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 0xa58b54bc1019f3e159f95ca7254cfd12690fc39bec714bcd8772ef0bd0762cbb. 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/58fe6322-2610-4c4c-a708-5f758cf0dc48.json and https://artists.proofprofile.net/proofs/artist/58fe6322-2610-4c4c-a708-5f758cf0dc48.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 0x96739774d38036abadf143179385d38c8a1ce8a4f988b08a67d833309ce97769. 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/USR2M1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8ecd5ef86a649e598e5252101b713ade81381eb57991d02b444a5394707fd1. 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/QZNWW2094132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c92573ecdc9937d4229b267b3043e564f3eb3eae6bfacc98cc23a2705a0f186. 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/QZNWW2094134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f066528bf637f08545a154558ce7339383fb08cca839ea457e1eaa8d337bac9. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USR2M1500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59c6cec99c78b9ddda34617c0c9e8282ad6ef6f2d4511d9bdc0b37999053ef3. 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/USR2M1200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a339303c1851a8c4830c2f4b258a4c1338fd03fd39dc5904a6dec272d070be. 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/USR2M1200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879999dd7c349150d2e49b428889fceb118082e976dba1b08983ff72aaa44aff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USR2M0400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3690871819fce3cb1022487bcce0713f6974f7c602151cf8aa9d8fb25f65f2. 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/USR2M0400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e17101f6bbc59509a2ef452b8c1736ab99062ea730bd1b3675f9626a59add4f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USR2M0400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdf7b61ecaacef6fd0ecfd1197dd7031099b34be9c3902c467620b043e2ded1. 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/USR2M0400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc5bdf4836d18c8f0df502509b52821170f8fa46fd6611913595d655c04af18. 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/USR2M0400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f3864ccd974aec51880deccf11e938c0c0c5706a6bfbde8270fd37b228bcaf. 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/USR2M0400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a113a3908008a3b137ba74ea58bc8e254ecbda157cf2de19d10ca6cc10a798. 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/USR2M0400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1dcb74d35746647ff2e09b6ab25aeead6e5c124fc76e9d7d0bf27ef31af720. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USR2M0400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184fc03069fad1ae0b03a8b4129ca05221d3c5a0054315dab5f8cccf1c80a40f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USR2M0400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e78854f678a1a828ef21373a6b67e20845a9bc551e1e406a589ebec6639b952. 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/USR2M0400039.
Eternity II: The Encore - (A Romantic Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c47a702fd357e226b29a2dd9dfda76ab9748b866a99c0546136ab0f2d3e3a1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USCGH0984171.