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 0x938a2f4578aa571484469142063cdc446e08638e64a51b6fb45a3699187cfe7f. 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/1c04e946-771a-4a6d-9c53-7f71eadf185a.json and https://artists.proofprofile.net/proofs/artist/1c04e946-771a-4a6d-9c53-7f71eadf185a.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 0x7611fa6beb4714f9f4d35db77903ad0ea4083fceacf0ecd7cebbc055b806ecd6. 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/BK4DA2319173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5985fc7aaf1fbb84d739d5c6d05aeba04074cae87f09c941b462f1c1f3b12f03. 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/QZNJZ2368122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30ee05be1a246c87ea47cec1bb5fee4c02d8aa834c6b5dc879a74cb3a9394d6. 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/QZW9L2346202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ddbf1a0f164b99f7eb6cb895f9244c114ab757952a9e1e8449019fb6a6a2e0. 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/UYY112300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30886b870d21bb7128e2172d1e02cb5f730e08142ee2af89868a9f1f16b25d6f. 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/UYY112300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec58d86e25b02cf9bbcfbbd1afc9616875e9306fa6c74d785bc2d1b2bec6c20. 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/UYM122302007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84d8dc2f952f0294da8eedc2d3f9cec0930ec3530eabaffe755a48f8a3e87f6. 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/UYM122400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d15619c85333b0fc495a21997cd17104d0a3e0d83576a7ad9003601be109e69. 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/BK4DA2415659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb02fbe4ab4828fed2c3fb42ffad85dd10884d43ebfd785f3c77ca7212033d28. 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/UYY112400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592476f33a01cb6583d81d4f5e8019b822fbba6e5f70563f35e01f8915c84572. 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/UYL842300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa9dff1637d796f8b041f5348cc06619e5902ab69b87614979209a31749f852. 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/QMBZ92247652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26275bbb435124af9492844de2d3d52437c15cf9d9c2a0d48be41990dbadd47. 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/CLEM42100969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96793b33727ef3384efbda22eba8e091daa3307c5c4d799346aa377fb5dec990. 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/QM4TX2494291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc1db59ce5af7bf030362a54efb02c7fd696a20361bee451c821b46cdbad9be. 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/UYM122400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1fbab69863b9ee02d8f9ff2ca99ab3dc8e38131f1964197408dad8d7c8dd06. 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/AR5UH2401221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085463bf4d74e5f10d66afcf50bfe3875cc264157faba59e3aeebf42d63660cf. 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/QZMZ92516467.
OAAM #3 Lauty Gram | Nacho Serra - REMIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cef1cb84429c7730b40ea3e2ae062d5ef0a4c69337b4681e8155dedb211363. 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/QZMZ92516468.