5a8898768fa9bf82455819b308e. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/FIBMB8800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe191cab696fb632c9afd0c2daa29284bdb50473cc85830c7fae96ba2deb6e5f1. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:19:18Z), 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/FIBMB9400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab8d19f7a7a100d3b66148a4ab8135f0fdb33ef6f65d98b960fe8c57e0e5c65. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/FIBMB9500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876c65faa1875002eec976061919f0fe631e943f38fec1ea03bff194b595eb56. 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/FIBMB8800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9424c2cfa1862f413c400b5b2d3ad8af43566a600f19267661069ea4dfed6b4f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FIBMB9300405.
Toivotaan, Toivotaan - 40 Unohtumatonta Laulua 2
40 Unohtumatonta Laulua 3 - Kaipuuni On Uskomaton
40 Unohtumatonta laulua 3 - Kaipuuni on uskomaton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f752f3c543a57c686bbaf27ea6f87e41a61ea12b727f4f713397dd1adea78cf. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/FIBMB8200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd75af45354a13d14bbf35713fce4f4b7b4bf5a8898768fa9bf82455819b308e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FIBMB8800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfd60885c314927acefa9452a25f2113d8ad4b65ecc31f69b4086a411f6a655. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FIBMB8300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d28ad05e6d08e9df40c10f70016660bb94d2329c4ee87f8a051f997eb586b19. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/FISMC7700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158dcc4dbfd4668ec45cf1a481b59bc19d0144ee2bc3913b228b3cdf455de802. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FIBMB8900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7904982ffc5e083ae9b04759958f2772b68ee2f426283479d261a0286cc042ae. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FIBMB8500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87a03b27082ba47f73f8a404ed3912055b9bab52a9c060f672451e44a2c5306. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/FIBAR8300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3072d2d3afb28aa64a7e68bf62a7254ebb90e9c114b31c03d8f3bb25cc237c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FIBMB8500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc20104b956e297a35dde161347a7f413ffd7e275bd51dee828c09b54d458e4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FIBMB8400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0500175642779068f1ea155f4ca0f2a42413c2a974ece3f80f10b3d9bfbdd14. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FIBMB8900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78c5ca5e3a93c2ad2933d2029263af0f878ed4aeb39b8cfc00d7716d26948cc. 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/FIBMB8200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0acad43102b09a84444dbe3e0a69774857d0036840e8b5a721194a0769f11f6. 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/FIBMB8200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c986f9b880adb680d991732cd389568ee0711aaae8987fe02e0ab712dbd3dd. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/FIBMB8200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b4403b47c8e1bfe5d52281d1d90ed7ff1720410f876338dc1fbcdfc2d72921. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/FIBMB8900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1450e5bfc5f394053f4fa2c68446387b0fd356931b0cf9d6975beccc3b97e256. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FIBMB8500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8f9b6410611dde0a5b5c2fb0a46f9fa82b3798dc2ef9679d142ff72e5dad61. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:38:29Z), 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/FIBMB9300401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace9c6883ce2e2dfbe7a38a86f64ad711bfbcaaddf28a5d38f03cfc9220a4c89. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/FISMC7800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29498c300242bae91c9ec54e410333e969e9880883ed6c075f18fc8db64aca79. 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/FISMC7700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78c5ca5e3a93c2ad2933d2029263af0f878ed4aeb39b8cfc00d7716d26948cc. 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/FIBMB8200102.