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 0xbc7b76874e2c98fa27475732e0d290a00b56696d9dbda522ab89c7417a663c4c. 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/a043f47d-4562-4928-b1d7-04b230361106.json and https://artists.proofprofile.net/proofs/artist/a043f47d-4562-4928-b1d7-04b230361106.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Four Horsemen of the Apocalypse: I. War, the Red Horse
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 0x96823682418ebe35cc5f14b9e444d5c6a106e69b90d46e72a0fe811814237785. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USHM82070707.
The Four Horsemen of the Apocalypse: II. Pestilence, the White Horse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3014ff9977af0c4fcd48308f4d767d22b8d89f48969805f310360c01ff070864. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USHM82070708.
The Four Horsemen of the Apocalypse: III. Famine, the Black Horse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7016676b58d74f76d69bb048b3963c017b479448eae601675cd498cb23cd0a53. 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/USHM82070709.
The Four Horsemen of the Apocalypse: IV: Death, the Pale Horse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a50ae6ba6ef1a1cd813f3e1e46ba40d612182756e44a249301f21b8937c1fc. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USHM82070710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2744d4854e1fde8869d4219c4e2cc48912b6d540edf2a8a8a28b7dea18ce3055. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:19:01Z), 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/USL4R2216425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa47eac7b7a286602eb3ce0101bfc9a796bddf4e4b19b98a2ddd1e5cdbc23e2. 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/USHM22391332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29ddc304854042e2a75ecc713c908937d5b46b298924bf742c00de94ef0cb3a. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/USMH92369116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb7cab75fc70433cd7037ce529841b995c9de8c68f709040d6a5ce778b107d7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USL4R2378494.
Santa the Barbarian: The Complete Saga (Original Soundtrack)
Santa the Barbarian and the Pirates of the North Pole
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402fbc0657a8d20d1dc5a9921326ba2e261f5d8fafe44230ab20f9b6075f5a94. 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/USHM92459796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9561ba2430c964a99def6a54e0b579b18206b72d2676446db56f3c668ec22d67. 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/USHM92459798.
Darklands Legends: Movement I, The Mad Prince
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffa4dbf05c65edb21242b993cfc5d12addbb40b5e3f95f47353bc32173ae521. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:41:39Z), 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/USHM92459800.
Darklands Legends: Movement II, The Serpent Priest and the Black Bell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60a67f7a12ef1cb6c51900e7a0265bb48cea1b0985324698373e64d40a29729. 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/USHM92459801.
Darklands Legends: Movement III, The Queen's Masque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1fb72e3ce361b246ba19a0ad6ede2fb79999cf9d90d93c112f851345228c0f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:07:36Z), 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/USHM92459802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4041660637fb105c17bc8498889e82bcc913caf142ee7f52d97dc91828e4a39. 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/USHM92459803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb441d16b0782647f4424880d7e69c6cc40c0b57c42bfadfb215e6edd7bc1e34d. 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/USHM92459858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58649f0d31bbe277882e95732997ed88bea5f3cacc245d0a9325f307a068f2f2. 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/USCGH2582683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d980dd21f8802a13a0af8ee4ea276975d59e7d6602bbb12901349785040d2a6. 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/USCGH2582689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b830cc6dc594c54e9f004e8fc1dab9006b27fa141c9c2556c3a6dd29dd4265. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USCGH2582692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b434d4a710e030b7fb5643efb484be7ce8a109e5ed7f9d35fa616696de847c5. 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/USCGH2582697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734505fb265a797c83ff4e45e6b5531e658b8d61b9dc21eeb4d242af222ea28c. 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/USCGH2582706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec0ab37e17c609830e2ec99e81bf8953dd4595f116c858b59ae47a706470d6a. 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/USCGH2582707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab1a379439093d7b9e5a9829ecd0b09ed6f0327587db3496ddaaf270cc1015e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:01:58Z), 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/USCGH2582710.
... Music speaks: The Music of Randall Standridge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998248731383a8497a9599f3ee82e94d4fe2ebc52e207df7b8d3383f3663c1a6. 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/TCAGS2383869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b70afdf29cc261d78f3e1e11ec4ecdf9bdced9a91a75a1be5db16f5a3af7f2. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TCAGT2301609.
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