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 0x3191c5dda95206bf6dfefca20f8a1519a540e5fc19bf324096213278f6191d40. 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/550809c5-94bb-4e2b-96ae-3ddb8978d3e3.json and https://artists.proofprofile.net/proofs/artist/550809c5-94bb-4e2b-96ae-3ddb8978d3e3.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 0xb3b2c9d1a18e2e362bad6bf40bd571ea3662116cf439a63f7aed697e3ea4d4a4. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/TCABE1288135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f7ba951e9f441a57a523096b4126b66d97aeaa931c0b6ccf8ed9f1698f8f9e. 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/QZK6G2094770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270c15db4d1ebf201abc83dcc79dae7e59cb6dfbef2344225ebcca899a9a1e89. 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/QZHNC2052763.
Only You (Coke Studio South Africa: Season 1)
Control-Alt-Delete (Coke Studio South Africa: Season 2)
Control-Alt-Delete (Coke Studio South Africa: Season 2) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839a48b8abbb8aa5cc5bcaed4c512abafeeae084fdc06891b9c44f73c865d53b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GBLV61723475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15d7347f991c9022fd21f791522257c83c6e27403499bd5c16cadefdb0e70c1. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:11:01Z), 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/ZAC031913176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccfa2867ddd18390869a50903be62f90209cdb652634b6a374404c31f63147d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ZAC032210646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70b58d86efcc41da65e89828c48300566f9fbfe7cc292f901ec03d832744de9. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/ZAC032210640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafc086dcdb79d61e2712117310aa1a918a7c9e482983e21ec5716da3e427992. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZAC032210648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4925d655e8be1291e6274badd571a070785582cc7e8364765bd84710181b6ec4. 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/ZAC032301951.
Things We Don't Talk About (Deluxe E.P.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca28508529495a8326e470415e024e3d90d3489c395c584fc67f07ecea0d4c9. 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/QZHN42449425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb576c0a39da0be82aac905c8bd567391ddedd7bcb1eea3db5fb0774f0d67bc4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:08:00Z), 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/QZPLS2450853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0b446372fae9483c8299eb04d6f650ed61414862d4caa8dddc1f7560265847. 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/ZAE121300453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0a54fe4984d643bcb1a84bc9a10a67dd4fe39bd3fc94bfc23ad5acfb6c247b. 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/ZA34K2100496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6631aaf663d864a3adb5eba39c3967db8baa18f93f375ef30be20895f38120fd. 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/TCACM1651629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc919887916b3fe5e4abcb4d6fcb26adb4519b6f7ec2b81133e9a458d29be709. 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/ZA6EE2000090.