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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc908a5ae160e2a4ba482250dae4b8d33e50a7e960314725e349b033dd0cf8d0. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5667831-1869-4539-966f-21b031902e56.json and https://artists.proofprofile.net/proofs/artist/b5667831-1869-4539-966f-21b031902e56.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180c7cbc742a346abd71700d893bd5a14c3e72635adc3c729c2cd12480230698. 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/GBPKF0800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c1c4bada8f3d935f0e2659c79dc180b31bf608a854f0ce43f433325a1b03d4. 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/GB7GV1060007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4feeaed54127d45337b7c34bce92cdf99c042d8c623efb4f4b66f345fb312ce1. 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/GBNYT1100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c604be7b6cfd15f3c3c80a99d35538c0c7fb78918087c1beaf3eb87243359f. 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/GBZMQ0900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcfcaf1f3ec4ed5803b3cc633f0b96c279c17998734e8ae37901d9abca57c66. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBBFH0000076.
4 Evermore - No Rap Version - Single Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b698bcf20976679d848e270f6929e69851d987164e5af415efdf0f3cf20e68. 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/GBBFH1100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2737d061cf8d79f543947fd1c570b71606dcbdc89cfc808044dbe619f2b788. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBNYT0700274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156dbfdb4ffa9636885277dff9ace249ef0684f756efed10b08c86d6b53262ed. 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/GBNYT1100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5347caaf1760881dfe310c2191e4693a023aa486c0db51d0299ca2232d8d2ff9. 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/GBNYT1000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dce596d94b514eac49d20e1ddfe2cdbbf16444371d67e04da838c8b6cd7ea4. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBNYT0700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d3622e53e141c3c33a5447135a90af04d9cd08016015ea3bcce1574c8baf31. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBNYT0900070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76488cafe7f96e8bdcbef02fdb4242e2b492bb878b37ba6563c5f5a340f00bc9. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBNYT0800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f38ca064a8da70b2d20c674875d56471a806f6059e97e3a8c6cba6fd47ecc8f. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/GBNYT0800182.
Higher Love (feat. Najee and Nick Colionne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf3e8012262cbd9e7fba0504763b4790d5f5872b4f3cd40fca12171aa288f72. 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/GBNYT0800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8bce2facc6195a3b512210a9cb9099f9780339f00d112a5c1a05535e3f6c4a. 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/GBNYT0600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5768c132c2591164f7259296b7af9aa14572a5329df48624d1c458c1f988c289. 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/GBNYT0700093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf904888c2c53a8139d6695e6b056fa00c3a01c499e39f1d596a5ac96a3be0b4. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBNYT0600134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecc59da2670ae4e66d97f448225a80605c5ea814e51be993c18b9482cc05ca3. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBNYT0800077.
Someday (We'll All Be Free) (feat. Noel McKoy) - Yam Who? Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2279dbcbae5b67b50309051723e371279e451d566e212fbf1359659c8a0719. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBNYT0600198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46156ae3150a9a2629529e0b376bea70e840b7c58032bfb59f1a173d856628b. 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/GBNYT0900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e8bc0e1dbe062db24fb56d0502030beaf28c020edfecaf4b6ebfea3f52465f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBNYT0700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3a3e697f5d9d7f07fb3bfcd22e54ad2c454060cc73392ce70ffff66afbb9dc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBNYT1000136.
Orange U Ready (feat. Keni Burke) - Cool Million Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b9748faf1a1d9dfb0589c326a0d6fb0c05bb68a14e66dfa59f8c4c733bfd2c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBNYT1000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c978992dab466d88bcfb3f78044426fa3c00fd0db28a2ec7a7796a5c035b46. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBNYT0800135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa2ef40c0a17a9ded429dcb3f1162ab9353ed7d32a3eebdfe887ad6341655d8. 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/GBAHT2200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957799d3fbbff3b5a45e3f4020108d393c6d16975c4a258d5ddb42e22c3654b3. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBAHT2200075.
The Everyday People Project - Volume One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603e33ce509786c2b40ed8f40d4783c4f2ca76f99a85e8039af73d62eca8e0f4. 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/GBNYT0600144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219fe81dddbdecc81259841a672380ec13c88574dba47cba4bc9aee873a864e4. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBNYT0600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e83cd54a7d4d656a2a44029c57d1bd34758e913769712b879901e584214210a. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBNYT0600149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f11b2aa5597a172c2036ba561c7194f535e0ec9d6c13dd26b070bc2112beb5. 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/GBNYT0600152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb1de86727a415b6522c828749da67bb1657a799b912cbcec69029d5393d9b9. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GBNYT0600254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686b69c404a7da1c0451ac9a64d3fabd03f332baafff649a9b3db827c0774a4e. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBNYT0600279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5551c560831e585b0ffd28b253b78b0dd526b323d91ac9ed03c493e4f0860a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBNYT0700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa8012200c3a704c7d94f68efa1df3f22078f78ae1ae42c96f26791e1008334. 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/GBNYT0900114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee0cca8f9b14f9dd6a15f405c17271ef90cdc1569f836914366fbd6997a71c7. 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/GBNYT0700071.