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 0x375a66329f90f33eae96b1d6eac5320bd5ce70b8a402044abef3248163d5c358. 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/59dc5c19-a2fc-4a06-8874-1b4a4c191f16.json and https://artists.proofprofile.net/proofs/artist/59dc5c19-a2fc-4a06-8874-1b4a4c191f16.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 0xf4b96ffab6af4998787fddf00014deb2693a4d8f1664f87b8089a566b3882145. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEZC62022322.
Mr.Sheytan (Lavrushkin & Silver Ace Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe564b1e148c8598c32721492fc6f8f83d859d50321cac200e915a4c813f07f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEZC62050402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39a2a48018b9ea2f8fc64c106bcefaec8ffad691636bd0ce348920b9533c3d1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:45:22Z), 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/DEZC62050404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cb153041c878655e5d3d43fe0b1806fc7818c99e78c015d850790e444da75a. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/DEZC62181477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a9c6fab895c9266449bb05a9650e052225d0904e9b4c438af0548140830f79. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/DEZC62186618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b17bc1236af9bb581880939701b11056fb6cc157c2d560bfcf8da1fae84d1c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEZC62196004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d0fd369d0587c261e7f868815276ca7c8995402c0fea92019c435556dd5a40. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEZC62108407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5af2653bf8568a9b9efd84b3076dfa914a85c0ff3e3b090e7a4268b5d85982. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAGE2299919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8650a88889d6db1b199a65940093251059be3a636d5c1ae0b73061f7abb74919. 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/TCAGO2225449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69c82dcb2359d1422f0a258bb51f520f26f329e6b3332005b3cd9e6d06c1169. 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/TCAGQ2230473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc9b7dddff7b3f8a50669b8e54f133c19945f8de1514b4d272ecf1f592683f5. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/TCAGO2230245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e8e2fda0f664f6fefb063071187784d795581fb3b4e67538599884f5fbed6b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:00:48Z), 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/DEZC62331478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c95296d9750e898c72fd86e0b06f0206b53dad313bc37dbd134de60a2a1a802. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCAHU2429400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68c40a885db9d1f31a48493e4f525f55eb1399b88e644e547a62295dd8199e6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:03:43Z), 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/TCAIC2440607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4bf2f8fa30e18574d9669d07050518945cf27a8f3ad10d72066b15f0bb5dd6. 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/TCAIQ2451693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cf78a928a5c42a08ed26b08ece352e4ee693c1b9b499d5f97dfe7141290141. 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/TCAIT2436999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3ebb77cca699f41db802c72bf293b6196916462bf787f1b9854ac199e1755a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAIT2430246.