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 0xd6be08ba9b8f9cf30849dfaeaa43163982fcb1f24d0d0ce23d653eaea38c09c2. 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/24efed99-d037-438d-bdb2-283b4c5d338a.json and https://artists.proofprofile.net/proofs/artist/24efed99-d037-438d-bdb2-283b4c5d338a.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 → 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 0x73c8915d3d403c59bbe6228cdb610a2bbd56f14aa4fc317188fdd51c4daf3785. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:54:20Z), 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/QZMZ92030907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bb87f9699fc86ac7e31a529206c494e1e9be03ac63555d96a79fb9318a808b. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/QZMZ92030909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140b45bcbea5a0d4128064484e79255ca415929102426447fbb9275d27fc1efa. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZMZ92030913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284bb91467946e828057171316d14dcf1cc50419a00ff4e27c28e2892271d1b9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/RUAID2127212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a93b132ee60aa07042ae356679c502250ba392641295b813f198ff483ebd4a. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:02:35Z), 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/RUAID2127214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c611a6d88750d013345b92613c56e829c2959d3aab64402db91cf40704d297. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/RUAID2127215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe382f1ffaa8b58c9b054d540e079b9de47440fc20dc8c704060f8e0cfb1c4dc. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/RUAID2106904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3d021ca03f9984b7d262c26363329c45bd65914091e9e01bba9a0b3065ea38. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUAID2127218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35b7e468a3631ff3ba5d15700e05222f35d3bb4ce21d955369b3c9ca605f951. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUA012100950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88396abe6bbec96e396886bb93036dbc9f2e9263959cfe9697038b263ae23674. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/RUA012200238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f0d5565dfd28eec898744043a9635794a48a3b6e2ea6d18e36c964c935109d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/RUA012200252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357b27f835b392ce73ad5ce1d4f12600eafa8ae8d3c2a6b1df8dd9e52e2de9d3. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/RUA012200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73793f8760829f7599d1066fe19da365a209fcb48442b97a9f8176a7134dd435. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:44:57Z), 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/RUA012200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b01002ad55e1f8326193dddeee04629df7327c00607e4228ba8f923a28d490. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/RUA012200255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5f662fb8661fa1fa8b1ba4cb4762066e7607d53b488f0c7c3a2ff2f9417530. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/RUA012200256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089fe7eac9e5342df8f4e72c88cc43db002394779901beee193ff2e8b0eea6d4. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/RUA012200257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dc609c41b3c7ed3fc58c540efa5643ddd7c2c3fa7c84cf2d724d9ed665714e. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/RUA012200258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f863e19f2d4406a268e612497e22b47f8e01e20f6969cecaeb57853727744a3. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/RUA012200259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff4f855c37c32a90fc9a7a5626f0fac3ad28d000816c0a0976cb11359e5f8bd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/RUA012200260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6748137382b2a18079f4a616df240baa28f0916fd06d9b5e202a5c9928357f9d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/RUA012200261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481e317c90e6bc917fc101742d912e04ae68ee0a1ed01cefcd13b89ad2c51ce1. 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/RUACR2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90edbb1cc997cd493cb1fe60ec377073946dd215b579104fc7d42f768863c5b9. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/RUACR2301314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9aaa162775b050b32f5fdd05c53de1e53ad41a918a63c481c51e9e2b514bd1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:49:48Z), 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/RUACR2301319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd489fe72538f4c6661760963504a9abd4a615d1db369f54f4078358c400b0d. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/RUACR2301320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7960797c52d8db6f86d05e680683c7557cdff5566c332936c8c0c71506abcf40. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUACR2301321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5576475c608f4cfe1d7c56c4190cae82647ee429443203cacc80a3c9265d71c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUACR2301323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf71fd294a751e88bb36f1befd3f54cfb8f41b4af3d60b543b80e42a30d3333. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/RUAGW2300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b855e7affe94a055502337fcb97fef779c2d3f2083f473c7a84c8329bd3808f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:40:15Z), 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/RUAGW2300240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2e766abca26589012ed493767dfd09f4c8de5d2b831d718dfba6da0c2319c4. 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/RUAGW2300241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708273db34819ed7b62fc00892bd1a1dfc722740c0bb2f8fa668d33b9e6b709a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/RUAGW2400326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e257478fb3c45223f4c3847aa27095efa1dc93bf8d0b130afaa2e23439635b. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:03:50Z), 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/RUAGW2400327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d48cd2bd5ebf227aaa2d9c39b5178ed43c629aa23d990457cf879b94e005fd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/RUAGW2400328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9d11a1f6bd09b830cd09a274d272cc49e3daf67641289c8f4d10e3199c01a1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/RUAGW2400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53300cabb14cc1c1d1a12ced2f110cd104c69051e57521b6872e3c1077224137. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:01:49Z), 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/RUAGW2400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e81b6a0c15be43d229dbf637f05bb5825881b1d26624d3ad9f482aadc171d2. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/RUAGW2400332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b1cdb6e571a2728e8576822ceb8a010559975ee8416a1ddc5d3850638cfd5d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/RUAGW2400333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe103555ea90cd980444891fab0018c29840a2f1e637e588fa2c982d4b9744e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/RUAGW2400334.