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 0xf00a15216577ccdf693b52545700f7f0291e5819438784113ad6e58a64e694fd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de6ce7ea-85c1-4b63-89c3-61acb9fe96e9.json and https://artists.proofprofile.net/proofs/artist/de6ce7ea-85c1-4b63-89c3-61acb9fe96e9.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 0xc7a56506847bb52a6e84f3e734c62511f4314df18b0c9d277c84bb3a8af0cfb2. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:05:56Z), 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/GBARL1800951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50281a4ee00dad0921c08b59093901bdd50d3a647f34b644822a0bc45622216. 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/GBARL1800952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb291a57ac702abaa22e9390951066430d5a8e6cfe91965415a97c215e8249c31. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBARL1800953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6991dadfa29fb54821e9f6ca59b3969151e65a2354d3b4bf426ff93bdcdc606e. 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/GBMA21868808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cdc4159cbc28c0d012050dfb21da38a7ebeb0f5071e72636cea33904eed74f. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBMA21866421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66e51aefe4e2d8703a4e2dfa8e44b08ec230edab5005edd7eed30f7f8873e51. 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/UKJ8H2310559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf991e13d6f7ff09e3f17a4d4f290564996f1fca22314408f94cf1a94fabbedf. 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/UKXN22306331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fc4e93a8b93d13fb03d77c7c16435bd92925f27a864e5ec20f998452039666. 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/GBLFP2390765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f8ef81480015fd79c7166cd99203b4b7dbf65ca191009a5d232b588ab8834b. 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/GX3Q92391730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69ddce1502eb51af0fba4cbd11d938d5668e443a23afee7be74b9f56cf95995. 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/GX3Q92359196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c406166b0da6db60d44fdeea3edadffdf30a67be73e4cab723ee3921561fb4b. 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/GX3Q92340360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8445590993221f318c08f94dc5683d463f12e8986428e1ad5e10baf800d489bc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GX3Q92309238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5305967b21db71be9396c886d232229a72c6e55d3785e00984d5702350f4820. 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/UKXN22258707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d28dd93618009bbd92a7ed45dccff7a17f38c18d8833e3d26aa97128371e1e6. 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/UKXN22230078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae735f6fa9a032f0ced840510cb6627dfb4e105c76eafeef7338269c1b556f67. 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/UKXN22220654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38d761945cabf9f50acdbaac5c26aac2959847da8e72dfcb445723062977825. 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/TCAGE2230368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c2c7f8b5e193e63392b14a219e1447713130af37e564fa105b5fde788aebaf. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:08:27Z), 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/GBMA22096569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7feca201b0d04a4b1662deeeee4be47c69458732fe3d4b078b513a584cb994. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBMA21867792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377303a068cd1e7c900e0323bd8cc131f754bd82070e0f5dfd29fd9d2af808cd. 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/GBMA21875026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9f483615080fae10a5ee9b085dd4d4080231786980cca8babf883d5dfcc36b. 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/GBLFP1893546.
The Answer (feat. Wretch 32 & Cadet) [Sevaqk Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84c8186ab35623d711be7e6d86f826a463c0c567aa0543e599b115f28c29bab. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBLFP1827598.