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 0xb12668e4515883c3544ac1614e413a488943b6f8a1b16015db5278874a7c020e. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/890d0c63-8455-4aba-a5fd-35bfa3e1b8b4.json and https://artists.proofprofile.net/proofs/artist/890d0c63-8455-4aba-a5fd-35bfa3e1b8b4.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 0x42073d2c4ddf79f944ca3fedf645c130d23cf68e289a1c89160ab15aa9cf5a1c. 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/QM7282409767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914c4972d96a5ff2cb921dbb032d2df831f0fc4405ec1733ff3cd0b764110123. 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/QM7282407693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f266a1f73b6415813607407bb9b8880a21379bc3d20e3772f6e548a792e508. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEBSK2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd7ae0a09a8429d98fe52d5f075a7869ec6800797673cff263df17a01aba197. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/IEBSK2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a06462d0c994792424604dc5dfb04aea0901bc371fcb3541410e95ed47a83b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IEBSK2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7241b4c8a558dc516535da6c6afee9274585e60a78c60fb709dd4f7e5dd7c988. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEBSK2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bf35d75cf28d713109ec516202b87e5680efb645f3e3750adea901d2fbf8f3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/IEBSK2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d05eac36d201ad8e5824047822ba545ef803b13cf60418c71001b9bf6101068. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IEBSK1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f9acaaae958d40c5c4ca3f1003cda4ffd55283d0b3cf7e03b6e3980c26a62f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/IEBSK1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2c3568316b2a1cf8704ecca45e80c640b9c28bab9865bce85b0bed32675a1c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/IEBSK1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c39c05b7e2eddc43d26ec8e48651d8ec0720e8ba85be67f0390fc0d83474cfd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IEBSK1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1df9de5c3ff018311d0e3686acf732cca97d6fbb0302ace6de1fbe411a26c26. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IEBSK1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d5481e8c24e4e511f7f012d0056cf7e224d62742388abc9e57e4a828cb431e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IEBSK1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee8be24a3bbe9306f84a9768d8023606044a80b9e1907d94b851b5db669f44e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZDA71883366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02295af280456bc4c33c8ca01b37a3ef0119b15434ec1f2a8673fe2f8015adc. 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/QZDA71883373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66c9bd3b53a20844f8cf14ca76f1b5e0e09d8e78c46e6ecbcdaeac8526f0032. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZDA71883375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8b607cf6936b70987a1e22811665a181c685403961baee72be1bd8ca3c8cfb. 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/QZDA71883378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6afb905bc2fd21cc624b9755e15d8fc93cc6780e83aa9ed3b1d487525e2529. 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/GBUM71605142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb773096f2c4f9f3f8cfd34834d97d6c1b9fa7dc4b9e1da1a8e15bf9b0e965e36. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBUM71605088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4de8cdd334deb4008164ed6cf9f8e6f6b8960cb42d43b0ea97e49541728933a. 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/GBUM71605084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eff9983f530441d8e58ff18f2344258f968f1f2c755d6742129812d67784bbf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBUM71605087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583db492ca50c49720485782df284588b7bb7d60ec4f4ce094763517c292c561. 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/GBUM71605089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231e91afa0d508f9809fcd55004ca1ec5316fef1290e2038a7ff71144e016b0c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBUM71605081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed1bda0dd73cb4617f44d9e4fb915e87136bb3b7f1e9a17ae5f4a059d920757. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBUM71605090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23a2d678ce0783232ac75bd4cc991a284bec8a54757de04c2173ca62cb60538. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/IEBSK2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5d0051172184706e4bbc67579ed6b15cc7c0d3929817a0b744714ff85e93f8. 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/IEBSK2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f262df0007bb4b69b00ffecf4cee97b0558b25610f34b63f230a3a4abaabf0. 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/QZDA71959170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2c3568316b2a1cf8704ecca45e80c640b9c28bab9865bce85b0bed32675a1c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IEBSK1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f9acaaae958d40c5c4ca3f1003cda4ffd55283d0b3cf7e03b6e3980c26a62f. 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/IEBSK1800001.
Driving Home for Christmas (Live 2fm Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6afb905bc2fd21cc624b9755e15d8fc93cc6780e83aa9ed3b1d487525e2529. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUM71605142.