1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x095927a4d4f85453a930539da97a620aa669cfcc501f5bf5d2c5867134b49746. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2705a58-b86a-4bd8-9413-d225042ea09f.json and https://artists.proofprofile.net/proofs/artist/b2705a58-b86a-4bd8-9413-d225042ea09f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brian Owens and Martha Mae Live at the Sheldon Concert Hall
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 → block OTSBitcoinBlock must exist at that height 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 0xdfe6748318a2067c3f3003ac7013e5eccb5d86211759d204652c55fb87e0ee2a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCACC1411498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd6e1bc6181af177f600e840bd1d1eb2d34b478b1ddf462745c9783d56f8280. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:36:18Z), 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/USKWF1100003.
You're All I Need - Brian Owens Sings Marvin Gaye
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a8197b04f27b945a1dea65554819529fe9295d980b07d40b157602c7a9fc52. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPZ921401243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560289ea57971616756b16ba857c7d17cfa872a30d314ef0d8c4ddf0ee120040. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPZ921401245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5ec18084db3b69ed3daf6fb86d3e08efb89e24af3cd3be26301910738bb850. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPZ921401249.
Love, Love (The Anthem) [feat. Nao Yoshioka]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86801de61a2b976726a713f6a3ae94e17950d2c9efe8d4c661db8f769624ab61. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/USCAJ1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416503af734a058af72354c7dd8adfe758b77c5e24a55565ef49dd87708da0ff. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:40:06Z), 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/USCAJ1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5706b0e59fa44cea543d45e223e26ebc44b99efeaa22118530449bf1804837d. 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/USCAJ1600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c9de9b5619c0d0934fd06a84fb25d15db64f69ca45fe29964be82469a228ff. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/TCAEU2058548.
Cool Water (Justice Rolls Down Like) & Sparrow (Single)
A Change is Gonna Come (10th Anniversary Release)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bb5c8d951fdebdbcd4ef0a4a72717f7af90488a9510fab2857b52fed97d723. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZMEM2375499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa99e6b3d83eecc16e9a9f7cdca536ae879799a22f736f75a68885d879f1ee3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZDA42550630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ba9de44ea13152b1efe9f7643eefd61a51bcfa1a1a52058f3f817251d31321. 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/QZDA42550632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf3dfb8d856a68e7f49e90f0d078dcf70e2f27da2a16476dbd8e756e0996271. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZDA42550633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2865ecce9dfe5262ca76162c7c45f387a957357c2ceb3c8d98a0269a98901605. 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/QZNWT2592557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9246471767046a7467f8d6a78e46a88fb3b399f2c4f3976a21a7796728c6d6. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZNWT2592556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2865ecce9dfe5262ca76162c7c45f387a957357c2ceb3c8d98a0269a98901605. 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/QZNWT2592557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba09bc676485c5726de528cae3140322babdd007fbcbfee4882b01dd2d0d2b44. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6G2422219.