1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb79e4fe75c208817b61c95876ffd5c2f2e8a159f3d672cbb6a887a61f4601803. 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/05f66c03-3561-4ddc-985d-b341b2f9b269.json and https://artists.proofprofile.net/proofs/artist/05f66c03-3561-4ddc-985d-b341b2f9b269.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 → block OTSBitcoinBlock must exist at that height 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 0xa91724b2447b97c389ed1700b4af0a6cc33676f6922cd4ad63768e7e2342850b. 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/FISCF1200008.
Time Flies When You're Playing the Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5dca8515ae523a1c056d03f2a657b67ea15af20a91517cc40ad8b64c65843e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:41:20Z), 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/DEMM91800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40e23da76a62c2c2018e63975fabe2d891e1948d9d9de1ef38e6193ab246b7e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEZK42100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe32131f397acd8f42fbc5791fc28fbf42b34975de19bc8018acdcedb9d4f87a. 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/DEZK42100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce925bfff658af807acd989c521c0516bad07f1b970337eb44050220bf97fc1. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DEZK42100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b7273357dd0289296649d991b5de78286869e36041afafe726ea3bcb4952c3. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEZK42100165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371bf04cda4206ac30624192b09efb9bed8d60f46fa886135e4368def31d143b. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/DEMM92502005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322d6ec91f36b065b26c0814aedd81bfebd1c99c446fa004c2b663bc1d0ec51f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEMM92502001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3442bcfd1751e5a587ba1b251126e4c0d57b8aba36ee25b6706122f34c00e8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEMM92502010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a3255def3580b0b1a6f21d07b181de53ff6145f12864f869c99ae7c1b8f901. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEMM92502003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b57cb9c6464c7602ad0aa6df80beeb79535bdd129a5bf52adde9021a73fe3. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEMM92502004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371bf04cda4206ac30624192b09efb9bed8d60f46fa886135e4368def31d143b. 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/DEMM92502005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda73611a349b3c6b7e04e9aa5c1ee7a2d79ccfd0dd1f754e4e14a9f0b61292a9. 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/DEMM92502015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc20c299cf7d8a1409cb7715d8482d4468c3ba11b550b3fd9e1f9d203afaed1. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEMM92502006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3c2bed39d7ad6d46721e775a762a838221752b3a9d950133f7297119a8745f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEMM92502007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc133574bd869b4404a975efa91b2e0255f2a72de39abff162660a708bd03ce5. 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/FI53T1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e456c42f04f292d6fafd47c966f560e3c84bd6026d6e63b7c19cbbff2038c35. 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/DEMM92302004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab8b3477b755634dc824846e0645fa218a5806593f7827eef0d016e3424af31. 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/DEMM92302005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7992af2cd8bb676f0139b2a5820c4b7928d250d5c80ff28bbf3fde5cc39891e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEMM92302002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e69067c37e3514b24ef4c07f438cae7799de60437f62d6a701b68d212c4558f. 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/DEMM92302006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efc410cc21385477e5ee4cd05096d0903aa527129f17f76bbdaa4c3eb254f02. 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/DEMM92302003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed2043999b91dcc3c600295ea314a7201d490fba5d58833936479a145a9db30. 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/DEMM92302001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bb3fa79e325291ba60ecc49b20ec1a2ae17b8925dabd009395ba876d7596d9. 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/DEMM92302008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d27d77ee5ca82fb40950b4236e7cb7fd1e62e91d856e82abe7ff0c98948a649. 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/DEMM92302009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d27d77ee5ca82fb40950b4236e7cb7fd1e62e91d856e82abe7ff0c98948a649. 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/DEMM92302009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7992af2cd8bb676f0139b2a5820c4b7928d250d5c80ff28bbf3fde5cc39891e. 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/DEMM92302002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed2043999b91dcc3c600295ea314a7201d490fba5d58833936479a145a9db30. 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/DEMM92302001.