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 0xbc451a2ed7c7a605803e9cc92186b9ca0f2486baf30f13e4468868280e43a7c3. 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/e58e23c4-5bb3-4f16-8f6e-9b69534fa226.json and https://artists.proofprofile.net/proofs/artist/e58e23c4-5bb3-4f16-8f6e-9b69534fa226.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Will Be There For You (Remastered 2025)
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 0xeaa2d97e8156e9500b18e124fa21ff7fdc1836795d14ae8f5f099c65af864597. 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/PHS110100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf829832bde63c3db4cf0e49d8aeaa28dd29bc4a0bbdcc9f675010c49731d0892. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/PHV031013653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3051e22e442d7fa4d0ba67c70b2e3ce587fc4b1545205b36f72bc1110c84a5a9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PHV031013655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef9d6d7bbb31984cf65bf69041186cbf301c0f0a5255f5b3d6622046db5cc54. 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/PHV031013656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05d5d74c33451a9d325b05a003c2b686a165c1c49e3751020e0928e64fdf4da. 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/PHV031013659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8663a077e97650f89a19d4be90b875a299592b420408ceb796f149f19430c7bb. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/PHV031013664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f6eae2beb126d073338c82477b4f5ab5e9a40c1c055d2f9d6835df09a404b9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PHV021012082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fef65d6ac4daaf2f2206eb7f95f19cd84b3a5202e3575af2375be559a645c6. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/PHV021012084.
Nonoy Zuñiga Collection -Init Sa Magdamag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed815c0f92b58f626ccbe6f01098797696b9eff1d0249bc5ace4659d2ba24a48. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/PHV021012094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dd5e15ff0976e2894512dce74c4ccef7c321b6f3f90e2a8937f1d9fff0f9f1. 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/PHV021012096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7b7e376d1261077dd2a86f9c7773604781c02c69aeb9c00a470a92d3f24700. 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/PHV021012097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8b1959bd27293f400e8c949581c969ca23945dc8513fa26b758b2dfd3091ec. 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/PHV021012099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc858b383d0a525637aba16eb2444796a4a8accffe6a9f707900682a8899811e5. 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/PHV021012101.
Nonoy Zuniga Golden Love Songs (Remastered 2011)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc3e419f2d5e60b39cf2731b4ea80bdbc0bd15dece61de18850e52de5e59ae6. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USA2P2326450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d0bf02048e52e639eac7183946eb49c0de5fcc71826f2da68c2d279f179dd5. 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/PHUO11011658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b887064cd199a427d89792d0548eb87a1cc857b10ebded8cceaf75c53d02e1. 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/PHUO11011659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05be9abe7f68c36253d5a0be4340c6e35609832de2bc018f7b5e48d3ff10a60. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/PHUO11011661.
I Don't Wanna Lose You / Smile We Have Each Other
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3101b05c0ed6104d00d4ccdc279af9f57b74349c5efa9475912863f759d22513. 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/PHUO11011664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1074871b23ed0cab120172474c5d69baa8fc001efe0841713f8f5b89d1f11e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PHV031014664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704257eeb7634f93b93503cd4edb499a7d3f5a33c89cba1271ff8b38279424f0. 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/PHV031014138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef9d6d7bbb31984cf65bf69041186cbf301c0f0a5255f5b3d6622046db5cc54. 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/PHV031013656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb2322ffe70464bd2901b4c02f182dc2ba39095bfbd4c1c7a87c590beb62d26. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/PHV031014668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbc961afa673e9ec7c00095adc12ead52f63a9d645d0f4bb9b59e94879c3e00. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PHV031014670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3194a8acca15620d3e7578081e9326733f30c5f1657a7e89b6aab7ab9cb2691d. 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/PHV031014671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c90b3ffd410b0e5191352ac7e29acd45d70696eda00c5454e96f0d3e51596bc. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/PHV031014672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb068b89f49a70de799a5cde7f8d9121a782be05efc29717e91273055d310776d. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/PHV031014673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528aac9fb1692bcf4d670f76bdf604c978fb52075a8e3c0e8e6b60c564e91511. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/PHV031012514.