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 0x4409c2528af61c421394d015a91a1ab543ca187573dca30861bfbccd83fdea56. 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/c922a484-caa1-4023-beb6-857d903e0771.json and https://artists.proofprofile.net/proofs/artist/c922a484-caa1-4023-beb6-857d903e0771.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 0x65246fc76c20720274631c653353dda8ba71b5175b1c194f791a8a1c40c05280. 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/RUA1D2470952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ad3d3d543dd11879defc0311c912e8c2c03261eb5d32913704f366865b280f. 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/RUA1D2441477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd2a6cf38e2fc40d7691ebdc76405241c5c66fa8f7b28688b3e32eafffd351b. 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/RUA1D2401371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06085f2a9dd53186e410a6da5cac554a8620d226d4efde608eff54fc74634cdb. 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/RUAGT2346089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc851bc0af2a237f719a511ec821d1de27e5d81bc1081428d785ab31b1af61504. 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/RUA1D2398378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f45883883b224150abeacfe30d9c02bb5d787cc27ed99f31d14e0e77355004. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/RUA1D2341137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ec1067a3c2091eba1ff3de1c5fee009c2132f5c94c737f463a1b401a3cd603. 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/RUA1D2333088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40240423b055235b1ffc0bea0ba6e5012006d01fa03a599fbb17eed6fd079939. 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/RUA1D2336793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c6bfc1f44d1a221f6192eb219b456cb3c73af6917013d87afd2242caa7ad8e. 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/RUA1D2339733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7474b429a8b0cadb4dafdd85960d59c33654799fd94b114b06e870920458b7. 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/RUA1D2327108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c8fab00a89c0ccc3f068daa0b3d53a117481385fac3b98a72db07569733e09. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBWUL2124433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6f3484a4b5cca557058159fa582c3cca01f21a48a9ef7355b5375f6d4222d2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLPF6681259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4357308e4e4eb084467e1630952d031314a59a06817c2b5e457e189b211e19. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLPF6681258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ca641218cac6cd8c5dd6295b03f0cfd8eba3ba33e4b9ec9a0dca5091881899. 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/GBLPF6681257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7941ea231610cad0351f064b05caa813e299c2481d873e20d4f5a3a005e1e1e. 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/GBLPF6681255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca572c70fb491a99ad6e0b438d9b56241f5d47019aab513d248bb9bd650b0fe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/RUA1D2331750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aea986d33c2b658ad1844cb34bf0ac2174380b102830aea7c0ed95066ee8dd. 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/RUA1D2333078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e0e91ed1bf33ac5c6bbde97356ff7ebe9d3917890ba8aefe70af98ffa78dbb. 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/RUA1D2339727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412617f017cd27c9225230e5c30a4d41254d52b61530e8c9ada92814cde1b9fe. 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/RUA1D2339725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02cc66a37c7c4ad4a8920801cc23966da7ff6b5631b346a3732a9a149fd58be. 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/RUA1D2340054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf7454215944588841bcfded589885d516a20bca317c01b1c7974664dd7c070. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLPF0284596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f477ecf5823708a7da12477ab51a7767302fc4a205c762f7179af517d53da05. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLPF0284578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607c5def27fbd519acddd0b8a131618193d2c61e9a8af03adaaf18fdc9b7376c. 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/RUA1D2339730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb21d7f7e80eae59f8cd33a428754004d32ec2c56cddb9f117d30506cd7617e. 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/RUA1D2333054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235c4a33c18fc7b644836db78e4ec2890ebb7e6f8d9a3b31f095aacc88f37f43. 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/RUA1D2333077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463f423f05fcdc2ed77e274d553105bd4a8e55cc3d7c375661671dd16e47f90a. 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/GBLPF0267508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91ff4e37cf43302bdbd5ef61eab4625dee795511e102c414571d2bd3839229b. 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/GBLPF0267510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439b715f219c768ec5b3f05fee1dee12463a30e673acfab8392ada16a347c17e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLPF0267511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf978ca0404f2d461ad617ffc8e263bf9e664fb8b0e5986f3df53d045477055. 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/RUA1D2333241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bda936bcdd82bdd8f610f5b1038b3acd4cddd34ae7027aa63a8d4e273810678. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/RUA1D2340624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b962dd1ec84f1950d2c77a03ce5051bfd623759f1b05deb6bbad9c2e3342cd. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES8421590126.
Stay with Me… Tonight - Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4149fd3aea7813b755d489225a87108418068f55ed4184a769ca04d6ad7fb5. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ES8421590127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c82f2b2347517f321d6ebc2853438a8fcb689c90211ce629b840e88f67865d1. 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/RUA1D2333090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08cf13c6733797318affbbc5c77a0fe21102ae0ff29ae3ac09f927e9f40c95f. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/RUA1D2339726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe806dd51a824e84a4a6ad8bc3d2f5e14ffd86c98942a9ca8e26aaf7747b077c1. 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/RUA1D2339732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3523381d51002cbfa43d7ad944858d0eab9bf04ba9df67bb09d4aab229cf39. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/RUA1D2328427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c0e8793ac6d5a48e9a9043a9d8a1fc3cf3bb343df2f946a9c67fdd855174df. 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/RUA1D2339728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57871f3fe4ad9237c17133d51bde5368e57086945bd3312c6909ed60a9dcf21c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBWUL2273130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd89a26cd82e09e5af89ec6df35e764eb1c2ca224c7012fb7bd2e9b3f72244d. 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/RUA1D2328397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998056e25eba36d6152ae4fe2d74338d44ecc16e071af8d940206516104fdafa. 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/RUA1D2333089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dea7ac6c5f87e02561305ff8541b558d7b52e29ca3e064523b752a7ad365170. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLPF0284580.