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 0x9f1dedc4a7383978ea631ffd34828eccf4eb7621c81083831633666c2cfac11f. 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/70727e83-ef48-48ec-a455-b1584de6a092.json and https://artists.proofprofile.net/proofs/artist/70727e83-ef48-48ec-a455-b1584de6a092.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc958f46750160f203ca83f55dc6a0497100b4096f9688c255882504011dcf09a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USCGH1152410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e0cda678c3605dcfa9cdc1559d398b2bd19fb63ce7a8ec88fa638008db2547. 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/USHM91389591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bdc7222e860e0b660d88836f20239a00a51079fa3914788babbc5dd62bdecc. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USHM91389592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74727c2ef8861305aaff7ab459822c5f7f09165fb226d03f2558b3f0dfee6a40. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/USHM91389597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bafa7f922e0a9d8c0b04666cf95df14306535ad8a4e99afd3310f3a789c108. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USHM91389599.
Confessions of a Prodigal Son (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9f31ac9e972fb81a547de25f6e265545ffab427057788b5c4d52d84998505a. 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/QMAAK1608697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1d695da0e47bdee1e055fd3db13d7c48d3a9e41de6c7f199c126665e713092. 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/QMAAK1608705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae9c8171752fe8da1094ede15cdc7e76958115f2ef00c45660fd7679fe15241. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:07:18Z), 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/QMAAK1608706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c4a26e73b6c92c8cb24768ff419c6f67726a8424a1731f638f5e8ff1dd3988. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QM9A91649009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb015e9c4ab8cccd3ffe90a08ad0e9799a268ab421d392d07b08f5aeb9764db9. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:00Z), 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/QM9A91649010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0724161b8fc11ca8640d0b67d5ee46163cca17608579fa33f27c601a98870082. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM9A91649011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc173f46dbb800d39aeb2fb9bd29334a3069960125c3df5e680c5c806605a3e6f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM9A91649012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc5853de30502753810bc2f34f856f73704aed93eda4076c4bb48facc77213f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM9A91649013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbb051b39b75aa1c997c12d2287ec999f698922efccc1f274e6120f921226b5. 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/QM9A91649014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f96775f6d87da265a4d8695f368f56e380a76308bc5e6dcb048c42d73337d6. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QM9A91649015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe2dd6f5770699df1b1b762df5c474ba676c02d28895cd53e0f564cf9c3d611. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM9A91649016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f76c5858157fd81ae2a69ac6027087bda6346fe444a1563deefd0dec38c76c9. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QM9A91649017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7469981525f0d28d59ffb686f44c2c80d303dd7e17741c19fc08484a16c7334d. 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/QM9A91649018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfa426dac455336cd6f8ff31db30f39ea6ff801b2156ac5b047f910763a3470. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USL4R1801448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343ea38d2ebd7689a67713412462fd7752228645e5f206c7dc51262950aefa1c. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:37:25Z), 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/USL4R1801449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8165579d234dda5ec48e75c0562dd4a27a7dd0dffa979a65f133b87a6beae70d. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USL4R1801450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3826fddff2a11a61a8f1b96d4c7f743cd432d17d81833ae214cc2167243403c0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USL4R1801451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38ebb27b2a4b2e6b094978e7b4aa4932ea4ad7798bff4e150c706e03fc52b82. 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/USL4R1801453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6890e0289bee9630bd3772b598489b7d0d6fba4ce05c863b4fe7bc6b966f75bb. 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/USL4R1801454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5615d4a35e4bc103813a2373e1be00a6b6d9f60b31b36a04d9387353de60b47d. 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/USL4R1801457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311a845bd87ad7d230db1e00d29a5bec63014b65ae93458a4df03e35504e0b14. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:43Z), 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/QZMEM2336506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032b9eeb5911d102094ad1c0d43508067224eb637c9d4d69de3fddf9caeebab2. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:04:26Z), 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/QZMEM2336507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59435d43d46281f38755fcccf48445dded00bd8f0c07ad89c0d3f21b84254636. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMEM2336508.
Bright Sky (Original Motion Picture Soundtrack)