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 0x6e0e90bbc97fae467a37a4029baca40ddf99155e565f65c604a314460884db15. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ab6a5de-cbd5-476f-a807-0109d5000bcd.json and https://artists.proofprofile.net/proofs/artist/6ab6a5de-cbd5-476f-a807-0109d5000bcd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Me Versus High Heels (Original Motion Picture Soundtracks)
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 0x2d7c7d5421276d0c0d5dfa0c7d3844fa0e684318da46a2ea6c43cd7951f5caec. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/IDA401300284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec8b42221e7d873faf4ca055b16d054de17a3626ef09bf99fd6daac3c06c820. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T23:00:16Z), 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/IDA401300285.
Me Versus High Heels (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf465aebb5d0bc5492436e6ae694c6e7d47637f0d7dbe04ca78c539eed00153. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/IDAB30606609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0827073babb56ae41aa2de92b414a7e135bafa7aa3bce1e45aeb40a72f07bba7. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/IDAB30606610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2eda17d9deef9f136b9facf9542d22d7ec144d214d7962b7914fb347adeb8ab. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/IDAB30606617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda971c8b90c38681360edf1562f148f222352258f89b9b8beb3412bf0cfe1215. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/IDAB30608663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d472b4c1f6b2e8352fa3bcf3a523189829b14a94a0a69a5c12818b01f5300f5. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/IDAB30608664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b697b07db228675bb2dfbbd0e7cbfa943e5865fc09a77674155ef0cf81ef20f. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/IDAB30608666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5d179e848b3439e4ef237dcd08aa43edf43f46f234ea286a719a2ffef266a1. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T23:01:36Z), 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/IDAB30608669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9becfe875212dcae58a0c7fa2dbb5f29f453294b09f4ac2d849446e5282dc12. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/IDAB30700251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b3aa4123f56054a77976560c156d21955fdb9a75d4cc58ca75d28419a9b71b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/IDAB30700252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367272853475c34ebf99b1426a22bf32b498d2fe87aeb1651c241644077ce0ba. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:35:46Z), 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/IDAB30700253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d42e2d195ee4b6e50852ba779df141168c1f0cee623e45e6e2a503d7b52ec54. 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/IDAB30700254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385c1579d47dd99fc4102990065ab64254011e57eb7512b8958df9b2e3ec548f. 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/IDAB30700256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5606571d9d53008e7c2d392d0ac47b636826b0e0b15542cf8a10b8f5d148f490. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/IDA401300372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1967cd83a98b73321cca235f6e0f9037d94a899cc8a0902283b662360a0d75cb. 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/IDA401300373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff399f31620bfda5a1b9f89471581f2d2ebcc9fb7423326885a4c3211157c32. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/IDA401300225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4176bcdd59c8957cae93c3d526b0e5c027cea2e8d6a6ddf7fd34ba57088d43c6. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/IDAB30606608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc050cff02d78d1e6e4c647330c137085e983feaa2b95292d0064cdbc82d282cf. 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/IDA401300226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732379c0f0836da922276a2e6ad1c0a94355f19d68c9fb2e5adfdc2544654c7b. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZES71815810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751ed58a12a38e2622d18591e934bbd72f779bf0159c6b4d59b9c2787d338b8c. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZES71815816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79cb1a9e5a78185f374e41bab4deced12a09f0f3f1a5f818f39088039ff16a4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZES71827113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb636f0077101ce45312c656fe6dc907564e1e00229a1fab88b0e3904fc8038bc. 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/QZES71827114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff1cb9469591ddf8e2ee8781a02d613b75d5d331b1a3618d8b94719acb9f4de. 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/QZES71827115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468b0c3c8631bf7760465c1f2d2b6504f31030e5ff5a62868be44a66d1c4a8d2. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZES71827117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6db1cc1a201ba4809c5efd221f7444f7b4fdbdab4e97c04b782ef7a00180f70. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZES71827119.
Vanilla - Guitar Version (Karaoke Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0a9f7914b893899562d4490fdaaf03f63ab03234bdc4e7604a6090d742145d. 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/QZS642177023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4711d4e7eaa536b65c9496dd0cc0777e996acb6fd701bccad0e0eb9235f54a4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZS652189299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a437092615d4f174b13fef27990beeeb8eb5a8933db02e694b756e72089c15. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T03:01:19Z), 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/QZS652182153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f81116ed52150587143e015259ca5a5726cad5d36777115bdd3bfa021db72d1. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZS662115393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c0e440cab2a202f11a8e354a4f9bd43c00cf458b50e31439e8df0018d3e9a0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHNA2191192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96555cfbe2b307616a3a670bd47b6f09e4bb55e4ddc6038c6e72e511aa28ae96. 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/FR10S2222696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164f1e605f1991c99987412bcdf5d9ef25caca5af207be949989f3609b4b0db0. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/DGA0P2408572.