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 0x7af551202ed616c56a649ad3b91db6f700f201069709bd3aca2984c45648d8fd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e268302-b7e7-44b1-b564-413b902f9410.json and https://artists.proofprofile.net/proofs/artist/8e268302-b7e7-44b1-b564-413b902f9410.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Be My Love Tonight - Clubhunter Radio Edit
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 0xaedb192a16a5357a0d12e876aac9dc703e4538d54170191e2736db4ea7984200. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ITC921000165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3e8dd8a8eca19ef541c23a7c5c184321b058cfa9c33a5ba4efe087c3cd9d16. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/ES50A1100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708ac20a3eec69dd1b40606278ab2c067ace1fcded7b583a9858a6fd91fad1bb. 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/ES50A1100362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0911ac47d8ac132dc4336f4b5a38f693bcdd16d6178114bb13f8af331bde805. 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/ES50A1100510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f49cc61da1927f59145913d48910967e6889280f5e2b090ef60e5141a88a100. 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/ES50A1100668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d74fd48b68905312fa11d29c35be15d8cdbc820ecbe46261a1e929cf226c7d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES50A1100669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478e080271a0c66724b02d8c06209b063e548a41e0f0725cd7da4070ba1e8e18. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES50A1100671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc32fe176db31b778da2ab5ad3ae24e57ab0894246be9d47dcaf5d42aca40df. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ES50A1100670.
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 0x516b9c8347b1b776789dc5a58bbe97554c5e5e9c2e5aee198fcff09eff15e65d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ES50A1100706.
Shoo Bee Doo - Dj Hyo & Technoposse Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66af4422e1307e5a436b2367f23a0b187af2f90ae06d918796ee5af8f4f037a. 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/ES50A1200374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb896170233d74771ab9e79c8f9788871a4c6177c80e3f9252939603e392709d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ES50A1200531.
Party Don't Stop - Dj Hyo vs Discoduck Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649f105fc678239e2ffdf391858dc49d81b0e421717c73bee75762e0e93bcb40. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:21:20Z), 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/ES50A1200643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa94ba4d8f6013f1106342c6109953e5e0181d25a7205cfd965980bd0aea92f. 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/ES50A1300348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5062dea26415634da3528f26f2dd2bcadb52490516183162e27cf3b1d3f3bf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES50A1400351.
The Best of DJ Hyo: Mega Compilation Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c5b96985f0fec13389b976a6fbdb25db68385c2a3e32b305a41dd8b0ff3acd. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/ES50A1500268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1a8fd02109451a617fb3cc0925260c81f1c58bb8be09bebeac0fbbb9b24438. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES50A2200629.