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 0x9d60e3391164a867300b80dc20be6bda245642664281ef647ff60921e941b81c. 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/009ba5ce-6f90-4e8f-bca2-59c326fec671.json and https://artists.proofprofile.net/proofs/artist/009ba5ce-6f90-4e8f-bca2-59c326fec671.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 0x0a2d416822c24d6e64ae0687f8c4c9b2757f4edc6f037263813a8bba4de64648. 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/HKI190853112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc26b337bd21431f7b579c1a475c364f1108eb778b5ca5556683d29ec8c048ff. 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/HKI191010303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604e060981da8262f3bf43b14d1d4db45a9d7e0f468754f340fa51b31a342ece. 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/HKI191010307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194016979f635f84b2602671157b6e76260a363b0dfeae167f75b60e45fbc5e3. 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/SEWDL6144467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79d5c14074750b119846ae46d6bc5c2e85ec53ac647da2c29a37aeab5a76e24. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SEWDL6144482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914ba84b2789ac057180e36c24bd3f4caf3989676ef73910e3139d264324d013. 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/QM6P41939961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c0a95deb3db827cfe1e4d7a04ef3dcb51f18b5929439e344d3d2f18a0733cf. 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/QM6P41939897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e0c35fb62abbf22d0781ffb0d0cfa6d1c06446b7972b11c67fa1327ef8886c. 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/QMFME1907785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428617cabd4dbd5bbcd3e2f5da661fbb745a41b5f1a184047cfe6cde5efcab34. 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/QM6P41939964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d18307e461966966fb77a9bcdb288e1561e01e47f294a49931b474d822dbdb. 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/QM6P41939899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772cfb0167214363ec62307ab8e561222539c07e7a394e27e33493551e73d1c5. 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/SEVOZ2003101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df2909bee5b2746d51008af264a066acceff2e744d01335fa6abc4a2a8ac14f. 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/SEVOZ2003201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed09c99c07f2056cae0312c79ac90ae9c236d10d467b2de02c00228cc7a59420. 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/SEVOZ2003301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd1c38253dfb07d1a682dfb4d4da12697ba0e0843494b5e5a1caaee5c85276a. 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/SEVOZ2003401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411304a8d79846c824990d9798ff72f2fdceec6364113c522ce60bc648a92461. 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/SEVOZ2003501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575d62e9b1a9549a399e78ee7199bd6ad9f52688f55ae1bbbc82a0edba895a6c. 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/SEVOZ2101801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fb6a0ed219d1e67eb724baee9e06ea3f96277bd17c407e1b951dec663d2bc8. 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/SEVOZ2101901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48afe81ed4ad0bcfc7eb4c2384568e03d5818703e142b169e176dabf5cf3aeb7. 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/SEVOZ2201701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6581e9c24945bd828ed2fde069906507871909f6cbd1d276fbdae53691166fd. 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/SEVOZ2201801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb230689759251be329ac828f168b6381890cdc473198bc96a6b399f958f9e22b. 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/SEVOZ2201901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f1b53af17abd52842604bfa849c8478dd36e760f217f473968ca4ee0ffe9a7. 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/SEVOZ2100901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1f9c31dfad040e0016951c1cf6c6865a0e0fe056da304433fd4305a0230b41. 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/HKI191834205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5a5d8c96e21ae78759d672a61360f77870b5dd3747d1d2d182c86b25897618. 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/HKI191834202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cae02b909a06fd6be8867fece8faf53870ea3e59ddac34b6d3d459a2ab5a7cc. 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/HKI191834218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb810c426dc7e9403e4acbacee03e85a019add99b6764a3b20402c4ec3c87b53. 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/HKI191010312.
Lift Me Up (Arr. for Piano by Dan Evmark)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeac9a5736886e3e7f9e3c192790066faecfb9223b5741e27c23809c01ba944a. 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/SEVOZ2300401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79d28cc437e325cb6c53a2ec6f247b983fcde679f11f40e52fa223d888ad132. 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/SE4272000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0131f990e3d25133906129c58a3bb60ac9c9602d9d199bb2ffdfa4f87273894b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SE4271900201.